./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-time-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-time-subst.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 55dce27fdc9c44ff408174badf0a943270d2adadc96357bb37463f058a6a7cee --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 06:39:13,764 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:39:13,818 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 06:39:13,825 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:39:13,825 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:39:13,845 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:39:13,846 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:39:13,846 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:39:13,846 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:39:13,846 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:39:13,847 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 06:39:13,847 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 06:39:13,847 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:39:13,848 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:39:13,848 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:39:13,848 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:39:13,848 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 06:39:13,848 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 06:39:13,848 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:39:13,849 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 06:39:13,849 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:39:13,849 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 06:39:13,849 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 06:39:13,849 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 06:39:13,849 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 06:39:13,849 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:39:13,849 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 06:39:13,849 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:39:13,849 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:39:13,849 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:39:13,849 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:39:13,849 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:39:13,850 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 06:39:13,850 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 06:39:13,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:39:13,850 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:39:13,850 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 06:39:13,850 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 06:39:13,850 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 06:39:13,850 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:39:13,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 06:39:13,851 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 06:39:13,851 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 06:39:13,851 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 06:39:13,851 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 06:39:13,851 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55dce27fdc9c44ff408174badf0a943270d2adadc96357bb37463f058a6a7cee [2025-03-09 06:39:14,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:39:14,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:39:14,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:39:14,100 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:39:14,101 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:39:14,101 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-time-subst.wvr.c [2025-03-09 06:39:15,207 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47cb7b446/d981590f1de643c99d2dd1a6815b2dbb/FLAGe1de5381d [2025-03-09 06:39:15,435 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:39:15,436 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-time-subst.wvr.c [2025-03-09 06:39:15,441 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47cb7b446/d981590f1de643c99d2dd1a6815b2dbb/FLAGe1de5381d [2025-03-09 06:39:15,451 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47cb7b446/d981590f1de643c99d2dd1a6815b2dbb [2025-03-09 06:39:15,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:39:15,454 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:39:15,455 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:39:15,455 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:39:15,458 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:39:15,458 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:39:15" (1/1) ... [2025-03-09 06:39:15,459 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b34278a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:15, skipping insertion in model container [2025-03-09 06:39:15,459 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:39:15" (1/1) ... [2025-03-09 06:39:15,469 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:39:15,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:39:15,580 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:39:15,593 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:39:15,603 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:39:15,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:15 WrapperNode [2025-03-09 06:39:15,603 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:39:15,604 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:39:15,604 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:39:15,604 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:39:15,608 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:15" (1/1) ... [2025-03-09 06:39:15,613 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:15" (1/1) ... [2025-03-09 06:39:15,637 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 12, calls inlined = 22, statements flattened = 293 [2025-03-09 06:39:15,642 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:39:15,642 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:39:15,642 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:39:15,642 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:39:15,649 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:15" (1/1) ... [2025-03-09 06:39:15,649 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:15" (1/1) ... [2025-03-09 06:39:15,652 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:15" (1/1) ... [2025-03-09 06:39:15,666 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]. [2025-03-09 06:39:15,670 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:15" (1/1) ... [2025-03-09 06:39:15,670 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:15" (1/1) ... [2025-03-09 06:39:15,678 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:15" (1/1) ... [2025-03-09 06:39:15,679 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:15" (1/1) ... [2025-03-09 06:39:15,680 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:15" (1/1) ... [2025-03-09 06:39:15,681 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:15" (1/1) ... [2025-03-09 06:39:15,682 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:39:15,685 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:39:15,685 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:39:15,685 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:39:15,686 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:15" (1/1) ... [2025-03-09 06:39:15,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:39:15,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:39:15,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-09 06:39:15,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-09 06:39:15,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 06:39:15,735 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-09 06:39:15,736 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-09 06:39:15,736 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-09 06:39:15,736 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-09 06:39:15,736 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-09 06:39:15,736 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-09 06:39:15,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 06:39:15,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-09 06:39:15,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-09 06:39:15,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:39:15,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:39:15,737 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 06:39:15,809 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:39:15,811 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:39:16,270 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 06:39:16,272 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:39:16,861 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:39:16,862 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:39:16,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:39:16 BoogieIcfgContainer [2025-03-09 06:39:16,862 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:39:16,864 