./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_07-ps_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/04-mutex_07-ps_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 01b589988edaaecd88451f82bd4303dff81e52948b89e1e090cb7433d59bd20b --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 19:35:54,142 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 19:35:54,202 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 19:35:54,207 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 19:35:54,208 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 19:35:54,232 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 19:35:54,234 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 19:35:54,234 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 19:35:54,234 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 19:35:54,234 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 19:35:54,235 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 19:35:54,235 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 19:35:54,236 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 19:35:54,236 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 19:35:54,236 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 19:35:54,236 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 19:35:54,236 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 19:35:54,237 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 19:35:54,237 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 19:35:54,237 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 19:35:54,237 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 19:35:54,237 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 19:35:54,237 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 19:35:54,237 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 19:35:54,237 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 19:35:54,237 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 19:35:54,237 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 19:35:54,237 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 19:35:54,237 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 19:35:54,237 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 19:35:54,237 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 19:35:54,237 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 19:35:54,237 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 19:35:54,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 19:35:54,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:35:54,238 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 19:35:54,238 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 19:35:54,238 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 19:35:54,238 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 19:35:54,238 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 19:35:54,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 19:35:54,238 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 19:35:54,238 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 19:35:54,238 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 19:35:54,238 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 19:35:54,238 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 -> 01b589988edaaecd88451f82bd4303dff81e52948b89e1e090cb7433d59bd20b [2025-03-17 19:35:54,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 19:35:54,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 19:35:54,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 19:35:54,478 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 19:35:54,478 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 19:35:54,479 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_07-ps_nr.i [2025-03-17 19:35:55,756 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2955f76fd/f6903b65503e4b16a0c35065d3bdc721/FLAG012b2c2ae [2025-03-17 19:35:56,026 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 19:35:56,027 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_07-ps_nr.i [2025-03-17 19:35:56,044 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2955f76fd/f6903b65503e4b16a0c35065d3bdc721/FLAG012b2c2ae [2025-03-17 19:35:56,320 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2955f76fd/f6903b65503e4b16a0c35065d3bdc721 [2025-03-17 19:35:56,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 19:35:56,323 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 19:35:56,324 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 19:35:56,324 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 19:35:56,327 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 19:35:56,328 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:35:56" (1/1) ... [2025-03-17 19:35:56,329 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b6d7881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:56, skipping insertion in model container [2025-03-17 19:35:56,329 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:35:56" (1/1) ... [2025-03-17 19:35:56,357 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 19:35:56,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:35:56,585 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 19:35:56,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:35:56,673 INFO L204 MainTranslator]: Completed translation [2025-03-17 19:35:56,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:56 WrapperNode [2025-03-17 19:35:56,674 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 19:35:56,674 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 19:35:56,675 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 19:35:56,675 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 19:35:56,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:56" (1/1) ... [2025-03-17 19:35:56,690 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:56" (1/1) ... [2025-03-17 19:35:56,706 INFO L138 Inliner]: procedures = 266, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2025-03-17 19:35:56,706 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 19:35:56,706 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 19:35:56,706 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 19:35:56,707 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 19:35:56,714 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:56" (1/1) ... [2025-03-17 19:35:56,714 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:56" (1/1) ... [2025-03-17 19:35:56,716 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:56" (1/1) ... [2025-03-17 19:35:56,726 INFO L175 MemorySlicer]: Split 5 memory accesses to 1 slices as follows [5]. 100 percent of accesses are in the largest equivalence class. The 5 initializations are split as follows [5]. The 0 writes are split as follows [0]. [2025-03-17 19:35:56,728 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:56" (1/1) ... [2025-03-17 19:35:56,728 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:56" (1/1) ... [2025-03-17 19:35:56,732 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:56" (1/1) ... [2025-03-17 19:35:56,732 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:56" (1/1) ... [2025-03-17 19:35:56,733 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:56" (1/1) ... [2025-03-17 19:35:56,734 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:56" (1/1) ... [2025-03-17 19:35:56,735 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 19:35:56,736 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 19:35:56,737 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 19:35:56,737 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 19:35:56,737 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:56" (1/1) ... [2025-03-17 19:35:56,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:35:56,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:35:56,765 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 19:35:56,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 19:35:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-17 19:35:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-17 19:35:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 19:35:56,790 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-17 19:35:56,790 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-17 19:35:56,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 19:35:56,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 19:35:56,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 19:35:56,794 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 19:35:56,881 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 19:35:56,883 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 19:35:57,019 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 19:35:57,019 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 19:35:57,087 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 19:35:57,088 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 19:35:57,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:35:57 BoogieIcfgContainer [2025-03-17 19:35:57,088 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 19:35:57,090 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 19:35:57,090 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 19:35:57,093 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 19:35:57,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:35:56" (1/3) ... [2025-03-17 19:35:57,094 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f2f8c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:35:57, skipping insertion in model container [2025-03-17 19:35:57,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:35:56" (2/3) ... [2025-03-17 19:35:57,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f2f8c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:35:57, skipping insertion in model container [2025-03-17 19:35:57,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:35:57" (3/3) ... [2025-03-17 19:35:57,096 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_07-ps_nr.i [2025-03-17 19:35:57,108 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 19:35:57,109 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_07-ps_nr.i that has 2 procedures, 26 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-03-17 19:35:57,109 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 19:35:57,140 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 19:35:57,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 28 transitions, 60 flow [2025-03-17 19:35:57,190 INFO L124 PetriNetUnfolderBase]: 3/27 cut-off events. [2025-03-17 19:35:57,192 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 19:35:57,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 27 events. 3/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 54 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2025-03-17 19:35:57,195 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 28 transitions, 60 flow [2025-03-17 19:35:57,197 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 27 transitions, 57 flow [2025-03-17 19:35:57,202 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 19:35:57,211 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;@69f963f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 19:35:57,211 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-03-17 19:35:57,216 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 19:35:57,217 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2025-03-17 19:35:57,217 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 19:35:57,217 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:35:57,218 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-17 19:35:57,218 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-17 19:35:57,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:35:57,224 INFO L85 PathProgramCache]: Analyzing trace with hash 369368889, now seen corresponding path program 1 times [2025-03-17 19:35:57,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:35:57,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252403871] [2025-03-17 19:35:57,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:35:57,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:35:57,298 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:35:57,309 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:35:57,309 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:35:57,309 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:35:57,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:35:57,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:35:57,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252403871] [2025-03-17 19:35:57,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252403871] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:35:57,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:35:57,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:35:57,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114008269] [2025-03-17 19:35:57,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:35:57,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:35:57,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:35:57,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:35:57,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:35:57,465 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 28 [2025-03-17 19:35:57,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 27 transitions, 57 flow. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:35:57,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:35:57,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 28 [2025-03-17 19:35:57,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:35:57,586 INFO L124 PetriNetUnfolderBase]: 72/173 cut-off events. [2025-03-17 19:35:57,587 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 19:35:57,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 173 events. 72/173 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 713 event pairs, 15 based on Foata normal form. 11/170 useless extension candidates. Maximal degree in co-relation 310. Up to 101 conditions per place. [2025-03-17 19:35:57,591 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 23 selfloop transitions, 4 changer transitions 13/50 dead transitions. [2025-03-17 19:35:57,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 50 transitions, 183 flow [2025-03-17 19:35:57,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:35:57,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:35:57,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 99 transitions. [2025-03-17 19:35:57,602 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7071428571428572 [2025-03-17 19:35:57,603 INFO L175 Difference]: Start difference. First operand has 28 places, 27 transitions, 57 flow. Second operand 5 states and 99 transitions. [2025-03-17 19:35:57,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 50 transitions, 183 flow [2025-03-17 19:35:57,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 50 transitions, 182 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 19:35:57,610 INFO L231 Difference]: Finished difference. Result has 34 places, 28 transitions, 81 flow [2025-03-17 19:35:57,613 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=81, PETRI_PLACES=34, PETRI_TRANSITIONS=28} [2025-03-17 19:35:57,617 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 6 predicate places. [2025-03-17 19:35:57,617 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 28 transitions, 81 flow [2025-03-17 19:35:57,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:35:57,617 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:35:57,617 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:35:57,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 19:35:57,617 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-17 19:35:57,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:35:57,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1444467171, now seen corresponding path program 1 times [2025-03-17 19:35:57,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:35:57,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234364207] [2025-03-17 19:35:57,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:35:57,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:35:57,628 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:35:57,630 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:35:57,631 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:35:57,631 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:35:57,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:35:57,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:35:57,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234364207] [2025-03-17 19:35:57,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234364207] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:35:57,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:35:57,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:35:57,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112767307] [2025-03-17 19:35:57,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:35:57,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:35:57,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:35:57,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:35:57,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:35:57,659 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 28 [2025-03-17 19:35:57,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 28 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:35:57,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:35:57,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 28 [2025-03-17 19:35:57,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:35:57,722 INFO L124 PetriNetUnfolderBase]: 75/196 cut-off events. [2025-03-17 19:35:57,722 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2025-03-17 19:35:57,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 445 conditions, 196 events. 75/196 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 867 event pairs, 39 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 432. Up to 101 conditions per place. [2025-03-17 19:35:57,724 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 20 selfloop transitions, 2 changer transitions 10/39 dead transitions. [2025-03-17 19:35:57,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 39 transitions, 176 flow [2025-03-17 19:35:57,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:35:57,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 19:35:57,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2025-03-17 19:35:57,726 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-03-17 19:35:57,726 INFO L175 Difference]: Start difference. First operand has 34 places, 28 transitions, 81 flow. Second operand 3 states and 56 transitions. [2025-03-17 19:35:57,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 39 transitions, 176 flow [2025-03-17 19:35:57,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 39 transitions, 168 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-03-17 19:35:57,727 INFO L231 Difference]: Finished difference. Result has 34 places, 27 transitions, 84 flow [2025-03-17 19:35:57,727 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=34, PETRI_TRANSITIONS=27} [2025-03-17 19:35:57,729 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 6 predicate places. [2025-03-17 19:35:57,729 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 27 transitions, 84 flow [2025-03-17 19:35:57,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:35:57,729 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:35:57,729 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:35:57,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 19:35:57,729 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-17 19:35:57,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:35:57,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1829313209, now seen corresponding path program 1 times [2025-03-17 19:35:57,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:35:57,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723481717] [2025-03-17 19:35:57,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:35:57,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:35:57,742 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 19:35:57,746 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 19:35:57,746 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:35:57,748 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:35:57,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:35:57,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:35:57,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723481717] [2025-03-17 19:35:57,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723481717] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:35:57,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:35:57,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:35:57,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719987159] [2025-03-17 19:35:57,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:35:57,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:35:57,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:35:57,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:35:57,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:35:57,824 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 28 [2025-03-17 19:35:57,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:35:57,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:35:57,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 28 [2025-03-17 19:35:57,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:35:57,901 INFO L124 PetriNetUnfolderBase]: 33/110 cut-off events. [2025-03-17 19:35:57,901 INFO L125 PetriNetUnfolderBase]: For 30/32 co-relation queries the response was YES. [2025-03-17 19:35:57,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 110 events. 33/110 cut-off events. For 30/32 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 401 event pairs, 14 based on Foata normal form. 13/121 useless extension candidates. Maximal degree in co-relation 237. Up to 45 conditions per place. [2025-03-17 19:35:57,902 INFO L140 encePairwiseOnDemand]: 21/28 looper letters, 21 selfloop transitions, 6 changer transitions 4/39 dead transitions. [2025-03-17 19:35:57,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 39 transitions, 180 flow [2025-03-17 19:35:57,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:35:57,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:35:57,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2025-03-17 19:35:57,903 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6357142857142857 [2025-03-17 19:35:57,903 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 84 flow. Second operand 5 states and 89 transitions. [2025-03-17 19:35:57,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 39 transitions, 180 flow [2025-03-17 19:35:57,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 39 transitions, 172 flow, removed 3 selfloop flow, removed 1 redundant places. [2025-03-17 19:35:57,904 INFO L231 Difference]: Finished difference. Result has 40 places, 28 transitions, 110 flow [2025-03-17 19:35:57,904 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=110, PETRI_PLACES=40, PETRI_TRANSITIONS=28} [2025-03-17 19:35:57,905 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 12 predicate places. [2025-03-17 19:35:57,905 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 28 transitions, 110 flow [2025-03-17 19:35:57,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:35:57,905 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:35:57,905 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:35:57,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 19:35:57,905 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-17 19:35:57,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:35:57,905 INFO L85 PathProgramCache]: Analyzing trace with hash -36361627, now seen corresponding path program 1 times [2025-03-17 19:35:57,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:35:57,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763573203] [2025-03-17 19:35:57,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:35:57,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:35:57,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 19:35:57,922 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 19:35:57,923 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:35:57,923 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:35:57,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:35:57,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:35:57,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763573203] [2025-03-17 19:35:57,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763573203] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:35:57,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:35:57,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:35:57,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227236808] [2025-03-17 19:35:57,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:35:57,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:35:57,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:35:57,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:35:57,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:35:57,979 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 28 [2025-03-17 19:35:57,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 28 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:35:57,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:35:57,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 28 [2025-03-17 19:35:57,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:35:58,019 INFO L124 PetriNetUnfolderBase]: 10/61 cut-off events. [2025-03-17 19:35:58,019 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2025-03-17 19:35:58,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 61 events. 10/61 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 139 event pairs, 2 based on Foata normal form. 9/69 useless extension candidates. Maximal degree in co-relation 142. Up to 30 conditions per place. [2025-03-17 19:35:58,020 INFO L140 encePairwiseOnDemand]: 24/28 looper letters, 16 selfloop transitions, 4 changer transitions 2/31 dead transitions. [2025-03-17 19:35:58,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 31 transitions, 163 flow [2025-03-17 19:35:58,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:35:58,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 19:35:58,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2025-03-17 19:35:58,021 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7023809523809523 [2025-03-17 19:35:58,021 INFO L175 Difference]: Start difference. First operand has 40 places, 28 transitions, 110 flow. Second operand 3 states and 59 transitions. [2025-03-17 19:35:58,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 31 transitions, 163 flow [2025-03-17 19:35:58,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 31 transitions, 146 flow, removed 2 selfloop flow, removed 3 redundant places. [2025-03-17 19:35:58,023 INFO L231 Difference]: Finished difference. Result has 39 places, 26 transitions, 96 flow [2025-03-17 19:35:58,023 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=39, PETRI_TRANSITIONS=26} [2025-03-17 19:35:58,023 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 11 predicate places. [2025-03-17 19:35:58,024 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 26 transitions, 96 flow [2025-03-17 19:35:58,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:35:58,024 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:35:58,024 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:35:58,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 19:35:58,025 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-17 19:35:58,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:35:58,025 INFO L85 PathProgramCache]: Analyzing trace with hash -798939510, now seen corresponding path program 1 times [2025-03-17 19:35:58,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:35:58,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327056161] [2025-03-17 19:35:58,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:35:58,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:35:58,034 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 19:35:58,041 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 19:35:58,041 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:35:58,041 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:35:58,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:35:58,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:35:58,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327056161] [2025-03-17 19:35:58,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327056161] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:35:58,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:35:58,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:35:58,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870641690] [2025-03-17 19:35:58,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:35:58,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:35:58,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:35:58,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:35:58,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:35:58,128 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 28 [2025-03-17 19:35:58,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 26 transitions, 96 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) [2025-03-17 19:35:58,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:35:58,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 28 [2025-03-17 19:35:58,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:35:58,236 INFO L124 PetriNetUnfolderBase]: 13/60 cut-off events. [2025-03-17 19:35:58,237 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2025-03-17 19:35:58,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 60 events. 13/60 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 119 event pairs, 7 based on Foata normal form. 2/61 useless extension candidates. Maximal degree in co-relation 142. Up to 17 conditions per place. [2025-03-17 19:35:58,239 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 21 selfloop transitions, 5 changer transitions 0/31 dead transitions. [2025-03-17 19:35:58,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 31 transitions, 160 flow [2025-03-17 19:35:58,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:35:58,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:35:58,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 81 transitions. [2025-03-17 19:35:58,242 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48214285714285715 [2025-03-17 19:35:58,243 INFO L175 Difference]: Start difference. First operand has 39 places, 26 transitions, 96 flow. Second operand 6 states and 81 transitions. [2025-03-17 19:35:58,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 31 transitions, 160 flow [2025-03-17 19:35:58,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 31 transitions, 152 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-17 19:35:58,244 INFO L231 Difference]: Finished difference. Result has 40 places, 25 transitions, 96 flow [2025-03-17 19:35:58,244 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=96, PETRI_PLACES=40, PETRI_TRANSITIONS=25} [2025-03-17 19:35:58,244 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 12 predicate places. [2025-03-17 19:35:58,244 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 25 transitions, 96 flow [2025-03-17 19:35:58,244 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) [2025-03-17 19:35:58,244 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:35:58,244 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:35:58,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 19:35:58,244 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-17 19:35:58,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:35:58,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1419948447, now seen corresponding path program 1 times [2025-03-17 19:35:58,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:35:58,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336100638] [2025-03-17 19:35:58,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:35:58,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:35:58,254 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-17 19:35:58,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-17 19:35:58,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:35:58,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:35:58,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:35:58,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:35:58,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336100638] [2025-03-17 19:35:58,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336100638] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:35:58,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:35:58,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:35:58,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986209642] [2025-03-17 19:35:58,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:35:58,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:35:58,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:35:58,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:35:58,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:35:58,338 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 28 [2025-03-17 19:35:58,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 25 transitions, 96 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) [2025-03-17 19:35:58,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:35:58,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 28 [2025-03-17 19:35:58,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:35:58,434 INFO L124 PetriNetUnfolderBase]: 12/56 cut-off events. [2025-03-17 19:35:58,436 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2025-03-17 19:35:58,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 56 events. 12/56 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 106 event pairs, 3 based on Foata normal form. 2/57 useless extension candidates. Maximal degree in co-relation 128. Up to 15 conditions per place. [2025-03-17 19:35:58,436 INFO L140 encePairwiseOnDemand]: 21/28 looper letters, 14 selfloop transitions, 4 changer transitions 11/34 dead transitions. [2025-03-17 19:35:58,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 34 transitions, 179 flow [2025-03-17 19:35:58,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 19:35:58,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-17 19:35:58,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 102 transitions. [2025-03-17 19:35:58,438 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45535714285714285 [2025-03-17 19:35:58,438 INFO L175 Difference]: Start difference. First operand has 40 places, 25 transitions, 96 flow. Second operand 8 states and 102 transitions. [2025-03-17 19:35:58,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 34 transitions, 179 flow [2025-03-17 19:35:58,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 34 transitions, 165 flow, removed 1 selfloop flow, removed 5 redundant places. [2025-03-17 19:35:58,445 INFO L231 Difference]: Finished difference. Result has 41 places, 19 transitions, 65 flow [2025-03-17 19:35:58,445 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=65, PETRI_PLACES=41, PETRI_TRANSITIONS=19} [2025-03-17 19:35:58,445 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 13 predicate places. [2025-03-17 19:35:58,445 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 19 transitions, 65 flow [2025-03-17 19:35:58,445 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) [2025-03-17 19:35:58,445 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:35:58,445 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:35:58,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 19:35:58,446 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-17 19:35:58,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:35:58,446 INFO L85 PathProgramCache]: Analyzing trace with hash 543407082, now seen corresponding path program 1 times [2025-03-17 19:35:58,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:35:58,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365726909] [2025-03-17 19:35:58,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:35:58,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:35:58,462 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 19:35:58,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 19:35:58,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:35:58,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:35:58,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:35:58,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:35:58,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365726909] [2025-03-17 19:35:58,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365726909] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:35:58,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:35:58,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:35:58,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417122965] [2025-03-17 19:35:58,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:35:58,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:35:58,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:35:58,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:35:58,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:35:58,542 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 28 [2025-03-17 19:35:58,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 19 transitions, 65 flow. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:35:58,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:35:58,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 28 [2025-03-17 19:35:58,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:35:58,598 INFO L124 PetriNetUnfolderBase]: 4/29 cut-off events. [2025-03-17 19:35:58,598 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2025-03-17 19:35:58,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 29 events. 4/29 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 1 based on Foata normal form. 2/30 useless extension candidates. Maximal degree in co-relation 60. Up to 8 conditions per place. [2025-03-17 19:35:58,598 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 10 selfloop transitions, 7 changer transitions 1/23 dead transitions. [2025-03-17 19:35:58,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 23 transitions, 115 flow [2025-03-17 19:35:58,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 19:35:58,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-17 19:35:58,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 92 transitions. [2025-03-17 19:35:58,600 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4107142857142857 [2025-03-17 19:35:58,600 INFO L175 Difference]: Start difference. First operand has 41 places, 19 transitions, 65 flow. Second operand 8 states and 92 transitions. [2025-03-17 19:35:58,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 23 transitions, 115 flow [2025-03-17 19:35:58,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 23 transitions, 95 flow, removed 2 selfloop flow, removed 8 redundant places. [2025-03-17 19:35:58,600 INFO L231 Difference]: Finished difference. Result has 30 places, 20 transitions, 65 flow [2025-03-17 19:35:58,600 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=65, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2025-03-17 19:35:58,601 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 2 predicate places. [2025-03-17 19:35:58,601 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 65 flow [2025-03-17 19:35:58,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:35:58,601 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:35:58,601 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:35:58,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 19:35:58,601 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-17 19:35:58,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:35:58,601 INFO L85 PathProgramCache]: Analyzing trace with hash 433355468, now seen corresponding path program 1 times [2025-03-17 19:35:58,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:35:58,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848978475] [2025-03-17 19:35:58,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:35:58,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:35:58,610 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-17 19:35:58,613 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 19:35:58,613 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:35:58,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:35:58,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:35:58,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:35:58,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848978475] [2025-03-17 19:35:58,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848978475] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:35:58,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:35:58,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:35:58,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132728904] [2025-03-17 19:35:58,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:35:58,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:35:58,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:35:58,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:35:58,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:35:58,670 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 28 [2025-03-17 19:35:58,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 65 flow. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:35:58,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:35:58,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 28 [2025-03-17 19:35:58,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:35:58,721 INFO L124 PetriNetUnfolderBase]: 3/26 cut-off events. [2025-03-17 19:35:58,721 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-03-17 19:35:58,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 26 events. 3/26 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 1 based on Foata normal form. 2/27 useless extension candidates. Maximal degree in co-relation 52. Up to 8 conditions per place. [2025-03-17 19:35:58,721 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2025-03-17 19:35:58,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 21 transitions, 101 flow [2025-03-17 19:35:58,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 19:35:58,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-17 19:35:58,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 90 transitions. [2025-03-17 19:35:58,723 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4017857142857143 [2025-03-17 19:35:58,723 INFO L175 Difference]: Start difference. First operand has 30 places, 20 transitions, 65 flow. Second operand 8 states and 90 transitions. [2025-03-17 19:35:58,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 21 transitions, 101 flow [2025-03-17 19:35:58,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 21 transitions, 90 flow, removed 2 selfloop flow, removed 4 redundant places. [2025-03-17 19:35:58,724 INFO L231 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2025-03-17 19:35:58,724 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2025-03-17 19:35:58,724 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 4 predicate places. [2025-03-17 19:35:58,724 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 0 transitions, 0 flow [2025-03-17 19:35:58,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:35:58,726 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2025-03-17 19:35:58,726 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2025-03-17 19:35:58,726 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-03-17 19:35:58,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2025-03-17 19:35:58,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2025-03-17 19:35:58,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2025-03-17 19:35:58,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2025-03-17 19:35:58,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 19:35:58,728 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:35:58,732 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-17 19:35:58,732 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 19:35:58,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 07:35:58 BasicIcfg [2025-03-17 19:35:58,738 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 19:35:58,738 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 19:35:58,738 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 19:35:58,738 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 19:35:58,739 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:35:57" (3/4) ... [2025-03-17 19:35:58,740 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-17 19:35:58,742 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-03-17 19:35:58,744 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2025-03-17 19:35:58,745 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-03-17 19:35:58,745 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-17 19:35:58,745 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-17 19:35:58,799 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 19:35:58,800 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 19:35:58,800 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 19:35:58,800 INFO L158 Benchmark]: Toolchain (without parser) took 2476.75ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 49.1MB in the end (delta: 61.8MB). Peak memory consumption was 62.0MB. Max. memory is 16.1GB. [2025-03-17 19:35:58,800 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 122.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:35:58,801 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.52ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 83.9MB in the end (delta: 27.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-17 19:35:58,801 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.66ms. Allocated memory is still 142.6MB. Free memory was 83.9MB in the beginning and 82.0MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:35:58,801 INFO L158 Benchmark]: Boogie Preprocessor took 28.63ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 80.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:35:58,802 INFO L158 Benchmark]: IcfgBuilder took 351.50ms. Allocated memory is still 142.6MB. Free memory was 80.6MB in the beginning and 62.0MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 19:35:58,802 INFO L158 Benchmark]: TraceAbstraction took 1647.96ms. Allocated memory is still 142.6MB. Free memory was 61.1MB in the beginning and 54.6MB in the end (delta: 6.5MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2025-03-17 19:35:58,802 INFO L158 Benchmark]: Witness Printer took 61.49ms. Allocated memory is still 142.6MB. Free memory was 54.6MB in the beginning and 49.1MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:35:58,803 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 122.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.52ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 83.9MB in the end (delta: 27.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.66ms. Allocated memory is still 142.6MB. Free memory was 83.9MB in the beginning and 82.0MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.63ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 80.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 351.50ms. Allocated memory is still 142.6MB. Free memory was 80.6MB in the beginning and 62.0MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1647.96ms. Allocated memory is still 142.6MB. Free memory was 61.1MB in the beginning and 54.6MB in the end (delta: 6.5MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. * Witness Printer took 61.49ms. Allocated memory is still 142.6MB. Free memory was 54.6MB in the beginning and 49.1MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 945]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 945]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 37 locations, 38 edges, 7 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: 1.6s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 203 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 157 mSDsluCounter, 110 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 93 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 490 IncrementalHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 17 mSDtfsCounter, 490 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=3, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 250 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-17 19:35:58,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE