./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread/triangular-longer-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread/triangular-longer-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 647bb9f2bc4e44b8324ce986a0773d034e56e6ec110a9fd5233f5c8c0dbbeb10 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 06:22:12,868 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:22:12,924 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 06:22:12,930 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:22:12,930 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:22:12,949 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:22:12,951 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:22:12,951 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:22:12,951 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:22:12,952 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:22:12,952 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 06:22:12,952 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 06:22:12,953 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:22:12,953 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:22:12,953 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:22:12,953 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:22:12,953 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 06:22:12,953 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 06:22:12,953 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:22:12,954 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 06:22:12,954 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:22:12,954 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 06:22:12,954 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 06:22:12,954 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 06:22:12,954 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 06:22:12,954 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:22:12,954 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 06:22:12,954 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:22:12,954 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:22:12,954 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:22:12,955 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:22:12,955 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:22:12,955 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 06:22:12,955 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 06:22:12,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:22:12,955 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:22:12,955 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 06:22:12,955 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 06:22:12,955 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 06:22:12,955 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:22:12,956 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 06:22:12,956 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 06:22:12,956 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 06:22:12,956 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 06:22:12,956 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 06:22:12,956 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 -> 647bb9f2bc4e44b8324ce986a0773d034e56e6ec110a9fd5233f5c8c0dbbeb10 [2025-03-09 06:22:13,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:22:13,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:22:13,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:22:13,175 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:22:13,175 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:22:13,177 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/triangular-longer-2.i [2025-03-09 06:22:14,319 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b03c6cf1/242efb4b736a474c9b61e39c62b19889/FLAGf7455e4e2 [2025-03-09 06:22:14,608 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:22:14,608 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/triangular-longer-2.i [2025-03-09 06:22:14,623 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b03c6cf1/242efb4b736a474c9b61e39c62b19889/FLAGf7455e4e2 [2025-03-09 06:22:14,637 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b03c6cf1/242efb4b736a474c9b61e39c62b19889 [2025-03-09 06:22:14,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:22:14,641 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:22:14,642 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:22:14,642 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:22:14,645 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:22:14,646 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:22:14" (1/1) ... [2025-03-09 06:22:14,647 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fb27fa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:22:14, skipping insertion in model container [2025-03-09 06:22:14,648 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:22:14" (1/1) ... [2025-03-09 06:22:14,675 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:22:14,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:22:14,871 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:22:14,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:22:14,918 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:22:14,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:22:14 WrapperNode [2025-03-09 06:22:14,919 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:22:14,919 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:22:14,920 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:22:14,920 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:22:14,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:22:14" (1/1) ... [2025-03-09 06:22:14,930 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:22:14" (1/1) ... [2025-03-09 06:22:14,944 INFO L138 Inliner]: procedures = 168, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2025-03-09 06:22:14,945 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:22:14,945 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:22:14,946 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:22:14,946 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:22:14,950 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:22:14" (1/1) ... [2025-03-09 06:22:14,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:22:14" (1/1) ... [2025-03-09 06:22:14,952 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:22:14" (1/1) ... [2025-03-09 06:22:14,958 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 06:22:14,959 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:22:14" (1/1) ... [2025-03-09 06:22:14,959 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:22:14" (1/1) ... [2025-03-09 06:22:14,963 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:22:14" (1/1) ... [2025-03-09 06:22:14,964 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:22:14" (1/1) ... [2025-03-09 06:22:14,965 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:22:14" (1/1) ... [2025-03-09 06:22:14,965 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:22:14" (1/1) ... [2025-03-09 06:22:14,966 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:22:14,967 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:22:14,967 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:22:14,967 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:22:14,968 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:22:14" (1/1) ... [2025-03-09 06:22:14,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:22:14,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:22:14,990 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 06:22:14,992 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 06:22:15,009 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2025-03-09 06:22:15,009 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2025-03-09 06:22:15,009 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2025-03-09 06:22:15,009 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2025-03-09 06:22:15,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-09 06:22:15,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 06:22:15,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 06:22:15,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-09 06:22:15,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:22:15,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:22:15,010 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 06:22:15,098 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:22:15,100 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:22:15,241 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 06:22:15,241 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:22:15,312 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:22:15,312 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:22:15,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:22:15 BoogieIcfgContainer [2025-03-09 06:22:15,313 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:22:15,318 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 06:22:15,318 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 06:22:15,322 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 06:22:15,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 06:22:14" (1/3) ... [2025-03-09 06:22:15,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a65dfd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:22:15, skipping insertion in model container [2025-03-09 06:22:15,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:22:14" (2/3) ... [2025-03-09 06:22:15,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a65dfd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:22:15, skipping insertion in model container [2025-03-09 06:22:15,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:22:15" (3/3) ... [2025-03-09 06:22:15,324 INFO L128 eAbstractionObserver]: Analyzing ICFG triangular-longer-2.i [2025-03-09 06:22:15,335 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 06:22:15,337 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG triangular-longer-2.i that has 3 procedures, 31 locations, 1 initial locations, 2 loop locations, and 8 error locations. [2025-03-09 06:22:15,337 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 06:22:15,375 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-09 06:22:15,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 32 transitions, 72 flow [2025-03-09 06:22:15,419 INFO L124 PetriNetUnfolderBase]: 2/30 cut-off events. [2025-03-09 06:22:15,422 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:22:15,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 30 events. 2/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 76 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2025-03-09 06:22:15,424 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 32 transitions, 72 flow [2025-03-09 06:22:15,427 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 30 transitions, 66 flow [2025-03-09 06:22:15,432 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:22:15,442 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;@3c53bd57, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:22:15,442 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2025-03-09 06:22:15,451 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 06:22:15,452 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2025-03-09 06:22:15,453 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:22:15,453 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:22:15,454 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-03-09 06:22:15,455 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-09 06:22:15,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:22:15,459 INFO L85 PathProgramCache]: Analyzing trace with hash 185325867, now seen corresponding path program 1 times [2025-03-09 06:22:15,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:22:15,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638936648] [2025-03-09 06:22:15,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:22:15,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:22:15,524 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:22:15,535 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:22:15,536 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:22:15,536 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:22:15,606 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 06:22:15,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:22:15,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638936648] [2025-03-09 06:22:15,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638936648] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:22:15,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:22:15,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 06:22:15,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731257535] [2025-03-09 06:22:15,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:22:15,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:22:15,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:22:15,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:22:15,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:22:15,634 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2025-03-09 06:22:15,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 06:22:15,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:22:15,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2025-03-09 06:22:15,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:22:15,835 INFO L124 PetriNetUnfolderBase]: 510/941 cut-off events. [2025-03-09 06:22:15,835 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-09 06:22:15,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1758 conditions, 941 events. 510/941 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4953 event pairs, 208 based on Foata normal form. 0/715 useless extension candidates. Maximal degree in co-relation 1748. Up to 421 conditions per place. [2025-03-09 06:22:15,844 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 31 selfloop transitions, 3 changer transitions 0/44 dead transitions. [2025-03-09 06:22:15,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 44 transitions, 162 flow [2025-03-09 06:22:15,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:22:15,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:22:15,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2025-03-09 06:22:15,853 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7395833333333334 [2025-03-09 06:22:15,855 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 66 flow. Second operand 3 states and 71 transitions. [2025-03-09 06:22:15,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 44 transitions, 162 flow [2025-03-09 06:22:15,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 44 transitions, 160 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:22:15,861 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 86 flow [2025-03-09 06:22:15,863 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=37, PETRI_TRANSITIONS=32} [2025-03-09 06:22:15,865 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 2 predicate places. [2025-03-09 06:22:15,866 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 86 flow [2025-03-09 06:22:15,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 06:22:15,866 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:22:15,867 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-03-09 06:22:15,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 06:22:15,867 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-09 06:22:15,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:22:15,868 INFO L85 PathProgramCache]: Analyzing trace with hash 185325868, now seen corresponding path program 1 times [2025-03-09 06:22:15,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:22:15,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894362348] [2025-03-09 06:22:15,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:22:15,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:22:15,879 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:22:15,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:22:15,885 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:22:15,885 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:22:15,921 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 06:22:15,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:22:15,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894362348] [2025-03-09 06:22:15,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894362348] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:22:15,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:22:15,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 06:22:15,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506775283] [2025-03-09 06:22:15,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:22:15,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:22:15,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:22:15,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:22:15,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:22:15,923 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2025-03-09 06:22:15,924 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 06:22:15,924 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:22:15,924 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2025-03-09 06:22:15,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:22:16,032 INFO L124 PetriNetUnfolderBase]: 499/971 cut-off events. [2025-03-09 06:22:16,033 INFO L125 PetriNetUnfolderBase]: For 200/200 co-relation queries the response was YES. [2025-03-09 06:22:16,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1955 conditions, 971 events. 499/971 cut-off events. For 200/200 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 5049 event pairs, 182 based on Foata normal form. 26/890 useless extension candidates. Maximal degree in co-relation 1943. Up to 466 conditions per place. [2025-03-09 06:22:16,039 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 31 selfloop transitions, 4 changer transitions 0/45 dead transitions. [2025-03-09 06:22:16,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 45 transitions, 186 flow [2025-03-09 06:22:16,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:22:16,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:22:16,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2025-03-09 06:22:16,040 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2025-03-09 06:22:16,041 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 86 flow. Second operand 3 states and 70 transitions. [2025-03-09 06:22:16,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 45 transitions, 186 flow [2025-03-09 06:22:16,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 45 transitions, 178 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:22:16,042 INFO L231 Difference]: Finished difference. Result has 38 places, 33 transitions, 100 flow [2025-03-09 06:22:16,042 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=38, PETRI_TRANSITIONS=33} [2025-03-09 06:22:16,043 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 3 predicate places. [2025-03-09 06:22:16,043 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 33 transitions, 100 flow [2025-03-09 06:22:16,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 06:22:16,043 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:22:16,043 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:22:16,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 06:22:16,043 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-09 06:22:16,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:22:16,044 INFO L85 PathProgramCache]: Analyzing trace with hash 2004506799, now seen corresponding path program 1 times [2025-03-09 06:22:16,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:22:16,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89578955] [2025-03-09 06:22:16,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:22:16,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:22:16,050 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 06:22:16,054 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 06:22:16,054 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:22:16,054 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:22:16,114 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 06:22:16,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:22:16,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89578955] [2025-03-09 06:22:16,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89578955] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:22:16,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:22:16,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:22:16,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84657385] [2025-03-09 06:22:16,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:22:16,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:22:16,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:22:16,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:22:16,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:22:16,130 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 32 [2025-03-09 06:22:16,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 33 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 06:22:16,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:22:16,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 32 [2025-03-09 06:22:16,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:22:16,370 INFO L124 PetriNetUnfolderBase]: 1181/2230 cut-off events. [2025-03-09 06:22:16,371 INFO L125 PetriNetUnfolderBase]: For 710/710 co-relation queries the response was YES. [2025-03-09 06:22:16,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4651 conditions, 2230 events. 1181/2230 cut-off events. For 710/710 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 14007 event pairs, 558 based on Foata normal form. 104/2089 useless extension candidates. Maximal degree in co-relation 4638. Up to 1241 conditions per place. [2025-03-09 06:22:16,383 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 56 selfloop transitions, 3 changer transitions 0/66 dead transitions. [2025-03-09 06:22:16,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 66 transitions, 322 flow [2025-03-09 06:22:16,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:22:16,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:22:16,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 91 transitions. [2025-03-09 06:22:16,385 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7109375 [2025-03-09 06:22:16,385 INFO L175 Difference]: Start difference. First operand has 38 places, 33 transitions, 100 flow. Second operand 4 states and 91 transitions. [2025-03-09 06:22:16,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 66 transitions, 322 flow [2025-03-09 06:22:16,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 66 transitions, 314 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:22:16,388 INFO L231 Difference]: Finished difference. Result has 42 places, 35 transitions, 120 flow [2025-03-09 06:22:16,389 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=120, PETRI_PLACES=42, PETRI_TRANSITIONS=35} [2025-03-09 06:22:16,390 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 7 predicate places. [2025-03-09 06:22:16,390 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 35 transitions, 120 flow [2025-03-09 06:22:16,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 06:22:16,390 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:22:16,390 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:22:16,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 06:22:16,390 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-09 06:22:16,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:22:16,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1984850697, now seen corresponding path program 1 times [2025-03-09 06:22:16,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:22:16,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382342107] [2025-03-09 06:22:16,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:22:16,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:22:16,402 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 06:22:16,405 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 06:22:16,405 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:22:16,405 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:22:16,434 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 06:22:16,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:22:16,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382342107] [2025-03-09 06:22:16,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382342107] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:22:16,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:22:16,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 06:22:16,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873147535] [2025-03-09 06:22:16,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:22:16,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:22:16,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:22:16,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:22:16,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:22:16,437 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2025-03-09 06:22:16,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 35 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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 06:22:16,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:22:16,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2025-03-09 06:22:16,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:22:16,577 INFO L124 PetriNetUnfolderBase]: 791/1734 cut-off events. [2025-03-09 06:22:16,578 INFO L125 PetriNetUnfolderBase]: For 752/768 co-relation queries the response was YES. [2025-03-09 06:22:16,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3921 conditions, 1734 events. 791/1734 cut-off events. For 752/768 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 11553 event pairs, 279 based on Foata normal form. 6/1619 useless extension candidates. Maximal degree in co-relation 3906. Up to 791 conditions per place. [2025-03-09 06:22:16,587 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 41 selfloop transitions, 3 changer transitions 0/55 dead transitions. [2025-03-09 06:22:16,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 55 transitions, 279 flow [2025-03-09 06:22:16,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:22:16,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:22:16,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2025-03-09 06:22:16,588 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7604166666666666 [2025-03-09 06:22:16,588 INFO L175 Difference]: Start difference. First operand has 42 places, 35 transitions, 120 flow. Second operand 3 states and 73 transitions. [2025-03-09 06:22:16,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 55 transitions, 279 flow [2025-03-09 06:22:16,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 55 transitions, 276 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:22:16,591 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 140 flow [2025-03-09 06:22:16,591 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2025-03-09 06:22:16,591 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 10 predicate places. [2025-03-09 06:22:16,591 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 140 flow [2025-03-09 06:22:16,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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 06:22:16,591 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:22:16,591 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:22:16,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 06:22:16,591 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-09 06:22:16,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:22:16,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1984850698, now seen corresponding path program 1 times [2025-03-09 06:22:16,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:22:16,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996964536] [2025-03-09 06:22:16,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:22:16,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:22:16,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 06:22:16,598 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 06:22:16,599 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:22:16,599 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:22:16,628 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 06:22:16,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:22:16,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996964536] [2025-03-09 06:22:16,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996964536] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:22:16,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:22:16,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 06:22:16,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984407937] [2025-03-09 06:22:16,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:22:16,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:22:16,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:22:16,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:22:16,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:22:16,631 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2025-03-09 06:22:16,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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 06:22:16,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:22:16,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2025-03-09 06:22:16,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:22:16,773 INFO L124 PetriNetUnfolderBase]: 753/1716 cut-off events. [2025-03-09 06:22:16,773 INFO L125 PetriNetUnfolderBase]: For 1013/1029 co-relation queries the response was YES. [2025-03-09 06:22:16,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4132 conditions, 1716 events. 753/1716 cut-off events. For 1013/1029 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 11602 event pairs, 217 based on Foata normal form. 42/1701 useless extension candidates. Maximal degree in co-relation 4114. Up to 835 conditions per place. [2025-03-09 06:22:16,781 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 41 selfloop transitions, 4 changer transitions 0/56 dead transitions. [2025-03-09 06:22:16,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 56 transitions, 302 flow [2025-03-09 06:22:16,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:22:16,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:22:16,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2025-03-09 06:22:16,782 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.75 [2025-03-09 06:22:16,782 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 140 flow. Second operand 3 states and 72 transitions. [2025-03-09 06:22:16,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 56 transitions, 302 flow [2025-03-09 06:22:16,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 56 transitions, 294 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:22:16,784 INFO L231 Difference]: Finished difference. Result has 46 places, 38 transitions, 154 flow [2025-03-09 06:22:16,784 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=46, PETRI_TRANSITIONS=38} [2025-03-09 06:22:16,785 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 11 predicate places. [2025-03-09 06:22:16,785 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 38 transitions, 154 flow [2025-03-09 06:22:16,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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 06:22:16,785 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:22:16,785 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:22:16,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 06:22:16,785 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-09 06:22:16,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:22:16,790 INFO L85 PathProgramCache]: Analyzing trace with hash 476048493, now seen corresponding path program 1 times [2025-03-09 06:22:16,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:22:16,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170012033] [2025-03-09 06:22:16,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:22:16,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:22:16,794 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 06:22:16,796 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 06:22:16,796 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:22:16,797 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:22:16,837 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 06:22:16,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:22:16,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170012033] [2025-03-09 06:22:16,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170012033] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:22:16,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:22:16,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:22:16,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762762974] [2025-03-09 06:22:16,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:22:16,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:22:16,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:22:16,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:22:16,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:22:16,848 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 32 [2025-03-09 06:22:16,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 154 flow. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 06:22:16,848 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:22:16,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 32 [2025-03-09 06:22:16,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:22:17,072 INFO L124 PetriNetUnfolderBase]: 1197/2294 cut-off events. [2025-03-09 06:22:17,073 INFO L125 PetriNetUnfolderBase]: For 1748/1947 co-relation queries the response was YES. [2025-03-09 06:22:17,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5719 conditions, 2294 events. 1197/2294 cut-off events. For 1748/1947 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 14882 event pairs, 700 based on Foata normal form. 147/2346 useless extension candidates. Maximal degree in co-relation 5700. Up to 1481 conditions per place. [2025-03-09 06:22:17,086 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 57 selfloop transitions, 3 changer transitions 0/68 dead transitions. [2025-03-09 06:22:17,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 68 transitions, 396 flow [2025-03-09 06:22:17,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:22:17,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:22:17,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 87 transitions. [2025-03-09 06:22:17,087 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6796875 [2025-03-09 06:22:17,087 INFO L175 Difference]: Start difference. First operand has 46 places, 38 transitions, 154 flow. Second operand 4 states and 87 transitions. [2025-03-09 06:22:17,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 68 transitions, 396 flow [2025-03-09 06:22:17,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 68 transitions, 388 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:22:17,091 INFO L231 Difference]: Finished difference. Result has 50 places, 40 transitions, 174 flow [2025-03-09 06:22:17,092 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=150, 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=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=174, PETRI_PLACES=50, PETRI_TRANSITIONS=40} [2025-03-09 06:22:17,092 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 15 predicate places. [2025-03-09 06:22:17,092 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 40 transitions, 174 flow [2025-03-09 06:22:17,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 06:22:17,092 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:22:17,092 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:22:17,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 06:22:17,094 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-09 06:22:17,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:22:17,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1652667496, now seen corresponding path program 1 times [2025-03-09 06:22:17,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:22:17,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390102464] [2025-03-09 06:22:17,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:22:17,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:22:17,104 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 06:22:17,109 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 06:22:17,109 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:22:17,109 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:22:17,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:22:17,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:22:17,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390102464] [2025-03-09 06:22:17,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390102464] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:22:17,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:22:17,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:22:17,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225752168] [2025-03-09 06:22:17,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:22:17,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:22:17,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:22:17,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:22:17,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:22:17,154 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2025-03-09 06:22:17,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 40 transitions, 174 flow. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 06:22:17,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:22:17,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2025-03-09 06:22:17,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:22:17,388 INFO L124 PetriNetUnfolderBase]: 1021/2270 cut-off events. [2025-03-09 06:22:17,388 INFO L125 PetriNetUnfolderBase]: For 1871/2056 co-relation queries the response was YES. [2025-03-09 06:22:17,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6024 conditions, 2270 events. 1021/2270 cut-off events. For 1871/2056 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 16343 event pairs, 193 based on Foata normal form. 120/2344 useless extension candidates. Maximal degree in co-relation 6003. Up to 674 conditions per place. [2025-03-09 06:22:17,402 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 58 selfloop transitions, 11 changer transitions 0/81 dead transitions. [2025-03-09 06:22:17,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 81 transitions, 477 flow [2025-03-09 06:22:17,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:22:17,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:22:17,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 116 transitions. [2025-03-09 06:22:17,403 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.725 [2025-03-09 06:22:17,404 INFO L175 Difference]: Start difference. First operand has 50 places, 40 transitions, 174 flow. Second operand 5 states and 116 transitions. [2025-03-09 06:22:17,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 81 transitions, 477 flow [2025-03-09 06:22:17,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 81 transitions, 472 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:22:17,408 INFO L231 Difference]: Finished difference. Result has 57 places, 47 transitions, 272 flow [2025-03-09 06:22:17,408 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=272, PETRI_PLACES=57, PETRI_TRANSITIONS=47} [2025-03-09 06:22:17,409 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 22 predicate places. [2025-03-09 06:22:17,410 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 47 transitions, 272 flow [2025-03-09 06:22:17,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 06:22:17,410 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:22:17,410 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:22:17,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 06:22:17,410 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-09 06:22:17,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:22:17,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1652667497, now seen corresponding path program 1 times [2025-03-09 06:22:17,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:22:17,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61120611] [2025-03-09 06:22:17,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:22:17,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:22:17,416 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 06:22:17,419 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 06:22:17,420 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:22:17,420 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:22:17,451 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 06:22:17,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:22:17,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61120611] [2025-03-09 06:22:17,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61120611] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:22:17,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:22:17,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:22:17,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941044352] [2025-03-09 06:22:17,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:22:17,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:22:17,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:22:17,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:22:17,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:22:17,455 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2025-03-09 06:22:17,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 47 transitions, 272 flow. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 06:22:17,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:22:17,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2025-03-09 06:22:17,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:22:17,686 INFO L124 PetriNetUnfolderBase]: 1098/2481 cut-off events. [2025-03-09 06:22:17,687 INFO L125 PetriNetUnfolderBase]: For 4261/4434 co-relation queries the response was YES. [2025-03-09 06:22:17,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6971 conditions, 2481 events. 1098/2481 cut-off events. For 4261/4434 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 17971 event pairs, 268 based on Foata normal form. 183/2571 useless extension candidates. Maximal degree in co-relation 6945. Up to 809 conditions per place. [2025-03-09 06:22:17,704 INFO L140 encePairwiseOnDemand]: 25/32 looper letters, 63 selfloop transitions, 9 changer transitions 0/84 dead transitions. [2025-03-09 06:22:17,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 84 transitions, 564 flow [2025-03-09 06:22:17,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:22:17,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:22:17,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 117 transitions. [2025-03-09 06:22:17,706 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.73125 [2025-03-09 06:22:17,706 INFO L175 Difference]: Start difference. First operand has 57 places, 47 transitions, 272 flow. Second operand 5 states and 117 transitions. [2025-03-09 06:22:17,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 84 transitions, 564 flow [2025-03-09 06:22:17,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 84 transitions, 541 flow, removed 1 selfloop flow, removed 3 redundant places. [2025-03-09 06:22:17,714 INFO L231 Difference]: Finished difference. Result has 61 places, 52 transitions, 327 flow [2025-03-09 06:22:17,714 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=327, PETRI_PLACES=61, PETRI_TRANSITIONS=52} [2025-03-09 06:22:17,714 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 26 predicate places. [2025-03-09 06:22:17,716 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 52 transitions, 327 flow [2025-03-09 06:22:17,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 06:22:17,716 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:22:17,716 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:22:17,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-09 06:22:17,716 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-09 06:22:17,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:22:17,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1017608297, now seen corresponding path program 1 times [2025-03-09 06:22:17,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:22:17,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049915185] [2025-03-09 06:22:17,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:22:17,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:22:17,723 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 06:22:17,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 06:22:17,726 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:22:17,726 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:22:17,757 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 06:22:17,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:22:17,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049915185] [2025-03-09 06:22:17,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049915185] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:22:17,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:22:17,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:22:17,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886841029] [2025-03-09 06:22:17,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:22:17,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:22:17,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:22:17,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:22:17,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:22:17,759 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2025-03-09 06:22:17,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 52 transitions, 327 flow. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 06:22:17,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:22:17,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2025-03-09 06:22:17,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:22:17,888 INFO L124 PetriNetUnfolderBase]: 903/1917 cut-off events. [2025-03-09 06:22:17,888 INFO L125 PetriNetUnfolderBase]: For 3740/3971 co-relation queries the response was YES. [2025-03-09 06:22:17,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5573 conditions, 1917 events. 903/1917 cut-off events. For 3740/3971 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 12677 event pairs, 696 based on Foata normal form. 161/1993 useless extension candidates. Maximal degree in co-relation 5545. Up to 1466 conditions per place. [2025-03-09 06:22:17,897 INFO L140 encePairwiseOnDemand]: 29/32 looper letters, 32 selfloop transitions, 1 changer transitions 0/45 dead transitions. [2025-03-09 06:22:17,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 45 transitions, 330 flow [2025-03-09 06:22:17,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:22:17,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:22:17,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2025-03-09 06:22:17,898 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2025-03-09 06:22:17,899 INFO L175 Difference]: Start difference. First operand has 61 places, 52 transitions, 327 flow. Second operand 3 states and 56 transitions. [2025-03-09 06:22:17,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 45 transitions, 330 flow [2025-03-09 06:22:17,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 45 transitions, 314 flow, removed 5 selfloop flow, removed 2 redundant places. [2025-03-09 06:22:17,906 INFO L231 Difference]: Finished difference. Result has 58 places, 45 transitions, 250 flow [2025-03-09 06:22:17,906 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=58, PETRI_TRANSITIONS=45} [2025-03-09 06:22:17,907 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 23 predicate places. [2025-03-09 06:22:17,907 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 45 transitions, 250 flow [2025-03-09 06:22:17,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 06:22:17,907 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:22:17,907 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:22:17,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-09 06:22:17,908 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-09 06:22:17,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:22:17,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1017608296, now seen corresponding path program 1 times [2025-03-09 06:22:17,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:22:17,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489111660] [2025-03-09 06:22:17,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:22:17,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:22:17,913 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 06:22:17,916 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 06:22:17,917 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:22:17,918 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:22:17,938 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 06:22:17,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:22:17,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489111660] [2025-03-09 06:22:17,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489111660] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:22:17,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:22:17,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:22:17,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203280523] [2025-03-09 06:22:17,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:22:17,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:22:17,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:22:17,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:22:17,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:22:17,940 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2025-03-09 06:22:17,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 45 transitions, 250 flow. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 06:22:17,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:22:17,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2025-03-09 06:22:17,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:22:18,124 INFO L124 PetriNetUnfolderBase]: 1002/2330 cut-off events. [2025-03-09 06:22:18,124 INFO L125 PetriNetUnfolderBase]: For 2596/2781 co-relation queries the response was YES. [2025-03-09 06:22:18,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6223 conditions, 2330 events. 1002/2330 cut-off events. For 2596/2781 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 16530 event pairs, 199 based on Foata normal form. 110/2367 useless extension candidates. Maximal degree in co-relation 6199. Up to 1168 conditions per place. [2025-03-09 06:22:18,133 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 58 selfloop transitions, 5 changer transitions 0/75 dead transitions. [2025-03-09 06:22:18,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 75 transitions, 480 flow [2025-03-09 06:22:18,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:22:18,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:22:18,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 109 transitions. [2025-03-09 06:22:18,134 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.68125 [2025-03-09 06:22:18,134 INFO L175 Difference]: Start difference. First operand has 58 places, 45 transitions, 250 flow. Second operand 5 states and 109 transitions. [2025-03-09 06:22:18,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 75 transitions, 480 flow [2025-03-09 06:22:18,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 75 transitions, 475 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-03-09 06:22:18,138 INFO L231 Difference]: Finished difference. Result has 63 places, 46 transitions, 271 flow [2025-03-09 06:22:18,138 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=271, PETRI_PLACES=63, PETRI_TRANSITIONS=46} [2025-03-09 06:22:18,139 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 28 predicate places. [2025-03-09 06:22:18,139 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 46 transitions, 271 flow [2025-03-09 06:22:18,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 06:22:18,139 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:22:18,139 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-03-09 06:22:18,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-09 06:22:18,139 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-09 06:22:18,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:22:18,140 INFO L85 PathProgramCache]: Analyzing trace with hash -2101859406, now seen corresponding path program 1 times [2025-03-09 06:22:18,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:22:18,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271222953] [2025-03-09 06:22:18,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:22:18,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:22:18,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 06:22:18,145 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 06:22:18,145 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:22:18,145 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:22:18,194 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:22:18,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:22:18,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271222953] [2025-03-09 06:22:18,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271222953] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:22:18,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706968392] [2025-03-09 06:22:18,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:22:18,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:22:18,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:22:18,198 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:22:18,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 06:22:18,232 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 06:22:18,239 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 06:22:18,239 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:22:18,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:22:18,241 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 06:22:18,243 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:22:18,285 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:22:18,285 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:22:18,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706968392] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:22:18,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:22:18,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2025-03-09 06:22:18,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447581857] [2025-03-09 06:22:18,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:22:18,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:22:18,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:22:18,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:22:18,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-03-09 06:22:18,293 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 32 [2025-03-09 06:22:18,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 46 transitions, 271 flow. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 06:22:18,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:22:18,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 32 [2025-03-09 06:22:18,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:22:18,543 INFO L124 PetriNetUnfolderBase]: 1858/3390 cut-off events. [2025-03-09 06:22:18,543 INFO L125 PetriNetUnfolderBase]: For 4438/4674 co-relation queries the response was YES. [2025-03-09 06:22:18,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9796 conditions, 3390 events. 1858/3390 cut-off events. For 4438/4674 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 21685 event pairs, 259 based on Foata normal form. 202/3404 useless extension candidates. Maximal degree in co-relation 9769. Up to 1361 conditions per place. [2025-03-09 06:22:18,555 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 63 selfloop transitions, 6 changer transitions 0/76 dead transitions. [2025-03-09 06:22:18,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 76 transitions, 566 flow [2025-03-09 06:22:18,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:22:18,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:22:18,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 76 transitions. [2025-03-09 06:22:18,556 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.59375 [2025-03-09 06:22:18,556 INFO L175 Difference]: Start difference. First operand has 63 places, 46 transitions, 271 flow. Second operand 4 states and 76 transitions. [2025-03-09 06:22:18,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 76 transitions, 566 flow [2025-03-09 06:22:18,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 76 transitions, 552 flow, removed 3 selfloop flow, removed 2 redundant places. [2025-03-09 06:22:18,563 INFO L231 Difference]: Finished difference. Result has 63 places, 45 transitions, 271 flow [2025-03-09 06:22:18,563 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=271, PETRI_PLACES=63, PETRI_TRANSITIONS=45} [2025-03-09 06:22:18,563 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 28 predicate places. [2025-03-09 06:22:18,564 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 45 transitions, 271 flow [2025-03-09 06:22:18,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 06:22:18,564 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:22:18,564 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-03-09 06:22:18,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-09 06:22:18,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-03-09 06:22:18,765 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-09 06:22:18,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:22:18,765 INFO L85 PathProgramCache]: Analyzing trace with hash -733131992, now seen corresponding path program 1 times [2025-03-09 06:22:18,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:22:18,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030440707] [2025-03-09 06:22:18,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:22:18,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:22:18,769 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 06:22:18,771 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 06:22:18,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:22:18,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:22:18,801 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 06:22:18,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:22:18,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030440707] [2025-03-09 06:22:18,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030440707] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:22:18,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:22:18,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:22:18,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422049122] [2025-03-09 06:22:18,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:22:18,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:22:18,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:22:18,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:22:18,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:22:18,807 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 32 [2025-03-09 06:22:18,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 45 transitions, 271 flow. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 06:22:18,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:22:18,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 32 [2025-03-09 06:22:18,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:22:19,038 INFO L124 PetriNetUnfolderBase]: 1583/3216 cut-off events. [2025-03-09 06:22:19,038 INFO L125 PetriNetUnfolderBase]: For 4752/4869 co-relation queries the response was YES. [2025-03-09 06:22:19,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9374 conditions, 3216 events. 1583/3216 cut-off events. For 4752/4869 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 21736 event pairs, 358 based on Foata normal form. 178/3347 useless extension candidates. Maximal degree in co-relation 9348. Up to 1262 conditions per place. [2025-03-09 06:22:19,053 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 63 selfloop transitions, 6 changer transitions 0/76 dead transitions. [2025-03-09 06:22:19,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 76 transitions, 562 flow [2025-03-09 06:22:19,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:22:19,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:22:19,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 76 transitions. [2025-03-09 06:22:19,055 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.59375 [2025-03-09 06:22:19,055 INFO L175 Difference]: Start difference. First operand has 63 places, 45 transitions, 271 flow. Second operand 4 states and 76 transitions. [2025-03-09 06:22:19,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 76 transitions, 562 flow [2025-03-09 06:22:19,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 76 transitions, 550 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:22:19,064 INFO L231 Difference]: Finished difference. Result has 63 places, 45 transitions, 275 flow [2025-03-09 06:22:19,064 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=275, PETRI_PLACES=63, PETRI_TRANSITIONS=45} [2025-03-09 06:22:19,064 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 28 predicate places. [2025-03-09 06:22:19,064 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 45 transitions, 275 flow [2025-03-09 06:22:19,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 06:22:19,064 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:22:19,064 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:22:19,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-09 06:22:19,065 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-09 06:22:19,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:22:19,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1110404095, now seen corresponding path program 1 times [2025-03-09 06:22:19,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:22:19,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666317613] [2025-03-09 06:22:19,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:22:19,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:22:19,069 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-09 06:22:19,071 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-09 06:22:19,071 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:22:19,072 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:22:19,109 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:22:19,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:22:19,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666317613] [2025-03-09 06:22:19,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666317613] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:22:19,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479904445] [2025-03-09 06:22:19,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:22:19,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:22:19,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:22:19,112 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:22:19,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-09 06:22:19,144 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-09 06:22:19,154 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-09 06:22:19,155 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:22:19,155 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:22:19,155 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:22:19,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:22:19,195 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:22:19,195 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:22:19,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479904445] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:22:19,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:22:19,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-03-09 06:22:19,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934910996] [2025-03-09 06:22:19,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:22:19,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:22:19,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:22:19,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:22:19,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-09 06:22:19,214 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 32 [2025-03-09 06:22:19,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 45 transitions, 275 flow. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 06:22:19,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:22:19,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 32 [2025-03-09 06:22:19,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:22:19,515 INFO L124 PetriNetUnfolderBase]: 1521/2931 cut-off events. [2025-03-09 06:22:19,515 INFO L125 PetriNetUnfolderBase]: For 5613/5705 co-relation queries the response was YES. [2025-03-09 06:22:19,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8772 conditions, 2931 events. 1521/2931 cut-off events. For 5613/5705 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 19053 event pairs, 142 based on Foata normal form. 207/3017 useless extension candidates. Maximal degree in co-relation 8746. Up to 984 conditions per place. [2025-03-09 06:22:19,529 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 81 selfloop transitions, 6 changer transitions 1/95 dead transitions. [2025-03-09 06:22:19,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 95 transitions, 726 flow [2025-03-09 06:22:19,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:22:19,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:22:19,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 114 transitions. [2025-03-09 06:22:19,531 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.59375 [2025-03-09 06:22:19,531 INFO L175 Difference]: Start difference. First operand has 63 places, 45 transitions, 275 flow. Second operand 6 states and 114 transitions. [2025-03-09 06:22:19,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 95 transitions, 726 flow [2025-03-09 06:22:19,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 95 transitions, 706 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:22:19,539 INFO L231 Difference]: Finished difference. Result has 65 places, 44 transitions, 275 flow [2025-03-09 06:22:19,539 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=275, PETRI_PLACES=65, PETRI_TRANSITIONS=44} [2025-03-09 06:22:19,539 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 30 predicate places. [2025-03-09 06:22:19,539 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 44 transitions, 275 flow [2025-03-09 06:22:19,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 06:22:19,540 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:22:19,540 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:22:19,546 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-09 06:22:19,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-03-09 06:22:19,741 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-09 06:22:19,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:22:19,741 INFO L85 PathProgramCache]: Analyzing trace with hash 832893443, now seen corresponding path program 1 times [2025-03-09 06:22:19,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:22:19,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226320041] [2025-03-09 06:22:19,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:22:19,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:22:19,747 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 06:22:19,750 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 06:22:19,750 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:22:19,750 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:22:19,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:22:19,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:22:19,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226320041] [2025-03-09 06:22:19,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226320041] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:22:19,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851461716] [2025-03-09 06:22:19,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:22:19,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:22:19,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:22:19,789 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:22:19,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-09 06:22:19,824 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 06:22:19,833 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 06:22:19,833 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:22:19,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:22:19,834 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 06:22:19,835 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:22:19,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:22:19,855 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:22:19,896 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:22:19,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851461716] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:22:19,896 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:22:19,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-03-09 06:22:19,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440448415] [2025-03-09 06:22:19,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:22:19,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 06:22:19,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:22:19,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 06:22:19,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-03-09 06:22:19,897 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2025-03-09 06:22:19,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 44 transitions, 275 flow. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 8 states have internal predecessors, (116), 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 06:22:19,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:22:19,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2025-03-09 06:22:19,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:22:20,165 INFO L124 PetriNetUnfolderBase]: 1339/2904 cut-off events. [2025-03-09 06:22:20,165 INFO L125 PetriNetUnfolderBase]: For 6270/6352 co-relation queries the response was YES. [2025-03-09 06:22:20,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8846 conditions, 2904 events. 1339/2904 cut-off events. For 6270/6352 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 18824 event pairs, 119 based on Foata normal form. 227/3108 useless extension candidates. Maximal degree in co-relation 8819. Up to 507 conditions per place. [2025-03-09 06:22:20,176 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 73 selfloop transitions, 12 changer transitions 4/99 dead transitions. [2025-03-09 06:22:20,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 99 transitions, 703 flow [2025-03-09 06:22:20,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 06:22:20,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-09 06:22:20,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 158 transitions. [2025-03-09 06:22:20,178 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7053571428571429 [2025-03-09 06:22:20,178 INFO L175 Difference]: Start difference. First operand has 65 places, 44 transitions, 275 flow. Second operand 7 states and 158 transitions. [2025-03-09 06:22:20,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 99 transitions, 703 flow [2025-03-09 06:22:20,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 99 transitions, 676 flow, removed 7 selfloop flow, removed 4 redundant places. [2025-03-09 06:22:20,186 INFO L231 Difference]: Finished difference. Result has 72 places, 50 transitions, 379 flow [2025-03-09 06:22:20,186 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=379, PETRI_PLACES=72, PETRI_TRANSITIONS=50} [2025-03-09 06:22:20,186 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 37 predicate places. [2025-03-09 06:22:20,186 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 50 transitions, 379 flow [2025-03-09 06:22:20,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 8 states have internal predecessors, (116), 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 06:22:20,186 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:22:20,187 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:22:20,193 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-09 06:22:20,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:22:20,387 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-09 06:22:20,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:22:20,388 INFO L85 PathProgramCache]: Analyzing trace with hash 62788742, now seen corresponding path program 1 times [2025-03-09 06:22:20,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:22:20,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393248136] [2025-03-09 06:22:20,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:22:20,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:22:20,392 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 06:22:20,395 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 06:22:20,395 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:22:20,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:22:20,412 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 06:22:20,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:22:20,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393248136] [2025-03-09 06:22:20,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393248136] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:22:20,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:22:20,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:22:20,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427702904] [2025-03-09 06:22:20,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:22:20,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:22:20,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:22:20,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:22:20,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:22:20,418 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 32 [2025-03-09 06:22:20,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 50 transitions, 379 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:22:20,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:22:20,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 32 [2025-03-09 06:22:20,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:22:20,670 INFO L124 PetriNetUnfolderBase]: 2138/3893 cut-off events. [2025-03-09 06:22:20,670 INFO L125 PetriNetUnfolderBase]: For 10005/10082 co-relation queries the response was YES. [2025-03-09 06:22:20,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12733 conditions, 3893 events. 2138/3893 cut-off events. For 10005/10082 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 22890 event pairs, 503 based on Foata normal form. 257/4109 useless extension candidates. Maximal degree in co-relation 12701. Up to 1567 conditions per place. [2025-03-09 06:22:20,692 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 69 selfloop transitions, 6 changer transitions 0/81 dead transitions. [2025-03-09 06:22:20,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 81 transitions, 764 flow [2025-03-09 06:22:20,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:22:20,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:22:20,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2025-03-09 06:22:20,693 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5625 [2025-03-09 06:22:20,693 INFO L175 Difference]: Start difference. First operand has 72 places, 50 transitions, 379 flow. Second operand 4 states and 72 transitions. [2025-03-09 06:22:20,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 81 transitions, 764 flow [2025-03-09 06:22:20,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 81 transitions, 729 flow, removed 11 selfloop flow, removed 3 redundant places. [2025-03-09 06:22:20,707 INFO L231 Difference]: Finished difference. Result has 72 places, 50 transitions, 372 flow [2025-03-09 06:22:20,707 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=372, PETRI_PLACES=72, PETRI_TRANSITIONS=50} [2025-03-09 06:22:20,707 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 37 predicate places. [2025-03-09 06:22:20,707 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 50 transitions, 372 flow [2025-03-09 06:22:20,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:22:20,708 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:22:20,708 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:22:20,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-09 06:22:20,708 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-09 06:22:20,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:22:20,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1967023659, now seen corresponding path program 1 times [2025-03-09 06:22:20,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:22:20,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084116689] [2025-03-09 06:22:20,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:22:20,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:22:20,713 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-09 06:22:20,717 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-09 06:22:20,717 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:22:20,717 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:22:20,781 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:22:20,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:22:20,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084116689] [2025-03-09 06:22:20,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084116689] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:22:20,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082890857] [2025-03-09 06:22:20,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:22:20,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:22:20,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:22:20,783 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:22:20,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-09 06:22:20,815 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-09 06:22:20,826 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-09 06:22:20,826 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:22:20,826 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:22:20,827 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 06:22:20,827 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:22:20,853 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:22:20,853 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:22:20,914 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:22:20,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082890857] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:22:20,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:22:20,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-09 06:22:20,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917658288] [2025-03-09 06:22:20,914 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:22:20,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 06:22:20,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:22:20,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 06:22:20,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2025-03-09 06:22:20,915 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2025-03-09 06:22:20,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 50 transitions, 372 flow. Second operand has 12 states, 12 states have (on average 14.333333333333334) internal successors, (172), 12 states have internal predecessors, (172), 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 06:22:20,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:22:20,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2025-03-09 06:22:20,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:22:21,299 INFO L124 PetriNetUnfolderBase]: 1744/3743 cut-off events. [2025-03-09 06:22:21,300 INFO L125 PetriNetUnfolderBase]: For 12928/12958 co-relation queries the response was YES. [2025-03-09 06:22:21,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11877 conditions, 3743 events. 1744/3743 cut-off events. For 12928/12958 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 23155 event pairs, 59 based on Foata normal form. 200/3940 useless extension candidates. Maximal degree in co-relation 11846. Up to 457 conditions per place. [2025-03-09 06:22:21,318 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 100 selfloop transitions, 17 changer transitions 17/144 dead transitions. [2025-03-09 06:22:21,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 144 transitions, 1032 flow [2025-03-09 06:22:21,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-09 06:22:21,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-09 06:22:21,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 268 transitions. [2025-03-09 06:22:21,320 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6979166666666666 [2025-03-09 06:22:21,320 INFO L175 Difference]: Start difference. First operand has 72 places, 50 transitions, 372 flow. Second operand 12 states and 268 transitions. [2025-03-09 06:22:21,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 144 transitions, 1032 flow [2025-03-09 06:22:21,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 144 transitions, 995 flow, removed 8 selfloop flow, removed 2 redundant places. [2025-03-09 06:22:21,331 INFO L231 Difference]: Finished difference. Result has 87 places, 52 transitions, 429 flow [2025-03-09 06:22:21,331 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=429, PETRI_PLACES=87, PETRI_TRANSITIONS=52} [2025-03-09 06:22:21,332 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 52 predicate places. [2025-03-09 06:22:21,332 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 52 transitions, 429 flow [2025-03-09 06:22:21,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.333333333333334) internal successors, (172), 12 states have internal predecessors, (172), 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 06:22:21,332 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:22:21,332 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:22:21,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-09 06:22:21,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-09 06:22:21,536 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-09 06:22:21,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:22:21,536 INFO L85 PathProgramCache]: Analyzing trace with hash -58641131, now seen corresponding path program 1 times [2025-03-09 06:22:21,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:22:21,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278503548] [2025-03-09 06:22:21,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:22:21,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:22:21,541 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-09 06:22:21,546 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-09 06:22:21,546 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:22:21,546 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:22:21,614 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:22:21,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:22:21,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278503548] [2025-03-09 06:22:21,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278503548] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:22:21,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902457235] [2025-03-09 06:22:21,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:22:21,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:22:21,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:22:21,616 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:22:21,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-09 06:22:21,645 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-09 06:22:21,656 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-09 06:22:21,656 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:22:21,656 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:22:21,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-09 06:22:21,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:22:21,693 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:22:21,694 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:22:21,776 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:22:21,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902457235] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:22:21,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:22:21,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2025-03-09 06:22:21,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101130916] [2025-03-09 06:22:21,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:22:21,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-09 06:22:21,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:22:21,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-09 06:22:21,777 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2025-03-09 06:22:21,777 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2025-03-09 06:22:21,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 52 transitions, 429 flow. Second operand has 16 states, 16 states have (on average 14.25) internal successors, (228), 16 states have internal predecessors, (228), 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 06:22:21,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:22:21,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2025-03-09 06:22:21,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:22:22,346 INFO L124 PetriNetUnfolderBase]: 2554/5409 cut-off events. [2025-03-09 06:22:22,346 INFO L125 PetriNetUnfolderBase]: For 19397/19439 co-relation queries the response was YES. [2025-03-09 06:22:22,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17144 conditions, 5409 events. 2554/5409 cut-off events. For 19397/19439 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 33758 event pairs, 119 based on Foata normal form. 192/5588 useless extension candidates. Maximal degree in co-relation 17105. Up to 647 conditions per place. [2025-03-09 06:22:22,372 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 120 selfloop transitions, 24 changer transitions 25/179 dead transitions. [2025-03-09 06:22:22,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 179 transitions, 1332 flow [2025-03-09 06:22:22,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-09 06:22:22,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-09 06:22:22,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 334 transitions. [2025-03-09 06:22:22,374 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6958333333333333 [2025-03-09 06:22:22,374 INFO L175 Difference]: Start difference. First operand has 87 places, 52 transitions, 429 flow. Second operand 15 states and 334 transitions. [2025-03-09 06:22:22,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 179 transitions, 1332 flow [2025-03-09 06:22:22,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 179 transitions, 1319 flow, removed 3 selfloop flow, removed 3 redundant places. [2025-03-09 06:22:22,395 INFO L231 Difference]: Finished difference. Result has 105 places, 60 transitions, 580 flow [2025-03-09 06:22:22,395 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=580, PETRI_PLACES=105, PETRI_TRANSITIONS=60} [2025-03-09 06:22:22,395 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 70 predicate places. [2025-03-09 06:22:22,395 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 60 transitions, 580 flow [2025-03-09 06:22:22,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.25) internal successors, (228), 16 states have internal predecessors, (228), 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 06:22:22,396 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:22:22,396 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:22:22,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-09 06:22:22,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-09 06:22:22,596 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-09 06:22:22,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:22:22,597 INFO L85 PathProgramCache]: Analyzing trace with hash -233061099, now seen corresponding path program 2 times [2025-03-09 06:22:22,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:22:22,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061479155] [2025-03-09 06:22:22,597 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:22:22,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:22:22,603 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 65 statements into 2 equivalence classes. [2025-03-09 06:22:22,616 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 65 of 65 statements. [2025-03-09 06:22:22,617 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 06:22:22,617 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:22:22,818 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:22:22,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:22:22,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061479155] [2025-03-09 06:22:22,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061479155] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:22:22,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330170537] [2025-03-09 06:22:22,819 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:22:22,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:22:22,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:22:22,821 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:22:22,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-09 06:22:22,856 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 65 statements into 2 equivalence classes. [2025-03-09 06:22:22,874 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 65 of 65 statements. [2025-03-09 06:22:22,874 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 06:22:22,874 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:22:22,875 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-09 06:22:22,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:22:22,953 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:22:22,953 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:22:23,180 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:22:23,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330170537] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:22:23,181 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:22:23,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 26 [2025-03-09 06:22:23,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524640941] [2025-03-09 06:22:23,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:22:23,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-03-09 06:22:23,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:22:23,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-03-09 06:22:23,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=546, Unknown=0, NotChecked=0, Total=756 [2025-03-09 06:22:23,183 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 32 [2025-03-09 06:22:23,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 60 transitions, 580 flow. Second operand has 28 states, 28 states have (on average 14.142857142857142) internal successors, (396), 28 states have internal predecessors, (396), 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 06:22:23,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:22:23,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 32 [2025-03-09 06:22:23,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:22:24,453 INFO L124 PetriNetUnfolderBase]: 4336/9215 cut-off events. [2025-03-09 06:22:24,454 INFO L125 PetriNetUnfolderBase]: For 48451/48481 co-relation queries the response was YES. [2025-03-09 06:22:24,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29574 conditions, 9215 events. 4336/9215 cut-off events. For 48451/48481 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 57326 event pairs, 59 based on Foata normal form. 360/9572 useless extension candidates. Maximal degree in co-relation 29527. Up to 1177 conditions per place. [2025-03-09 06:22:24,493 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 212 selfloop transitions, 41 changer transitions 49/312 dead transitions. [2025-03-09 06:22:24,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 312 transitions, 2331 flow [2025-03-09 06:22:24,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-09 06:22:24,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2025-03-09 06:22:24,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 625 transitions. [2025-03-09 06:22:24,495 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6975446428571429 [2025-03-09 06:22:24,495 INFO L175 Difference]: Start difference. First operand has 105 places, 60 transitions, 580 flow. Second operand 28 states and 625 transitions. [2025-03-09 06:22:24,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 312 transitions, 2331 flow [2025-03-09 06:22:24,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 312 transitions, 2251 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-03-09 06:22:24,530 INFO L231 Difference]: Finished difference. Result has 139 places, 76 transitions, 842 flow [2025-03-09 06:22:24,530 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=842, PETRI_PLACES=139, PETRI_TRANSITIONS=76} [2025-03-09 06:22:24,531 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 104 predicate places. [2025-03-09 06:22:24,531 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 76 transitions, 842 flow [2025-03-09 06:22:24,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 14.142857142857142) internal successors, (396), 28 states have internal predecessors, (396), 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 06:22:24,531 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:22:24,531 INFO L206 CegarLoopForPetriNet]: trace histogram [12, 11, 11, 11, 11, 11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:22:24,537 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-09 06:22:24,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-09 06:22:24,732 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-03-09 06:22:24,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:22:24,732 INFO L85 PathProgramCache]: Analyzing trace with hash 338949581, now seen corresponding path program 2 times [2025-03-09 06:22:24,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:22:24,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680534150] [2025-03-09 06:22:24,733 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:22:24,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:22:24,738 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 115 statements into 2 equivalence classes. [2025-03-09 06:22:24,753 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 115 of 115 statements. [2025-03-09 06:22:24,754 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 06:22:24,754 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:22:25,183 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 0 proven. 384 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:22:25,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:22:25,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680534150] [2025-03-09 06:22:25,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680534150] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:22:25,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54563411] [2025-03-09 06:22:25,184 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:22:25,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:22:25,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:22:25,186 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:22:25,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-09 06:22:25,218 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 115 statements into 2 equivalence classes. [2025-03-09 06:22:25,242 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 115 of 115 statements. [2025-03-09 06:22:25,243 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 06:22:25,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:22:25,244 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-03-09 06:22:25,246 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:22:25,617 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-09 06:22:25,617 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:22:25,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54563411] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:22:25,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:22:25,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [23] total 46 [2025-03-09 06:22:25,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729164701] [2025-03-09 06:22:25,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:22:25,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-09 06:22:25,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:22:25,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-09 06:22:25,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=1760, Unknown=0, NotChecked=0, Total=2070 [2025-03-09 06:22:25,634 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 32 [2025-03-09 06:22:25,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 76 transitions, 842 flow. Second operand has 23 states, 23 states have (on average 11.130434782608695) internal successors, (256), 23 states have internal predecessors, (256), 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 06:22:25,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:22:25,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 32 [2025-03-09 06:22:25,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:22:30,624 INFO L124 PetriNetUnfolderBase]: 26884/46200 cut-off events. [2025-03-09 06:22:30,625 INFO L125 PetriNetUnfolderBase]: For 114910/114910 co-relation queries the response was YES. [2025-03-09 06:22:31,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149987 conditions, 46200 events. 26884/46200 cut-off events. For 114910/114910 co-relation queries the response was YES. Maximal size of possible extension queue 525. Compared 346507 event pairs, 525 based on Foata normal form. 612/46799 useless extension candidates. Maximal degree in co-relation 149937. Up to 6831 conditions per place. [2025-03-09 06:22:31,064 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 0 selfloop transitions, 0 changer transitions 633/633 dead transitions. [2025-03-09 06:22:31,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 633 transitions, 6983 flow [2025-03-09 06:22:31,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-09 06:22:31,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2025-03-09 06:22:31,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 458 transitions. [2025-03-09 06:22:31,066 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6222826086956522 [2025-03-09 06:22:31,066 INFO L175 Difference]: Start difference. First operand has 139 places, 76 transitions, 842 flow. Second operand 23 states and 458 transitions. [2025-03-09 06:22:31,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 633 transitions, 6983 flow [2025-03-09 06:22:31,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 633 transitions, 5152 flow, removed 22 selfloop flow, removed 48 redundant places. [2025-03-09 06:22:31,342 INFO L231 Difference]: Finished difference. Result has 108 places, 0 transitions, 0 flow [2025-03-09 06:22:31,342 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=0, PETRI_PLACES=108, PETRI_TRANSITIONS=0} [2025-03-09 06:22:31,343 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 73 predicate places. [2025-03-09 06:22:31,343 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 0 transitions, 0 flow [2025-03-09 06:22:31,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.130434782608695) internal successors, (256), 23 states have internal predecessors, (256), 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 06:22:31,346 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2025-03-09 06:22:31,346 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 18 remaining) [2025-03-09 06:22:31,346 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2025-03-09 06:22:31,346 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2025-03-09 06:22:31,346 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2025-03-09 06:22:31,346 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2025-03-09 06:22:31,346 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2025-03-09 06:22:31,346 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2025-03-09 06:22:31,346 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2025-03-09 06:22:31,346 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2025-03-09 06:22:31,346 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2025-03-09 06:22:31,347 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2025-03-09 06:22:31,347 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2025-03-09 06:22:31,347 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2025-03-09 06:22:31,347 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2025-03-09 06:22:31,347 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2025-03-09 06:22:31,347 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2025-03-09 06:22:31,347 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2025-03-09 06:22:31,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-09 06:22:31,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:22:31,548 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:22:31,553 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-09 06:22:31,553 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 06:22:31,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 06:22:31 BasicIcfg [2025-03-09 06:22:31,559 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 06:22:31,560 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 06:22:31,560 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 06:22:31,560 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 06:22:31,561 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:22:15" (3/4) ... [2025-03-09 06:22:31,562 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-09 06:22:31,563 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t1 [2025-03-09 06:22:31,564 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t2 [2025-03-09 06:22:31,565 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2025-03-09 06:22:31,566 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-03-09 06:22:31,566 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-09 06:22:31,566 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-09 06:22:31,567 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-09 06:22:31,616 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 06:22:31,617 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 06:22:31,617 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 06:22:31,617 INFO L158 Benchmark]: Toolchain (without parser) took 16976.49ms. Allocated memory was 142.6MB in the beginning and 1.1GB in the end (delta: 947.9MB). Free memory was 104.0MB in the beginning and 427.6MB in the end (delta: -323.6MB). Peak memory consumption was 624.7MB. Max. memory is 16.1GB. [2025-03-09 06:22:31,617 INFO L158 Benchmark]: CDTParser took 0.96ms. Allocated memory is still 201.3MB. Free memory is still 126.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:22:31,617 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.36ms. Allocated memory is still 142.6MB. Free memory was 103.0MB in the beginning and 84.8MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 06:22:31,618 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.52ms. Allocated memory is still 142.6MB. Free memory was 83.9MB in the beginning and 82.9MB in the end (delta: 994.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:22:31,618 INFO L158 Benchmark]: Boogie Preprocessor took 20.67ms. Allocated memory is still 142.6MB. Free memory was 82.9MB in the beginning and 81.9MB in the end (delta: 994.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:22:31,618 INFO L158 Benchmark]: IcfgBuilder took 346.12ms. Allocated memory is still 142.6MB. Free memory was 81.9MB in the beginning and 61.1MB in the end (delta: 20.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 06:22:31,618 INFO L158 Benchmark]: TraceAbstraction took 16240.93ms. Allocated memory was 142.6MB in the beginning and 1.1GB in the end (delta: 947.9MB). Free memory was 61.1MB in the beginning and 432.0MB in the end (delta: -370.9MB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2025-03-09 06:22:31,618 INFO L158 Benchmark]: Witness Printer took 57.13ms. Allocated memory is still 1.1GB. Free memory was 432.0MB in the beginning and 427.6MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:22:31,619 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.96ms. Allocated memory is still 201.3MB. Free memory is still 126.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.36ms. Allocated memory is still 142.6MB. Free memory was 103.0MB in the beginning and 84.8MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.52ms. Allocated memory is still 142.6MB. Free memory was 83.9MB in the beginning and 82.9MB in the end (delta: 994.1kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.67ms. Allocated memory is still 142.6MB. Free memory was 82.9MB in the beginning and 81.9MB in the end (delta: 994.1kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 346.12ms. Allocated memory is still 142.6MB. Free memory was 81.9MB in the beginning and 61.1MB in the end (delta: 20.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 16240.93ms. Allocated memory was 142.6MB in the beginning and 1.1GB in the end (delta: 947.9MB). Free memory was 61.1MB in the beginning and 432.0MB in the end (delta: -370.9MB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. * Witness Printer took 57.13ms. Allocated memory is still 1.1GB. Free memory was 432.0MB in the beginning and 427.6MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 698]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 698]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 706]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 706]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 704]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 704]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 55 locations, 56 edges, 18 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: 16.2s, OverallIterations: 19, TraceHistogramMax: 12, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 11.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2125 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2098 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3326 IncrementalHoareTripleChecker+Invalid, 3378 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 16 mSDtfsCounter, 3326 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 579 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1481 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=842occurred in iteration=18, InterpolantAutomatonStates: 141, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 670 NumberOfCodeBlocks, 670 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 780 ConstructedInterpolants, 0 QuantifiedInterpolants, 2238 SizeOfPredicates, 37 NumberOfNonLiveVariables, 998 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 30 InterpolantComputations, 15 PerfectInterpolantSequences, 402/1220 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-09 06:22:31,633 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