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 06:39:16,864 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 06:39:16,867 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 06:39:16,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 06:39:15" (1/3) ... [2025-03-09 06:39:16,868 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b728ce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:39:16, skipping insertion in model container [2025-03-09 06:39:16,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:15" (2/3) ... [2025-03-09 06:39:16,868 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b728ce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:39:16, skipping insertion in model container [2025-03-09 06:39:16,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:39:16" (3/3) ... [2025-03-09 06:39:16,869 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-time-subst.wvr.c [2025-03-09 06:39:16,881 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 06:39:16,882 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-time-subst.wvr.c that has 4 procedures, 60 locations, 1 initial locations, 0 loop locations, and 36 error locations. [2025-03-09 06:39:16,883 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 06:39:17,085 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-03-09 06:39:17,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 59 transitions, 139 flow [2025-03-09 06:39:17,154 INFO L124 PetriNetUnfolderBase]: 0/56 cut-off events. [2025-03-09 06:39:17,156 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-09 06:39:17,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 56 events. 0/56 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 222 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-03-09 06:39:17,158 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 59 transitions, 139 flow [2025-03-09 06:39:17,163 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 54 transitions, 123 flow [2025-03-09 06:39:17,172 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:39:17,184 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;@48f8751, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:39:17,185 INFO L334 AbstractCegarLoop]: Starting to check reachability of 75 error locations. [2025-03-09 06:39:17,189 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 06:39:17,189 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2025-03-09 06:39:17,190 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:39:17,190 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:17,190 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-09 06:39:17,190 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2025-03-09 06:39:17,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:17,195 INFO L85 PathProgramCache]: Analyzing trace with hash 30620536, now seen corresponding path program 1 times [2025-03-09 06:39:17,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:17,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936993732] [2025-03-09 06:39:17,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:17,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:17,266 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 06:39:17,282 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 06:39:17,283 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:17,283 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:17,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:17,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:17,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936993732] [2025-03-09 06:39:17,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936993732] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:17,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:17,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 06:39:17,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677102499] [2025-03-09 06:39:17,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:17,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-09 06:39:17,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:17,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-09 06:39:17,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 06:39:17,384 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 59 [2025-03-09 06:39:17,386 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 54 transitions, 123 flow. Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:17,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:17,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 59 [2025-03-09 06:39:17,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:19,283 INFO L124 PetriNetUnfolderBase]: 6620/9800 cut-off events. [2025-03-09 06:39:19,283 INFO L125 PetriNetUnfolderBase]: For 166/166 co-relation queries the response was YES. [2025-03-09 06:39:19,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19882 conditions, 9800 events. 6620/9800 cut-off events. For 166/166 co-relation queries the response was YES. Maximal size of possible extension queue 1884. Compared 72913 event pairs, 6620 based on Foata normal form. 0/3428 useless extension candidates. Maximal degree in co-relation 19015. Up to 9680 conditions per place. [2025-03-09 06:39:19,338 INFO L140 encePairwiseOnDemand]: 47/59 looper letters, 39 selfloop transitions, 0 changer transitions 0/42 dead transitions. [2025-03-09 06:39:19,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 42 transitions, 177 flow [2025-03-09 06:39:19,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-09 06:39:19,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-09 06:39:19,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 63 transitions. [2025-03-09 06:39:19,348 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5338983050847458 [2025-03-09 06:39:19,350 INFO L175 Difference]: Start difference. First operand has 64 places, 54 transitions, 123 flow. Second operand 2 states and 63 transitions. [2025-03-09 06:39:19,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 42 transitions, 177 flow [2025-03-09 06:39:19,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 42 transitions, 168 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-09 06:39:19,391 INFO L231 Difference]: Finished difference. Result has 48 places, 42 transitions, 90 flow [2025-03-09 06:39:19,392 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=90, PETRI_PLACES=48, PETRI_TRANSITIONS=42} [2025-03-09 06:39:19,396 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, -16 predicate places. [2025-03-09 06:39:19,396 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 90 flow [2025-03-09 06:39:19,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:19,396 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:19,397 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-09 06:39:19,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 06:39:19,397 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2025-03-09 06:39:19,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:19,398 INFO L85 PathProgramCache]: Analyzing trace with hash 30620546, now seen corresponding path program 1 times [2025-03-09 06:39:19,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:19,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027250019] [2025-03-09 06:39:19,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:19,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:19,409 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 06:39:19,425 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 06:39:19,428 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:19,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:19,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:19,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:19,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027250019] [2025-03-09 06:39:19,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027250019] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:19,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:19,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 06:39:19,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049643936] [2025-03-09 06:39:19,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:19,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:39:19,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:19,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:39:19,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:39:19,591 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 59 [2025-03-09 06:39:19,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 42 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:19,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:19,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 59 [2025-03-09 06:39:19,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:20,752 INFO L124 PetriNetUnfolderBase]: 5448/8090 cut-off events. [2025-03-09 06:39:20,753 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2025-03-09 06:39:20,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16294 conditions, 8090 events. 5448/8090 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 1528. Compared 59168 event pairs, 5448 based on Foata normal form. 0/2940 useless extension candidates. Maximal degree in co-relation 16291. Up to 7990 conditions per place. [2025-03-09 06:39:20,802 INFO L140 encePairwiseOnDemand]: 56/59 looper letters, 36 selfloop transitions, 1 changer transitions 0/40 dead transitions. [2025-03-09 06:39:20,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 40 transitions, 160 flow [2025-03-09 06:39:20,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:39:20,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:39:20,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2025-03-09 06:39:20,805 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3220338983050847 [2025-03-09 06:39:20,805 INFO L175 Difference]: Start difference. First operand has 48 places, 42 transitions, 90 flow. Second operand 3 states and 57 transitions. [2025-03-09 06:39:20,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 40 transitions, 160 flow [2025-03-09 06:39:20,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 40 transitions, 160 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-09 06:39:20,807 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 88 flow [2025-03-09 06:39:20,809 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2025-03-09 06:39:20,810 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, -16 predicate places. [2025-03-09 06:39:20,810 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 88 flow [2025-03-09 06:39:20,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:20,810 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:20,810 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-09 06:39:20,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 06:39:20,811 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2025-03-09 06:39:20,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:20,811 INFO L85 PathProgramCache]: Analyzing trace with hash 30620547, now seen corresponding path program 1 times [2025-03-09 06:39:20,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:20,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130398947] [2025-03-09 06:39:20,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:20,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:20,823 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 06:39:20,829 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 06:39:20,832 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:20,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:20,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:20,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:20,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130398947] [2025-03-09 06:39:20,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130398947] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:20,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:20,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 06:39:20,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283827355] [2025-03-09 06:39:20,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:20,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:39:20,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:20,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:39:20,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:39:20,914 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 59 [2025-03-09 06:39:20,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:20,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:20,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 59 [2025-03-09 06:39:20,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:21,647 INFO L124 PetriNetUnfolderBase]: 4390/6544 cut-off events. [2025-03-09 06:39:21,647 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-03-09 06:39:21,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13184 conditions, 6544 events. 4390/6544 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 1210. Compared 46580 event pairs, 4390 based on Foata normal form. 0/2488 useless extension candidates. Maximal degree in co-relation 13180. Up to 6463 conditions per place. [2025-03-09 06:39:21,670 INFO L140 encePairwiseOnDemand]: 56/59 looper letters, 34 selfloop transitions, 1 changer transitions 0/38 dead transitions. [2025-03-09 06:39:21,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 38 transitions, 154 flow [2025-03-09 06:39:21,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:39:21,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:39:21,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2025-03-09 06:39:21,671 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3107344632768362 [2025-03-09 06:39:21,671 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 88 flow. Second operand 3 states and 55 transitions. [2025-03-09 06:39:21,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 38 transitions, 154 flow [2025-03-09 06:39:21,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 38 transitions, 153 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:39:21,672 INFO L231 Difference]: Finished difference. Result has 47 places, 38 transitions, 85 flow [2025-03-09 06:39:21,672 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=47, PETRI_TRANSITIONS=38} [2025-03-09 06:39:21,673 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, -17 predicate places. [2025-03-09 06:39:21,673 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 38 transitions, 85 flow [2025-03-09 06:39:21,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:21,674 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:21,674 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-09 06:39:21,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 06:39:21,674 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2025-03-09 06:39:21,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:21,674 INFO L85 PathProgramCache]: Analyzing trace with hash 30620537, now seen corresponding path program 1 times [2025-03-09 06:39:21,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:21,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796116290] [2025-03-09 06:39:21,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:21,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:21,680 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 06:39:21,685 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 06:39:21,686 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:21,686 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:21,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:21,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:21,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796116290] [2025-03-09 06:39:21,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796116290] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:21,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:21,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 06:39:21,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868286403] [2025-03-09 06:39:21,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:21,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:39:21,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:21,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:39:21,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:39:21,710 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 59 [2025-03-09 06:39:21,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 38 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:21,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:21,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 59 [2025-03-09 06:39:21,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:22,263 INFO L124 PetriNetUnfolderBase]: 3555/5328 cut-off events. [2025-03-09 06:39:22,263 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-03-09 06:39:22,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10743 conditions, 5328 events. 3555/5328 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 957. Compared 37068 event pairs, 3555 based on Foata normal form. 0/2125 useless extension candidates. Maximal degree in co-relation 10739. Up to 5256 conditions per place. [2025-03-09 06:39:22,284 INFO L140 encePairwiseOnDemand]: 56/59 looper letters, 32 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2025-03-09 06:39:22,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 36 transitions, 147 flow [2025-03-09 06:39:22,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:39:22,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:39:22,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 53 transitions. [2025-03-09 06:39:22,285 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2994350282485876 [2025-03-09 06:39:22,285 INFO L175 Difference]: Start difference. First operand has 47 places, 38 transitions, 85 flow. Second operand 3 states and 53 transitions. [2025-03-09 06:39:22,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 36 transitions, 147 flow [2025-03-09 06:39:22,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 36 transitions, 146 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:39:22,286 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 82 flow [2025-03-09 06:39:22,286 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, 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=82, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2025-03-09 06:39:22,287 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, -18 predicate places. [2025-03-09 06:39:22,287 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 82 flow [2025-03-09 06:39:22,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:22,287 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:22,287 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-09 06:39:22,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 06:39:22,287 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2025-03-09 06:39:22,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:22,288 INFO L85 PathProgramCache]: Analyzing trace with hash 30620538, now seen corresponding path program 1 times [2025-03-09 06:39:22,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:22,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307700418] [2025-03-09 06:39:22,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:22,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:22,294 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 06:39:22,296 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 06:39:22,296 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:22,296 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:22,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:22,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:22,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307700418] [2025-03-09 06:39:22,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307700418] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:22,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:22,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 06:39:22,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506890788] [2025-03-09 06:39:22,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:22,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:39:22,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:22,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:39:22,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:39:22,324 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 59 [2025-03-09 06:39:22,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:22,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:22,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 59 [2025-03-09 06:39:22,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:22,809 INFO L124 PetriNetUnfolderBase]: 2806/4234 cut-off events. [2025-03-09 06:39:22,809 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-03-09 06:39:22,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8546 conditions, 4234 events. 2806/4234 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 734. Compared 28791 event pairs, 2806 based on Foata normal form. 0/1788 useless extension candidates. Maximal degree in co-relation 8542. Up to 4171 conditions per place. [2025-03-09 06:39:22,821 INFO L140 encePairwiseOnDemand]: 56/59 looper letters, 30 selfloop transitions, 1 changer transitions 0/34 dead transitions. [2025-03-09 06:39:22,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 34 transitions, 140 flow [2025-03-09 06:39:22,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:39:22,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:39:22,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2025-03-09 06:39:22,822 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.288135593220339 [2025-03-09 06:39:22,822 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 82 flow. Second operand 3 states and 51 transitions. [2025-03-09 06:39:22,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 34 transitions, 140 flow [2025-03-09 06:39:22,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 34 transitions, 139 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:39:22,823 INFO L231 Difference]: Finished difference. Result has 45 places, 34 transitions, 79 flow [2025-03-09 06:39:22,823 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=43, 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=79, PETRI_PLACES=45, PETRI_TRANSITIONS=34} [2025-03-09 06:39:22,823 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, -19 predicate places. [2025-03-09 06:39:22,823 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 34 transitions, 79 flow [2025-03-09 06:39:22,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:22,823 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:22,823 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-09 06:39:22,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 06:39:22,823 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2025-03-09 06:39:22,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:22,824 INFO L85 PathProgramCache]: Analyzing trace with hash 30620540, now seen corresponding path program 1 times [2025-03-09 06:39:22,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:22,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391395919] [2025-03-09 06:39:22,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:22,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:22,830 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 06:39:22,833 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 06:39:22,833 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:22,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:22,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:22,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:22,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391395919] [2025-03-09 06:39:22,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391395919] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:22,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:22,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 06:39:22,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85877932] [2025-03-09 06:39:22,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:22,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:39:22,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:22,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:39:22,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:39:22,883 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 59 [2025-03-09 06:39:22,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 34 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:22,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:22,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 59 [2025-03-09 06:39:22,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:23,397 INFO L124 PetriNetUnfolderBase]: 2122/3224 cut-off events. [2025-03-09 06:39:23,397 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-03-09 06:39:23,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6511 conditions, 3224 events. 2122/3224 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 21221 event pairs, 2122 based on Foata normal form. 0/1456 useless extension candidates. Maximal degree in co-relation 6507. Up to 3176 conditions per place. [2025-03-09 06:39:23,407 INFO L140 encePairwiseOnDemand]: 56/59 looper letters, 28 selfloop transitions, 1 changer transitions 0/32 dead transitions. [2025-03-09 06:39:23,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 32 transitions, 133 flow [2025-03-09 06:39:23,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:39:23,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:39:23,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 49 transitions. [2025-03-09 06:39:23,408 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2768361581920904 [2025-03-09 06:39:23,408 INFO L175 Difference]: Start difference. First operand has 45 places, 34 transitions, 79 flow. Second operand 3 states and 49 transitions. [2025-03-09 06:39:23,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 32 transitions, 133 flow [2025-03-09 06:39:23,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 32 transitions, 132 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:39:23,409 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 76 flow [2025-03-09 06:39:23,409 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=42, 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=76, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2025-03-09 06:39:23,410 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, -20 predicate places. [2025-03-09 06:39:23,410 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 76 flow [2025-03-09 06:39:23,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:23,410 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:23,410 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-09 06:39:23,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 06:39:23,410 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2025-03-09 06:39:23,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:23,410 INFO L85 PathProgramCache]: Analyzing trace with hash 30620541, now seen corresponding path program 1 times [2025-03-09 06:39:23,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:23,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285835919] [2025-03-09 06:39:23,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:23,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:23,417 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 06:39:23,421 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 06:39:23,421 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:23,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:23,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:23,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:23,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285835919] [2025-03-09 06:39:23,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285835919] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:23,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:23,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 06:39:23,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844552246] [2025-03-09 06:39:23,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:23,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:39:23,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:23,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:39:23,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:39:23,470 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 59 [2025-03-09 06:39:23,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:23,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:23,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 59 [2025-03-09 06:39:23,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:23,899 INFO L124 PetriNetUnfolderBase]: 1532/2350 cut-off events. [2025-03-09 06:39:23,899 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-03-09 06:39:23,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4750 conditions, 2350 events. 1532/2350 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 14797 event pairs, 1532 based on Foata normal form. 0/1156 useless extension candidates. Maximal degree in co-relation 4746. Up to 2315 conditions per place. [2025-03-09 06:39:23,906 INFO L140 encePairwiseOnDemand]: 56/59 looper letters, 26 selfloop transitions, 1 changer transitions 0/30 dead transitions. [2025-03-09 06:39:23,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 30 transitions, 126 flow [2025-03-09 06:39:23,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:39:23,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:39:23,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 47 transitions. [2025-03-09 06:39:23,907 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2655367231638418 [2025-03-09 06:39:23,907 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 76 flow. Second operand 3 states and 47 transitions. [2025-03-09 06:39:23,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 30 transitions, 126 flow [2025-03-09 06:39:23,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 30 transitions, 125 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:39:23,908 INFO L231 Difference]: Finished difference. Result has 43 places, 30 transitions, 73 flow [2025-03-09 06:39:23,908 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=73, PETRI_PLACES=43, PETRI_TRANSITIONS=30} [2025-03-09 06:39:23,908 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, -21 predicate places. [2025-03-09 06:39:23,908 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 30 transitions, 73 flow [2025-03-09 06:39:23,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:23,908 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:23,908 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-09 06:39:23,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 06:39:23,909 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2025-03-09 06:39:23,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:23,909 INFO L85 PathProgramCache]: Analyzing trace with hash 30620543, now seen corresponding path program 1 times [2025-03-09 06:39:23,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:23,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229094879] [2025-03-09 06:39:23,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:23,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:23,914 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 06:39:23,916 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 06:39:23,917 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:23,917 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:23,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:23,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:23,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229094879] [2025-03-09 06:39:23,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229094879] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:23,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:23,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 06:39:23,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416188694] [2025-03-09 06:39:23,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:23,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:39:23,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:23,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:39:23,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:39:23,937 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 59 [2025-03-09 06:39:23,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 30 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:23,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:23,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 59 [2025-03-09 06:39:23,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:24,146 INFO L124 PetriNetUnfolderBase]: 1089/1694 cut-off events. [2025-03-09 06:39:24,146 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-03-09 06:39:24,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3431 conditions, 1694 events. 1089/1694 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 10345 event pairs, 1089 based on Foata normal form. 0/921 useless extension candidates. Maximal degree in co-relation 3427. Up to 1666 conditions per place. [2025-03-09 06:39:24,151 INFO L140 encePairwiseOnDemand]: 56/59 looper letters, 24 selfloop transitions, 1 changer transitions 0/28 dead transitions. [2025-03-09 06:39:24,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 28 transitions, 119 flow [2025-03-09 06:39:24,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:39:24,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:39:24,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 45 transitions. [2025-03-09 06:39:24,153 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2542372881355932 [2025-03-09 06:39:24,153 INFO L175 Difference]: Start difference. First operand has 43 places, 30 transitions, 73 flow. Second operand 3 states and 45 transitions. [2025-03-09 06:39:24,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 28 transitions, 119 flow [2025-03-09 06:39:24,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 28 transitions, 118 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:39:24,153 INFO L231 Difference]: Finished difference. Result has 42 places, 28 transitions, 70 flow [2025-03-09 06:39:24,153 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=42, PETRI_TRANSITIONS=28} [2025-03-09 06:39:24,154 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, -22 predicate places. [2025-03-09 06:39:24,154 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 28 transitions, 70 flow [2025-03-09 06:39:24,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:24,154 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:24,154 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-09 06:39:24,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-09 06:39:24,154 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2025-03-09 06:39:24,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:24,155 INFO L85 PathProgramCache]: Analyzing trace with hash 30620544, now seen corresponding path program 1 times [2025-03-09 06:39:24,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:24,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305506495] [2025-03-09 06:39:24,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:24,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:24,160 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 06:39:24,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 06:39:24,164 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:24,164 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:24,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:24,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:24,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305506495] [2025-03-09 06:39:24,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305506495] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:24,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:24,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 06:39:24,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996314866] [2025-03-09 06:39:24,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:24,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:39:24,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:24,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:39:24,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:39:24,184 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 59 [2025-03-09 06:39:24,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 28 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:24,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:24,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 59 [2025-03-09 06:39:24,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:24,339 INFO L124 PetriNetUnfolderBase]: 712/1132 cut-off events. [2025-03-09 06:39:24,340 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-03-09 06:39:24,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2300 conditions, 1132 events. 712/1132 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 6450 event pairs, 712 based on Foata normal form. 0/708 useless extension candidates. Maximal degree in co-relation 2296. Up to 1111 conditions per place. [2025-03-09 06:39:24,342 INFO L140 encePairwiseOnDemand]: 56/59 looper letters, 22 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2025-03-09 06:39:24,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 26 transitions, 112 flow [2025-03-09 06:39:24,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:39:24,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:39:24,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2025-03-09 06:39:24,344 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.24293785310734464 [2025-03-09 06:39:24,344 INFO L175 Difference]: Start difference. First operand has 42 places, 28 transitions, 70 flow. Second operand 3 states and 43 transitions. [2025-03-09 06:39:24,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 26 transitions, 112 flow [2025-03-09 06:39:24,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 26 transitions, 111 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:39:24,344 INFO L231 Difference]: Finished difference. Result has 41 places, 26 transitions, 67 flow [2025-03-09 06:39:24,344 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=41, PETRI_TRANSITIONS=26} [2025-03-09 06:39:24,345 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, -23 predicate places. [2025-03-09 06:39:24,345 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 26 transitions, 67 flow [2025-03-09 06:39:24,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:24,345 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:24,345 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-09 06:39:24,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-09 06:39:24,345 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2025-03-09 06:39:24,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:24,346 INFO L85 PathProgramCache]: Analyzing trace with hash -638448750, now seen corresponding path program 1 times [2025-03-09 06:39:24,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:24,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121986944] [2025-03-09 06:39:24,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:24,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:24,350 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:39:24,352 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:39:24,352 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:24,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:24,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:24,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:24,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121986944] [2025-03-09 06:39:24,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121986944] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:24,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:24,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 06:39:24,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956154937] [2025-03-09 06:39:24,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:24,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:39:24,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:24,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:39:24,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:39:24,367 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 59 [2025-03-09 06:39:24,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 26 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:24,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:24,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 59 [2025-03-09 06:39:24,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:24,471 INFO L124 PetriNetUnfolderBase]: 520/839 cut-off events. [2025-03-09 06:39:24,472 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-09 06:39:24,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1712 conditions, 839 events. 520/839 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 4518 event pairs, 520 based on Foata normal form. 0/562 useless extension candidates. Maximal degree in co-relation 1708. Up to 821 conditions per place. [2025-03-09 06:39:24,474 INFO L140 encePairwiseOnDemand]: 56/59 looper letters, 20 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2025-03-09 06:39:24,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 24 transitions, 105 flow [2025-03-09 06:39:24,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:39:24,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:39:24,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 41 transitions. [2025-03-09 06:39:24,475 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.23163841807909605 [2025-03-09 06:39:24,475 INFO L175 Difference]: Start difference. First operand has 41 places, 26 transitions, 67 flow. Second operand 3 states and 41 transitions. [2025-03-09 06:39:24,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 24 transitions, 105 flow [2025-03-09 06:39:24,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 24 transitions, 104 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:39:24,476 INFO L231 Difference]: Finished difference. Result has 40 places, 24 transitions, 64 flow [2025-03-09 06:39:24,476 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=40, PETRI_TRANSITIONS=24} [2025-03-09 06:39:24,477 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, -24 predicate places. [2025-03-09 06:39:24,477 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 24 transitions, 64 flow [2025-03-09 06:39:24,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:24,477 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:24,477 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-09 06:39:24,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-09 06:39:24,477 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2025-03-09 06:39:24,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:24,478 INFO L85 PathProgramCache]: Analyzing trace with hash -638448749, now seen corresponding path program 1 times [2025-03-09 06:39:24,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:24,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768575907] [2025-03-09 06:39:24,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:24,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:24,482 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:39:24,485 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:39:24,485 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:24,485 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:24,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:24,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:24,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768575907] [2025-03-09 06:39:24,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768575907] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:24,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:24,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 06:39:24,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63719195] [2025-03-09 06:39:24,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:24,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:39:24,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:24,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:39:24,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:39:24,503 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 59 [2025-03-09 06:39:24,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 24 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:24,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:24,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 59 [2025-03-09 06:39:24,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:24,584 INFO L124 PetriNetUnfolderBase]: 358/590 cut-off events. [2025-03-09 06:39:24,584 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-03-09 06:39:24,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1212 conditions, 590 events. 358/590 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 2939 event pairs, 358 based on Foata normal form. 0/432 useless extension candidates. Maximal degree in co-relation 1208. Up to 575 conditions per place. [2025-03-09 06:39:24,586 INFO L140 encePairwiseOnDemand]: 56/59 looper letters, 18 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2025-03-09 06:39:24,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 22 transitions, 98 flow [2025-03-09 06:39:24,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:39:24,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:39:24,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 39 transitions. [2025-03-09 06:39:24,587 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.22033898305084745 [2025-03-09 06:39:24,587 INFO L175 Difference]: Start difference. First operand has 40 places, 24 transitions, 64 flow. Second operand 3 states and 39 transitions. [2025-03-09 06:39:24,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 22 transitions, 98 flow [2025-03-09 06:39:24,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 22 transitions, 97 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:39:24,588 INFO L231 Difference]: Finished difference. Result has 39 places, 22 transitions, 61 flow [2025-03-09 06:39:24,588 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=61, PETRI_PLACES=39, PETRI_TRANSITIONS=22} [2025-03-09 06:39:24,589 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, -25 predicate places. [2025-03-09 06:39:24,589 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 22 transitions, 61 flow [2025-03-09 06:39:24,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:24,590 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:24,590 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-09 06:39:24,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-09 06:39:24,590 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2025-03-09 06:39:24,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:24,590 INFO L85 PathProgramCache]: Analyzing trace with hash -638448756, now seen corresponding path program 1 times [2025-03-09 06:39:24,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:24,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230001558] [2025-03-09 06:39:24,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:24,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:24,594 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:39:24,596 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:39:24,596 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:24,596 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:24,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:24,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:24,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230001558] [2025-03-09 06:39:24,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230001558] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:24,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:24,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 06:39:24,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625677508] [2025-03-09 06:39:24,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:24,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:39:24,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:24,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:39:24,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:39:24,609 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 59 [2025-03-09 06:39:24,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 22 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:24,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:24,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 59 [2025-03-09 06:39:24,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:24,672 INFO L124 PetriNetUnfolderBase]: 226/385 cut-off events. [2025-03-09 06:39:24,672 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-09 06:39:24,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 800 conditions, 385 events. 226/385 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1738 event pairs, 226 based on Foata normal form. 0/318 useless extension candidates. Maximal degree in co-relation 796. Up to 373 conditions per place. [2025-03-09 06:39:24,674 INFO L140 encePairwiseOnDemand]: 56/59 looper letters, 16 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2025-03-09 06:39:24,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 20 transitions, 91 flow [2025-03-09 06:39:24,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:39:24,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:39:24,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 37 transitions. [2025-03-09 06:39:24,675 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.20903954802259886 [2025-03-09 06:39:24,675 INFO L175 Difference]: Start difference. First operand has 39 places, 22 transitions, 61 flow. Second operand 3 states and 37 transitions. [2025-03-09 06:39:24,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 20 transitions, 91 flow [2025-03-09 06:39:24,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 20 transitions, 90 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:39:24,675 INFO L231 Difference]: Finished difference. Result has 38 places, 20 transitions, 58 flow [2025-03-09 06:39:24,676 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=58, PETRI_PLACES=38, PETRI_TRANSITIONS=20} [2025-03-09 06:39:24,676 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, -26 predicate places. [2025-03-09 06:39:24,676 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 20 transitions, 58 flow [2025-03-09 06:39:24,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:24,676 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:24,676 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-09 06:39:24,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-09 06:39:24,677 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2025-03-09 06:39:24,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:24,677 INFO L85 PathProgramCache]: Analyzing trace with hash -638448755, now seen corresponding path program 1 times [2025-03-09 06:39:24,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:24,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371045849] [2025-03-09 06:39:24,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:24,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:24,683 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:39:24,686 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:39:24,688 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:24,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:24,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:24,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:24,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371045849] [2025-03-09 06:39:24,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371045849] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:24,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:24,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 06:39:24,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116520746] [2025-03-09 06:39:24,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:24,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:39:24,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:24,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:39:24,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:39:24,715 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 59 [2025-03-09 06:39:24,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 20 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:24,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:24,715 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 59 [2025-03-09 06:39:24,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:24,761 INFO L124 PetriNetUnfolderBase]: 124/224 cut-off events. [2025-03-09 06:39:24,761 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-09 06:39:24,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 476 conditions, 224 events. 124/224 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 838 event pairs, 124 based on Foata normal form. 0/220 useless extension candidates. Maximal degree in co-relation 472. Up to 215 conditions per place. [2025-03-09 06:39:24,762 INFO L140 encePairwiseOnDemand]: 56/59 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2025-03-09 06:39:24,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 18 transitions, 84 flow [2025-03-09 06:39:24,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:39:24,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:39:24,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2025-03-09 06:39:24,764 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.1977401129943503 [2025-03-09 06:39:24,764 INFO L175 Difference]: Start difference. First operand has 38 places, 20 transitions, 58 flow. Second operand 3 states and 35 transitions. [2025-03-09 06:39:24,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 18 transitions, 84 flow [2025-03-09 06:39:24,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 18 transitions, 83 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:39:24,764 INFO L231 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2025-03-09 06:39:24,765 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2025-03-09 06:39:24,766 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, -27 predicate places. [2025-03-09 06:39:24,766 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2025-03-09 06:39:24,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:24,769 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 75 remaining) [2025-03-09 06:39:24,770 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 75 remaining) [2025-03-09 06:39:24,771 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 75 remaining) [2025-03-09 06:39:24,771 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 75 remaining) [2025-03-09 06:39:24,771 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 75 remaining) [2025-03-09 06:39:24,771 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 75 remaining) [2025-03-09 06:39:24,771 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 75 remaining) [2025-03-09 06:39:24,771 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 75 remaining) [2025-03-09 06:39:24,771 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 75 remaining) [2025-03-09 06:39:24,771 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 75 remaining) [2025-03-09 06:39:24,771 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 75 remaining) [2025-03-09 06:39:24,771 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 75 remaining) [2025-03-09 06:39:24,771 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 75 remaining) [2025-03-09 06:39:24,771 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 75 remaining) [2025-03-09 06:39:24,771 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 75 remaining) [2025-03-09 06:39:24,772 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 75 remaining) [2025-03-09 06:39:24,772 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 75 remaining) [2025-03-09 06:39:24,772 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 75 remaining) [2025-03-09 06:39:24,772 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 75 remaining) [2025-03-09 06:39:24,772 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 75 remaining) [2025-03-09 06:39:24,772 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 75 remaining) [2025-03-09 06:39:24,772 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 75 remaining) [2025-03-09 06:39:24,772 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 75 remaining) [2025-03-09 06:39:24,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 75 remaining) [2025-03-09 06:39:24,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 75 remaining) [2025-03-09 06:39:24,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 75 remaining) [2025-03-09 06:39:24,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 75 remaining) [2025-03-09 06:39:24,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 75 remaining) [2025-03-09 06:39:24,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 75 remaining) [2025-03-09 06:39:24,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 75 remaining) [2025-03-09 06:39:24,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 75 remaining) [2025-03-09 06:39:24,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 75 remaining) [2025-03-09 06:39:24,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 75 remaining) [2025-03-09 06:39:24,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 75 remaining) [2025-03-09 06:39:24,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 75 remaining) [2025-03-09 06:39:24,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 75 remaining) [2025-03-09 06:39:24,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 75 remaining) [2025-03-09 06:39:24,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 75 remaining) [2025-03-09 06:39:24,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 75 remaining) [2025-03-09 06:39:24,773 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 75 remaining) [2025-03-09 06:39:24,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-09 06:39:24,773 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:24,777 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-09 06:39:24,777 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 06:39:24,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 06:39:24 BasicIcfg [2025-03-09 06:39:24,783 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 06:39:24,783 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 06:39:24,783 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 06:39:24,783 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 06:39:24,784 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:39:16" (3/4) ... [2025-03-09 06:39:24,785 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-09 06:39:24,787 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-09 06:39:24,787 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-09 06:39:24,787 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-03-09 06:39:24,790 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 57 nodes and edges [2025-03-09 06:39:24,790 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2025-03-09 06:39:24,791 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2025-03-09 06:39:24,791 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-09 06:39:24,791 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-09 06:39:24,848 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 06:39:24,848 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 06:39:24,848 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 06:39:24,849 INFO L158 Benchmark]: Toolchain (without parser) took 9394.54ms. Allocated memory was 142.6MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 109.5MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 476.3MB. Max. memory is 16.1GB. [2025-03-09 06:39:24,849 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:39:24,849 INFO L158 Benchmark]: CACSL2BoogieTranslator took 148.30ms. Allocated memory is still 142.6MB. Free memory was 109.5MB in the beginning and 98.0MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:39:24,849 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.89ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 95.6MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:39:24,849 INFO L158 Benchmark]: Boogie Preprocessor took 42.26ms. Allocated memory is still 142.6MB. Free memory was 95.6MB in the beginning and 93.6MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:39:24,849 INFO L158 Benchmark]: IcfgBuilder took 1177.47ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 57.3MB in the end (delta: 36.4MB). Peak memory consumption was 67.8MB. Max. memory is 16.1GB. [2025-03-09 06:39:24,849 INFO L158 Benchmark]: TraceAbstraction took 7918.75ms. Allocated memory was 142.6MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 57.3MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 421.6MB. Max. memory is 16.1GB. [2025-03-09 06:39:24,850 INFO L158 Benchmark]: Witness Printer took 65.15ms. Allocated memory is still 2.0GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:39:24,850 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 148.30ms. Allocated memory is still 142.6MB. Free memory was 109.5MB in the beginning and 98.0MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.89ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 95.6MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.26ms. Allocated memory is still 142.6MB. Free memory was 95.6MB in the beginning and 93.6MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 1177.47ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 57.3MB in the end (delta: 36.4MB). Peak memory consumption was 67.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7918.75ms. Allocated memory was 142.6MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 57.3MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 421.6MB. Max. memory is 16.1GB. * Witness Printer took 65.15ms. Allocated memory is still 2.0GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 111 locations, 110 edges, 75 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: 7.7s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 280 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 280 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 351 IncrementalHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 0 mSDtfsCounter, 351 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=123occurred in iteration=0, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 179 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 36 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-09 06:39:24,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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