./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/parallel-misc-2-unrolled-atomic.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-misc-2-unrolled-atomic.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 9010a499ef96f31ef98b99a567d66bd11342d64ef955a852686bd9085f4ce268 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:10:01,967 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:10:02,025 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:10:02,030 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:10:02,030 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:10:02,056 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:10:02,057 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:10:02,057 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:10:02,057 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:10:02,058 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:10:02,058 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:10:02,059 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:10:02,059 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:10:02,059 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:10:02,059 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:10:02,060 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:10:02,060 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:10:02,060 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:10:02,060 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:10:02,060 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:10:02,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:10:02,061 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:10:02,061 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:10:02,061 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:10:02,061 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:10:02,061 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:10:02,061 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:10:02,061 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:10:02,061 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:10:02,061 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:10:02,062 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:10:02,062 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:10:02,062 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:10:02,062 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:10:02,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:10:02,063 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:10:02,063 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:10:02,063 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:10:02,063 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:10:02,063 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:10:02,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:10:02,063 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:10:02,063 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:10:02,063 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:10:02,064 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:10:02,064 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 -> 9010a499ef96f31ef98b99a567d66bd11342d64ef955a852686bd9085f4ce268 [2025-02-08 14:10:02,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:10:02,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:10:02,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:10:02,352 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:10:02,352 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:10:02,354 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-misc-2-unrolled-atomic.wvr.c [2025-02-08 14:10:03,701 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0a4e246af/4ec72250ca8d4ba3811fee9f17afc848/FLAG4fdd6eff6 [2025-02-08 14:10:03,997 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:10:04,000 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-2-unrolled-atomic.wvr.c [2025-02-08 14:10:04,010 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0a4e246af/4ec72250ca8d4ba3811fee9f17afc848/FLAG4fdd6eff6 [2025-02-08 14:10:04,031 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0a4e246af/4ec72250ca8d4ba3811fee9f17afc848 [2025-02-08 14:10:04,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:10:04,035 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:10:04,038 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:10:04,038 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:10:04,043 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:10:04,043 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:10:04" (1/1) ... [2025-02-08 14:10:04,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ebfa1d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:04, skipping insertion in model container [2025-02-08 14:10:04,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:10:04" (1/1) ... [2025-02-08 14:10:04,061 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:10:04,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:10:04,222 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:10:04,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:10:04,255 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:10:04,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:04 WrapperNode [2025-02-08 14:10:04,256 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:10:04,256 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:10:04,256 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:10:04,256 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:10:04,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:04" (1/1) ... [2025-02-08 14:10:04,269 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:04" (1/1) ... [2025-02-08 14:10:04,282 INFO L138 Inliner]: procedures = 19, calls = 16, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 61 [2025-02-08 14:10:04,283 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:10:04,283 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:10:04,283 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:10:04,284 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:10:04,290 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:04" (1/1) ... [2025-02-08 14:10:04,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:04" (1/1) ... [2025-02-08 14:10:04,292 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:04" (1/1) ... [2025-02-08 14:10:04,304 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 14:10:04,304 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:04" (1/1) ... [2025-02-08 14:10:04,305 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:04" (1/1) ... [2025-02-08 14:10:04,308 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:04" (1/1) ... [2025-02-08 14:10:04,308 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:04" (1/1) ... [2025-02-08 14:10:04,309 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:04" (1/1) ... [2025-02-08 14:10:04,310 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:04" (1/1) ... [2025-02-08 14:10:04,311 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:10:04,312 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:10:04,312 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:10:04,312 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:10:04,313 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:04" (1/1) ... [2025-02-08 14:10:04,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:10:04,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:10:04,341 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 14:10:04,343 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 14:10:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:10:04,366 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 14:10:04,367 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 14:10:04,367 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 14:10:04,367 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 14:10:04,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:10:04,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 14:10:04,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 14:10:04,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:10:04,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:10:04,368 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 14:10:04,452 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:10:04,454 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:10:04,747 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:10:04,748 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:10:05,003 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:10:05,004 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:10:05,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:10:05 BoogieIcfgContainer [2025-02-08 14:10:05,005 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:10:05,008 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:10:05,008 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:10:05,012 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:10:05,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:10:04" (1/3) ... [2025-02-08 14:10:05,013 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12cef761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:10:05, skipping insertion in model container [2025-02-08 14:10:05,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:10:04" (2/3) ... [2025-02-08 14:10:05,014 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12cef761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:10:05, skipping insertion in model container [2025-02-08 14:10:05,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:10:05" (3/3) ... [2025-02-08 14:10:05,015 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-misc-2-unrolled-atomic.wvr.c [2025-02-08 14:10:05,028 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:10:05,030 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-misc-2-unrolled-atomic.wvr.c that has 3 procedures, 45 locations, 1 initial locations, 2 loop locations, and 20 error locations. [2025-02-08 14:10:05,030 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:10:05,092 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-08 14:10:05,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 48 transitions, 110 flow [2025-02-08 14:10:05,167 INFO L124 PetriNetUnfolderBase]: 4/46 cut-off events. [2025-02-08 14:10:05,169 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 14:10:05,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 46 events. 4/46 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 150 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2025-02-08 14:10:05,176 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 48 transitions, 110 flow [2025-02-08 14:10:05,179 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 44 transitions, 97 flow [2025-02-08 14:10:05,185 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:10:05,195 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;@367a2c73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:10:05,196 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2025-02-08 14:10:05,200 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:10:05,200 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2025-02-08 14:10:05,200 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:10:05,200 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:05,203 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-02-08 14:10:05,204 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-02-08 14:10:05,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:05,209 INFO L85 PathProgramCache]: Analyzing trace with hash 329009842, now seen corresponding path program 1 times [2025-02-08 14:10:05,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:05,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571440276] [2025-02-08 14:10:05,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:05,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:05,286 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 14:10:05,309 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 14:10:05,310 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:05,310 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:05,448 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 14:10:05,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:05,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571440276] [2025-02-08 14:10:05,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571440276] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:05,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:05,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:10:05,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950549064] [2025-02-08 14:10:05,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:05,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:10:05,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:05,483 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:10:05,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:10:05,522 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2025-02-08 14:10:05,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 44 transitions, 97 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 14:10:05,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:05,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2025-02-08 14:10:05,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:05,800 INFO L124 PetriNetUnfolderBase]: 558/899 cut-off events. [2025-02-08 14:10:05,801 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2025-02-08 14:10:05,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1713 conditions, 899 events. 558/899 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 5070 event pairs, 268 based on Foata normal form. 124/514 useless extension candidates. Maximal degree in co-relation 1637. Up to 778 conditions per place. [2025-02-08 14:10:05,814 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 23 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2025-02-08 14:10:05,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 36 transitions, 129 flow [2025-02-08 14:10:05,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:10:05,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:10:05,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2025-02-08 14:10:05,825 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5138888888888888 [2025-02-08 14:10:05,827 INFO L175 Difference]: Start difference. First operand has 47 places, 44 transitions, 97 flow. Second operand 3 states and 74 transitions. [2025-02-08 14:10:05,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 36 transitions, 129 flow [2025-02-08 14:10:05,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 36 transitions, 124 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:10:05,834 INFO L231 Difference]: Finished difference. Result has 40 places, 36 transitions, 78 flow [2025-02-08 14:10:05,836 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=40, PETRI_TRANSITIONS=36} [2025-02-08 14:10:05,841 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -7 predicate places. [2025-02-08 14:10:05,841 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 36 transitions, 78 flow [2025-02-08 14:10:05,841 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 14:10:05,841 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:05,841 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-08 14:10:05,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:10:05,843 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-02-08 14:10:05,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:05,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1609370814, now seen corresponding path program 1 times [2025-02-08 14:10:05,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:05,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742978643] [2025-02-08 14:10:05,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:05,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:05,856 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:10:05,864 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:10:05,864 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:05,864 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:05,925 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 14:10:05,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:05,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742978643] [2025-02-08 14:10:05,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742978643] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:05,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:05,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:10:05,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414579193] [2025-02-08 14:10:05,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:05,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:10:05,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:05,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:10:05,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:10:05,952 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 48 [2025-02-08 14:10:05,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 36 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 14:10:05,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:05,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 48 [2025-02-08 14:10:05,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:06,058 INFO L124 PetriNetUnfolderBase]: 312/643 cut-off events. [2025-02-08 14:10:06,058 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 14:10:06,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1201 conditions, 643 events. 312/643 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 4385 event pairs, 269 based on Foata normal form. 0/346 useless extension candidates. Maximal degree in co-relation 1195. Up to 533 conditions per place. [2025-02-08 14:10:06,062 INFO L140 encePairwiseOnDemand]: 45/48 looper letters, 23 selfloop transitions, 1 changer transitions 0/34 dead transitions. [2025-02-08 14:10:06,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 34 transitions, 122 flow [2025-02-08 14:10:06,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:10:06,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:10:06,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2025-02-08 14:10:06,064 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4305555555555556 [2025-02-08 14:10:06,064 INFO L175 Difference]: Start difference. First operand has 40 places, 36 transitions, 78 flow. Second operand 3 states and 62 transitions. [2025-02-08 14:10:06,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 34 transitions, 122 flow [2025-02-08 14:10:06,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 34 transitions, 121 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:10:06,065 INFO L231 Difference]: Finished difference. Result has 39 places, 34 transitions, 75 flow [2025-02-08 14:10:06,065 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=39, PETRI_TRANSITIONS=34} [2025-02-08 14:10:06,066 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -8 predicate places. [2025-02-08 14:10:06,066 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 34 transitions, 75 flow [2025-02-08 14:10:06,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 14:10:06,066 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:06,066 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:06,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 14:10:06,066 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-02-08 14:10:06,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:06,067 INFO L85 PathProgramCache]: Analyzing trace with hash 417135488, now seen corresponding path program 1 times [2025-02-08 14:10:06,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:06,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296458683] [2025-02-08 14:10:06,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:06,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:06,074 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 14:10:06,090 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 14:10:06,090 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:06,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:06,173 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 14:10:06,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:06,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296458683] [2025-02-08 14:10:06,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296458683] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:06,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:06,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:10:06,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907957056] [2025-02-08 14:10:06,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:06,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:10:06,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:06,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:10:06,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:10:06,178 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2025-02-08 14:10:06,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 34 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 14:10:06,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:06,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2025-02-08 14:10:06,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:06,358 INFO L124 PetriNetUnfolderBase]: 368/625 cut-off events. [2025-02-08 14:10:06,358 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 14:10:06,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1185 conditions, 625 events. 368/625 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 3205 event pairs, 96 based on Foata normal form. 0/262 useless extension candidates. Maximal degree in co-relation 1178. Up to 314 conditions per place. [2025-02-08 14:10:06,362 INFO L140 encePairwiseOnDemand]: 37/48 looper letters, 31 selfloop transitions, 9 changer transitions 0/52 dead transitions. [2025-02-08 14:10:06,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 52 transitions, 194 flow [2025-02-08 14:10:06,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:10:06,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:10:06,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2025-02-08 14:10:06,363 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-02-08 14:10:06,363 INFO L175 Difference]: Start difference. First operand has 39 places, 34 transitions, 75 flow. Second operand 3 states and 96 transitions. [2025-02-08 14:10:06,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 52 transitions, 194 flow [2025-02-08 14:10:06,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 52 transitions, 193 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:10:06,366 INFO L231 Difference]: Finished difference. Result has 42 places, 42 transitions, 146 flow [2025-02-08 14:10:06,366 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=42, PETRI_TRANSITIONS=42} [2025-02-08 14:10:06,366 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -5 predicate places. [2025-02-08 14:10:06,366 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 42 transitions, 146 flow [2025-02-08 14:10:06,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 14:10:06,367 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:06,367 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:06,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 14:10:06,367 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-02-08 14:10:06,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:06,367 INFO L85 PathProgramCache]: Analyzing trace with hash 417135490, now seen corresponding path program 1 times [2025-02-08 14:10:06,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:06,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256229096] [2025-02-08 14:10:06,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:06,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:06,377 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 14:10:06,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 14:10:06,389 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:06,389 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:06,463 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 14:10:06,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:06,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256229096] [2025-02-08 14:10:06,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256229096] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:06,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:06,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:10:06,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842730141] [2025-02-08 14:10:06,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:06,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:10:06,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:06,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:10:06,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:10:06,471 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2025-02-08 14:10:06,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 42 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 14:10:06,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:06,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2025-02-08 14:10:06,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:06,613 INFO L124 PetriNetUnfolderBase]: 411/801 cut-off events. [2025-02-08 14:10:06,614 INFO L125 PetriNetUnfolderBase]: For 257/257 co-relation queries the response was YES. [2025-02-08 14:10:06,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1901 conditions, 801 events. 411/801 cut-off events. For 257/257 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 5069 event pairs, 78 based on Foata normal form. 0/527 useless extension candidates. Maximal degree in co-relation 1891. Up to 410 conditions per place. [2025-02-08 14:10:06,621 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 49 selfloop transitions, 6 changer transitions 0/67 dead transitions. [2025-02-08 14:10:06,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 67 transitions, 355 flow [2025-02-08 14:10:06,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:10:06,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:10:06,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2025-02-08 14:10:06,622 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-02-08 14:10:06,623 INFO L175 Difference]: Start difference. First operand has 42 places, 42 transitions, 146 flow. Second operand 3 states and 96 transitions. [2025-02-08 14:10:06,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 67 transitions, 355 flow [2025-02-08 14:10:06,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 67 transitions, 323 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:10:06,629 INFO L231 Difference]: Finished difference. Result has 44 places, 47 transitions, 186 flow [2025-02-08 14:10:06,629 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=186, PETRI_PLACES=44, PETRI_TRANSITIONS=47} [2025-02-08 14:10:06,630 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2025-02-08 14:10:06,630 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 47 transitions, 186 flow [2025-02-08 14:10:06,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 14:10:06,630 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:06,630 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:06,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 14:10:06,630 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-02-08 14:10:06,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:06,631 INFO L85 PathProgramCache]: Analyzing trace with hash 417135491, now seen corresponding path program 1 times [2025-02-08 14:10:06,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:06,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132341354] [2025-02-08 14:10:06,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:06,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:06,636 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 14:10:06,641 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 14:10:06,641 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:06,641 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:06,713 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 14:10:06,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:06,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132341354] [2025-02-08 14:10:06,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132341354] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:06,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:06,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:10:06,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893977576] [2025-02-08 14:10:06,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:06,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:10:06,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:06,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:10:06,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:10:06,715 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2025-02-08 14:10:06,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 47 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 14:10:06,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:06,715 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2025-02-08 14:10:06,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:06,789 INFO L124 PetriNetUnfolderBase]: 196/400 cut-off events. [2025-02-08 14:10:06,789 INFO L125 PetriNetUnfolderBase]: For 315/315 co-relation queries the response was YES. [2025-02-08 14:10:06,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 944 conditions, 400 events. 196/400 cut-off events. For 315/315 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2211 event pairs, 108 based on Foata normal form. 22/283 useless extension candidates. Maximal degree in co-relation 932. Up to 312 conditions per place. [2025-02-08 14:10:06,792 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 24 selfloop transitions, 1 changer transitions 0/37 dead transitions. [2025-02-08 14:10:06,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 37 transitions, 184 flow [2025-02-08 14:10:06,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:10:06,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:10:06,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2025-02-08 14:10:06,795 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2025-02-08 14:10:06,795 INFO L175 Difference]: Start difference. First operand has 44 places, 47 transitions, 186 flow. Second operand 3 states and 76 transitions. [2025-02-08 14:10:06,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 37 transitions, 184 flow [2025-02-08 14:10:06,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 37 transitions, 176 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:10:06,796 INFO L231 Difference]: Finished difference. Result has 40 places, 37 transitions, 128 flow [2025-02-08 14:10:06,796 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=40, PETRI_TRANSITIONS=37} [2025-02-08 14:10:06,797 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -7 predicate places. [2025-02-08 14:10:06,797 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 37 transitions, 128 flow [2025-02-08 14:10:06,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 14:10:06,797 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:06,799 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:06,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 14:10:06,799 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-02-08 14:10:06,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:06,801 INFO L85 PathProgramCache]: Analyzing trace with hash 417135489, now seen corresponding path program 1 times [2025-02-08 14:10:06,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:06,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402354774] [2025-02-08 14:10:06,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:06,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:06,808 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 14:10:06,811 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 14:10:06,812 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:06,812 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:06,848 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 14:10:06,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:06,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402354774] [2025-02-08 14:10:06,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402354774] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:06,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:06,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:10:06,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653274472] [2025-02-08 14:10:06,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:06,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:10:06,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:06,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:10:06,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:10:06,855 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2025-02-08 14:10:06,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 37 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 14:10:06,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:06,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2025-02-08 14:10:06,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:06,910 INFO L124 PetriNetUnfolderBase]: 159/337 cut-off events. [2025-02-08 14:10:06,910 INFO L125 PetriNetUnfolderBase]: For 124/124 co-relation queries the response was YES. [2025-02-08 14:10:06,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 740 conditions, 337 events. 159/337 cut-off events. For 124/124 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1842 event pairs, 95 based on Foata normal form. 10/228 useless extension candidates. Maximal degree in co-relation 728. Up to 260 conditions per place. [2025-02-08 14:10:06,913 INFO L140 encePairwiseOnDemand]: 46/48 looper letters, 20 selfloop transitions, 1 changer transitions 0/33 dead transitions. [2025-02-08 14:10:06,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 33 transitions, 146 flow [2025-02-08 14:10:06,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:10:06,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:10:06,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2025-02-08 14:10:06,914 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5 [2025-02-08 14:10:06,914 INFO L175 Difference]: Start difference. First operand has 40 places, 37 transitions, 128 flow. Second operand 3 states and 72 transitions. [2025-02-08 14:10:06,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 33 transitions, 146 flow [2025-02-08 14:10:06,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 33 transitions, 145 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:10:06,915 INFO L231 Difference]: Finished difference. Result has 40 places, 33 transitions, 105 flow [2025-02-08 14:10:06,915 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=105, PETRI_PLACES=40, PETRI_TRANSITIONS=33} [2025-02-08 14:10:06,916 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -7 predicate places. [2025-02-08 14:10:06,916 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 33 transitions, 105 flow [2025-02-08 14:10:06,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 14:10:06,916 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:06,916 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:06,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 14:10:06,916 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-02-08 14:10:06,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:06,918 INFO L85 PathProgramCache]: Analyzing trace with hash -718959944, now seen corresponding path program 1 times [2025-02-08 14:10:06,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:06,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402194778] [2025-02-08 14:10:06,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:06,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:06,926 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:10:06,933 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:10:06,933 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:06,934 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:07,000 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 14:10:07,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:07,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402194778] [2025-02-08 14:10:07,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402194778] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:07,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:07,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:10:07,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200173513] [2025-02-08 14:10:07,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:07,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:10:07,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:07,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:10:07,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:10:07,007 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2025-02-08 14:10:07,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 105 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 14:10:07,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:07,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2025-02-08 14:10:07,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:07,103 INFO L124 PetriNetUnfolderBase]: 173/413 cut-off events. [2025-02-08 14:10:07,103 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2025-02-08 14:10:07,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 867 conditions, 413 events. 173/413 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2406 event pairs, 52 based on Foata normal form. 0/304 useless extension candidates. Maximal degree in co-relation 854. Up to 160 conditions per place. [2025-02-08 14:10:07,106 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 31 selfloop transitions, 4 changer transitions 0/47 dead transitions. [2025-02-08 14:10:07,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 47 transitions, 226 flow [2025-02-08 14:10:07,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:10:07,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:10:07,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2025-02-08 14:10:07,108 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2025-02-08 14:10:07,108 INFO L175 Difference]: Start difference. First operand has 40 places, 33 transitions, 105 flow. Second operand 3 states and 84 transitions. [2025-02-08 14:10:07,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 47 transitions, 226 flow [2025-02-08 14:10:07,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 47 transitions, 225 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:10:07,109 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 142 flow [2025-02-08 14:10:07,109 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2025-02-08 14:10:07,111 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -4 predicate places. [2025-02-08 14:10:07,111 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 142 flow [2025-02-08 14:10:07,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 14:10:07,111 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:07,111 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:07,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 14:10:07,111 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-02-08 14:10:07,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:07,114 INFO L85 PathProgramCache]: Analyzing trace with hash -718959949, now seen corresponding path program 1 times [2025-02-08 14:10:07,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:07,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015201933] [2025-02-08 14:10:07,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:07,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:07,120 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:10:07,124 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:10:07,124 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:07,124 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:07,153 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 14:10:07,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:07,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015201933] [2025-02-08 14:10:07,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015201933] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:10:07,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:10:07,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:10:07,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288249991] [2025-02-08 14:10:07,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:10:07,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:10:07,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:07,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:10:07,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:10:07,162 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2025-02-08 14:10:07,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 14:10:07,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:07,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2025-02-08 14:10:07,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:07,227 INFO L124 PetriNetUnfolderBase]: 137/319 cut-off events. [2025-02-08 14:10:07,227 INFO L125 PetriNetUnfolderBase]: For 298/298 co-relation queries the response was YES. [2025-02-08 14:10:07,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 750 conditions, 319 events. 137/319 cut-off events. For 298/298 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1863 event pairs, 107 based on Foata normal form. 12/232 useless extension candidates. Maximal degree in co-relation 734. Up to 242 conditions per place. [2025-02-08 14:10:07,229 INFO L140 encePairwiseOnDemand]: 46/48 looper letters, 19 selfloop transitions, 1 changer transitions 0/32 dead transitions. [2025-02-08 14:10:07,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 32 transitions, 154 flow [2025-02-08 14:10:07,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:10:07,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:10:07,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2025-02-08 14:10:07,235 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4930555555555556 [2025-02-08 14:10:07,235 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 142 flow. Second operand 3 states and 71 transitions. [2025-02-08 14:10:07,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 32 transitions, 154 flow [2025-02-08 14:10:07,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 32 transitions, 150 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:10:07,236 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 112 flow [2025-02-08 14:10:07,236 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2025-02-08 14:10:07,237 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -5 predicate places. [2025-02-08 14:10:07,237 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 112 flow [2025-02-08 14:10:07,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 14:10:07,237 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:07,237 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-02-08 14:10:07,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 14:10:07,237 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-02-08 14:10:07,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:07,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1511906382, now seen corresponding path program 1 times [2025-02-08 14:10:07,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:07,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922246246] [2025-02-08 14:10:07,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:07,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:07,248 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:10:07,255 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:10:07,255 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:07,255 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:07,328 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:10:07,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:07,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922246246] [2025-02-08 14:10:07,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922246246] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:10:07,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352463065] [2025-02-08 14:10:07,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:07,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:10:07,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:10:07,333 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:10:07,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 14:10:07,372 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:10:07,388 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:10:07,388 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:07,388 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:07,390 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:10:07,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:10:07,498 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:10:07,499 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:10:07,544 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:10:07,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352463065] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:10:07,544 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:10:07,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2025-02-08 14:10:07,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422664571] [2025-02-08 14:10:07,544 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:10:07,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 14:10:07,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:07,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 14:10:07,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-08 14:10:07,594 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 48 [2025-02-08 14:10:07,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 112 flow. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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 14:10:07,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:07,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 48 [2025-02-08 14:10:07,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:07,835 INFO L124 PetriNetUnfolderBase]: 530/1040 cut-off events. [2025-02-08 14:10:07,835 INFO L125 PetriNetUnfolderBase]: For 246/246 co-relation queries the response was YES. [2025-02-08 14:10:07,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2274 conditions, 1040 events. 530/1040 cut-off events. For 246/246 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 6007 event pairs, 111 based on Foata normal form. 36/921 useless extension candidates. Maximal degree in co-relation 2258. Up to 257 conditions per place. [2025-02-08 14:10:07,841 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 55 selfloop transitions, 5 changer transitions 4/72 dead transitions. [2025-02-08 14:10:07,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 72 transitions, 349 flow [2025-02-08 14:10:07,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:10:07,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:10:07,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 124 transitions. [2025-02-08 14:10:07,842 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4305555555555556 [2025-02-08 14:10:07,842 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 112 flow. Second operand 6 states and 124 transitions. [2025-02-08 14:10:07,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 72 transitions, 349 flow [2025-02-08 14:10:07,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 72 transitions, 343 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:10:07,844 INFO L231 Difference]: Finished difference. Result has 43 places, 28 transitions, 101 flow [2025-02-08 14:10:07,844 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=101, PETRI_PLACES=43, PETRI_TRANSITIONS=28} [2025-02-08 14:10:07,845 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -4 predicate places. [2025-02-08 14:10:07,845 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 28 transitions, 101 flow [2025-02-08 14:10:07,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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 14:10:07,845 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:10:07,845 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:07,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 14:10:08,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:10:08,051 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-02-08 14:10:08,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:10:08,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1715316655, now seen corresponding path program 1 times [2025-02-08 14:10:08,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:10:08,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343549482] [2025-02-08 14:10:08,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:08,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:10:08,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 14:10:08,067 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 14:10:08,067 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:08,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:08,141 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:10:08,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:10:08,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343549482] [2025-02-08 14:10:08,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343549482] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:10:08,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406227122] [2025-02-08 14:10:08,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:10:08,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:10:08,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:10:08,145 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:10:08,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 14:10:08,184 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 14:10:08,196 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 14:10:08,196 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:10:08,197 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:10:08,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:10:08,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:10:08,276 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:10:08,276 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:10:08,319 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:10:08,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406227122] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:10:08,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:10:08,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2025-02-08 14:10:08,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518262270] [2025-02-08 14:10:08,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:10:08,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 14:10:08,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:10:08,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 14:10:08,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-08 14:10:08,365 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 48 [2025-02-08 14:10:08,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 28 transitions, 101 flow. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 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 14:10:08,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:10:08,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 48 [2025-02-08 14:10:08,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:10:08,543 INFO L124 PetriNetUnfolderBase]: 594/1259 cut-off events. [2025-02-08 14:10:08,544 INFO L125 PetriNetUnfolderBase]: For 464/494 co-relation queries the response was YES. [2025-02-08 14:10:08,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2618 conditions, 1259 events. 594/1259 cut-off events. For 464/494 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 7655 event pairs, 147 based on Foata normal form. 0/1116 useless extension candidates. Maximal degree in co-relation 2601. Up to 292 conditions per place. [2025-02-08 14:10:08,550 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 0 selfloop transitions, 0 changer transitions 56/56 dead transitions. [2025-02-08 14:10:08,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 56 transitions, 288 flow [2025-02-08 14:10:08,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:10:08,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:10:08,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 103 transitions. [2025-02-08 14:10:08,552 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3576388888888889 [2025-02-08 14:10:08,552 INFO L175 Difference]: Start difference. First operand has 43 places, 28 transitions, 101 flow. Second operand 6 states and 103 transitions. [2025-02-08 14:10:08,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 56 transitions, 288 flow [2025-02-08 14:10:08,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 56 transitions, 260 flow, removed 8 selfloop flow, removed 4 redundant places. [2025-02-08 14:10:08,555 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2025-02-08 14:10:08,555 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2025-02-08 14:10:08,556 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -7 predicate places. [2025-02-08 14:10:08,557 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2025-02-08 14:10:08,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 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 14:10:08,560 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 42 remaining) [2025-02-08 14:10:08,560 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 42 remaining) [2025-02-08 14:10:08,560 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 42 remaining) [2025-02-08 14:10:08,560 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 42 remaining) [2025-02-08 14:10:08,560 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 42 remaining) [2025-02-08 14:10:08,560 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 42 remaining) [2025-02-08 14:10:08,560 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 42 remaining) [2025-02-08 14:10:08,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 42 remaining) [2025-02-08 14:10:08,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 42 remaining) [2025-02-08 14:10:08,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 42 remaining) [2025-02-08 14:10:08,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 42 remaining) [2025-02-08 14:10:08,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 42 remaining) [2025-02-08 14:10:08,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 42 remaining) [2025-02-08 14:10:08,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 42 remaining) [2025-02-08 14:10:08,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 42 remaining) [2025-02-08 14:10:08,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 42 remaining) [2025-02-08 14:10:08,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 42 remaining) [2025-02-08 14:10:08,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 42 remaining) [2025-02-08 14:10:08,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 42 remaining) [2025-02-08 14:10:08,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 42 remaining) [2025-02-08 14:10:08,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 42 remaining) [2025-02-08 14:10:08,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 42 remaining) [2025-02-08 14:10:08,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 42 remaining) [2025-02-08 14:10:08,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 42 remaining) [2025-02-08 14:10:08,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 42 remaining) [2025-02-08 14:10:08,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 42 remaining) [2025-02-08 14:10:08,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 42 remaining) [2025-02-08 14:10:08,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 42 remaining) [2025-02-08 14:10:08,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 42 remaining) [2025-02-08 14:10:08,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 42 remaining) [2025-02-08 14:10:08,562 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 42 remaining) [2025-02-08 14:10:08,562 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 42 remaining) [2025-02-08 14:10:08,562 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 42 remaining) [2025-02-08 14:10:08,562 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 42 remaining) [2025-02-08 14:10:08,562 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 42 remaining) [2025-02-08 14:10:08,562 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 42 remaining) [2025-02-08 14:10:08,562 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 42 remaining) [2025-02-08 14:10:08,562 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 42 remaining) [2025-02-08 14:10:08,562 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 42 remaining) [2025-02-08 14:10:08,562 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 42 remaining) [2025-02-08 14:10:08,562 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 42 remaining) [2025-02-08 14:10:08,562 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 42 remaining) [2025-02-08 14:10:08,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-08 14:10:08,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:10:08,763 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:10:08,769 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 14:10:08,769 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 14:10:08,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 02:10:08 BasicIcfg [2025-02-08 14:10:08,775 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 14:10:08,776 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:10:08,776 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:10:08,776 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:10:08,777 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:10:05" (3/4) ... [2025-02-08 14:10:08,778 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 14:10:08,780 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-08 14:10:08,780 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-08 14:10:08,786 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 50 nodes and edges [2025-02-08 14:10:08,786 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2025-02-08 14:10:08,787 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-02-08 14:10:08,787 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-02-08 14:10:08,862 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 14:10:08,862 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 14:10:08,862 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:10:08,863 INFO L158 Benchmark]: Toolchain (without parser) took 4827.82ms. Allocated memory is still 167.8MB. Free memory was 123.1MB in the beginning and 49.7MB in the end (delta: 73.3MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. [2025-02-08 14:10:08,863 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 201.3MB. Free memory is still 120.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:10:08,863 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.20ms. Allocated memory is still 167.8MB. Free memory was 122.7MB in the beginning and 111.3MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:10:08,863 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.57ms. Allocated memory is still 167.8MB. Free memory was 111.3MB in the beginning and 110.5MB in the end (delta: 860.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:10:08,864 INFO L158 Benchmark]: Boogie Preprocessor took 27.97ms. Allocated memory is still 167.8MB. Free memory was 110.1MB in the beginning and 109.1MB in the end (delta: 951.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:10:08,864 INFO L158 Benchmark]: IcfgBuilder took 693.25ms. Allocated memory is still 167.8MB. Free memory was 109.1MB in the beginning and 70.2MB in the end (delta: 38.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-08 14:10:08,864 INFO L158 Benchmark]: TraceAbstraction took 3767.52ms. Allocated memory is still 167.8MB. Free memory was 69.4MB in the beginning and 55.3MB in the end (delta: 14.1MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2025-02-08 14:10:08,864 INFO L158 Benchmark]: Witness Printer took 86.42ms. Allocated memory is still 167.8MB. Free memory was 55.3MB in the beginning and 49.7MB in the end (delta: 5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:10:08,866 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 201.3MB. Free memory is still 120.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 218.20ms. Allocated memory is still 167.8MB. Free memory was 122.7MB in the beginning and 111.3MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.57ms. Allocated memory is still 167.8MB. Free memory was 111.3MB in the beginning and 110.5MB in the end (delta: 860.1kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.97ms. Allocated memory is still 167.8MB. Free memory was 110.1MB in the beginning and 109.1MB in the end (delta: 951.0kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 693.25ms. Allocated memory is still 167.8MB. Free memory was 109.1MB in the beginning and 70.2MB in the end (delta: 38.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3767.52ms. Allocated memory is still 167.8MB. Free memory was 69.4MB in the beginning and 55.3MB in the end (delta: 14.1MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Witness Printer took 86.42ms. Allocated memory is still 167.8MB. Free memory was 55.3MB in the beginning and 49.7MB in the end (delta: 5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: 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: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: 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 5 procedures, 83 locations, 42 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: 3.6s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 414 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 330 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 476 IncrementalHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 4 mSDtfsCounter, 476 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=186occurred in iteration=4, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 133 ConstructedInterpolants, 0 QuantifiedInterpolants, 527 SizeOfPredicates, 4 NumberOfNonLiveVariables, 174 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 16/30 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 20 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 14:10:08,886 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE