./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 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:45:24,005 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:45:24,072 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:45:24,076 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:45:24,079 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:45:24,108 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:45:24,109 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:45:24,109 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:45:24,110 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:45:24,111 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:45:24,112 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:45:24,112 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:45:24,112 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:45:24,113 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:45:24,115 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:45:24,115 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:45:24,115 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:45:24,115 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:45:24,116 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:45:24,116 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:45:24,116 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:45:24,116 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:45:24,117 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:45:24,117 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:45:24,117 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:45:24,118 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:45:24,118 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:45:24,118 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:45:24,118 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:45:24,119 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:45:24,119 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:45:24,119 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:45:24,120 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:45:24,120 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:45:24,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:45:24,120 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:45:24,121 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:45:24,121 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:45:24,121 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:45:24,121 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:45:24,122 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:45:24,122 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:45:24,122 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:45:24,123 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:45:24,123 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01b589988edaaecd88451f82bd4303dff81e52948b89e1e090cb7433d59bd20b [2024-11-17 07:45:24,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:45:24,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:45:24,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:45:24,463 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:45:24,463 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:45:24,464 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_07-ps_nr.i [2024-11-17 07:45:25,863 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:45:26,168 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:45:26,169 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_07-ps_nr.i [2024-11-17 07:45:26,193 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ece9c9784/2dbce9a33a9846ac9a2645bb3bf2c799/FLAG969903e94 [2024-11-17 07:45:26,454 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ece9c9784/2dbce9a33a9846ac9a2645bb3bf2c799 [2024-11-17 07:45:26,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:45:26,457 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:45:26,458 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:45:26,458 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:45:26,463 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:45:26,464 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:45:26" (1/1) ... [2024-11-17 07:45:26,464 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ab18a21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:26, skipping insertion in model container [2024-11-17 07:45:26,464 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:45:26" (1/1) ... [2024-11-17 07:45:26,506 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:45:26,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:45:26,919 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:45:26,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:45:27,028 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:45:27,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:27 WrapperNode [2024-11-17 07:45:27,029 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:45:27,030 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:45:27,030 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:45:27,030 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:45:27,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:27" (1/1) ... [2024-11-17 07:45:27,057 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:27" (1/1) ... [2024-11-17 07:45:27,082 INFO L138 Inliner]: procedures = 266, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2024-11-17 07:45:27,083 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:45:27,084 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:45:27,084 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:45:27,084 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:45:27,093 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:27" (1/1) ... [2024-11-17 07:45:27,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:27" (1/1) ... [2024-11-17 07:45:27,097 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:27" (1/1) ... [2024-11-17 07:45:27,113 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]. [2024-11-17 07:45:27,114 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:27" (1/1) ... [2024-11-17 07:45:27,114 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:27" (1/1) ... [2024-11-17 07:45:27,121 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:27" (1/1) ... [2024-11-17 07:45:27,122 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:27" (1/1) ... [2024-11-17 07:45:27,126 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:27" (1/1) ... [2024-11-17 07:45:27,127 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:27" (1/1) ... [2024-11-17 07:45:27,129 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:45:27,132 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:45:27,132 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:45:27,132 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:45:27,133 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:27" (1/1) ... [2024-11-17 07:45:27,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:45:27,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:45:27,171 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) [2024-11-17 07:45:27,174 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 [2024-11-17 07:45:27,246 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-17 07:45:27,249 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-17 07:45:27,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:45:27,249 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-17 07:45:27,249 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-17 07:45:27,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:45:27,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:45:27,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:45:27,251 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:45:27,383 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:45:27,385 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:45:27,523 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:45:27,524 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:45:27,631 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:45:27,631 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:45:27,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:45:27 BoogieIcfgContainer [2024-11-17 07:45:27,635 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:45:27,637 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:45:27,637 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:45:27,642 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:45:27,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:45:26" (1/3) ... [2024-11-17 07:45:27,643 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fdd90e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:45:27, skipping insertion in model container [2024-11-17 07:45:27,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:45:27" (2/3) ... [2024-11-17 07:45:27,643 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fdd90e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:45:27, skipping insertion in model container [2024-11-17 07:45:27,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:45:27" (3/3) ... [2024-11-17 07:45:27,645 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_07-ps_nr.i [2024-11-17 07:45:27,660 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:45:27,660 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-17 07:45:27,660 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:45:27,697 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-17 07:45:27,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 28 transitions, 60 flow [2024-11-17 07:45:27,744 INFO L124 PetriNetUnfolderBase]: 3/27 cut-off events. [2024-11-17 07:45:27,744 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:45:27,747 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 53 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. [2024-11-17 07:45:27,747 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 28 transitions, 60 flow [2024-11-17 07:45:27,749 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 27 transitions, 57 flow [2024-11-17 07:45:27,758 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:45:27,764 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;@7ba3356b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:45:27,764 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-17 07:45:27,771 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:45:27,771 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2024-11-17 07:45:27,772 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:45:27,772 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:45:27,772 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 07:45:27,773 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)] === [2024-11-17 07:45:27,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:45:27,782 INFO L85 PathProgramCache]: Analyzing trace with hash 427581496, now seen corresponding path program 1 times [2024-11-17 07:45:27,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:45:27,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818058604] [2024-11-17 07:45:27,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:27,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:45:27,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:28,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:28,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:45:28,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818058604] [2024-11-17 07:45:28,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818058604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:45:28,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:45:28,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:45:28,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22274914] [2024-11-17 07:45:28,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:45:28,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:45:28,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:45:28,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:45:28,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:45:28,154 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 28 [2024-11-17 07:45:28,157 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) [2024-11-17 07:45:28,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:45:28,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 28 [2024-11-17 07:45:28,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:45:28,297 INFO L124 PetriNetUnfolderBase]: 72/173 cut-off events. [2024-11-17 07:45:28,298 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:45:28,299 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 703 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. [2024-11-17 07:45:28,302 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 23 selfloop transitions, 4 changer transitions 13/50 dead transitions. [2024-11-17 07:45:28,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 50 transitions, 183 flow [2024-11-17 07:45:28,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:45:28,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:45:28,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 99 transitions. [2024-11-17 07:45:28,314 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7071428571428572 [2024-11-17 07:45:28,316 INFO L175 Difference]: Start difference. First operand has 28 places, 27 transitions, 57 flow. Second operand 5 states and 99 transitions. [2024-11-17 07:45:28,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 50 transitions, 183 flow [2024-11-17 07:45:28,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 50 transitions, 182 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:45:28,323 INFO L231 Difference]: Finished difference. Result has 34 places, 28 transitions, 81 flow [2024-11-17 07:45:28,325 INFO L260 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} [2024-11-17 07:45:28,330 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 6 predicate places. [2024-11-17 07:45:28,330 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 28 transitions, 81 flow [2024-11-17 07:45:28,331 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) [2024-11-17 07:45:28,331 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:45:28,331 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:45:28,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:45:28,332 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)] === [2024-11-17 07:45:28,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:45:28,333 INFO L85 PathProgramCache]: Analyzing trace with hash 361048192, now seen corresponding path program 1 times [2024-11-17 07:45:28,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:45:28,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396899937] [2024-11-17 07:45:28,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:28,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:45:28,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:28,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:28,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:45:28,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396899937] [2024-11-17 07:45:28,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396899937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:45:28,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:45:28,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:45:28,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836402769] [2024-11-17 07:45:28,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:45:28,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:45:28,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:45:28,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:45:28,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:45:28,402 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 28 [2024-11-17 07:45:28,402 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) [2024-11-17 07:45:28,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:45:28,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 28 [2024-11-17 07:45:28,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:45:28,483 INFO L124 PetriNetUnfolderBase]: 75/196 cut-off events. [2024-11-17 07:45:28,484 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2024-11-17 07:45:28,485 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 863 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. [2024-11-17 07:45:28,486 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 20 selfloop transitions, 2 changer transitions 10/39 dead transitions. [2024-11-17 07:45:28,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 39 transitions, 176 flow [2024-11-17 07:45:28,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:45:28,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:45:28,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2024-11-17 07:45:28,488 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-17 07:45:28,488 INFO L175 Difference]: Start difference. First operand has 34 places, 28 transitions, 81 flow. Second operand 3 states and 56 transitions. [2024-11-17 07:45:28,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 39 transitions, 176 flow [2024-11-17 07:45:28,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 39 transitions, 168 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-17 07:45:28,491 INFO L231 Difference]: Finished difference. Result has 34 places, 27 transitions, 84 flow [2024-11-17 07:45:28,491 INFO L260 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} [2024-11-17 07:45:28,492 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 6 predicate places. [2024-11-17 07:45:28,492 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 27 transitions, 84 flow [2024-11-17 07:45:28,493 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) [2024-11-17 07:45:28,493 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:45:28,493 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:45:28,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 07:45:28,494 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)] === [2024-11-17 07:45:28,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:45:28,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1692912732, now seen corresponding path program 1 times [2024-11-17 07:45:28,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:45:28,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713098612] [2024-11-17 07:45:28,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:28,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:45:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:28,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:28,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:45:28,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713098612] [2024-11-17 07:45:28,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713098612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:45:28,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:45:28,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:45:28,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284873143] [2024-11-17 07:45:28,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:45:28,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:45:28,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:45:28,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:45:28,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:45:28,613 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 28 [2024-11-17 07:45:28,614 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) [2024-11-17 07:45:28,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:45:28,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 28 [2024-11-17 07:45:28,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:45:28,698 INFO L124 PetriNetUnfolderBase]: 33/110 cut-off events. [2024-11-17 07:45:28,699 INFO L125 PetriNetUnfolderBase]: For 30/32 co-relation queries the response was YES. [2024-11-17 07:45:28,700 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 402 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. [2024-11-17 07:45:28,700 INFO L140 encePairwiseOnDemand]: 21/28 looper letters, 21 selfloop transitions, 6 changer transitions 4/39 dead transitions. [2024-11-17 07:45:28,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 39 transitions, 180 flow [2024-11-17 07:45:28,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:45:28,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:45:28,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2024-11-17 07:45:28,703 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6357142857142857 [2024-11-17 07:45:28,703 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 84 flow. Second operand 5 states and 89 transitions. [2024-11-17 07:45:28,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 39 transitions, 180 flow [2024-11-17 07:45:28,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 39 transitions, 172 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-17 07:45:28,709 INFO L231 Difference]: Finished difference. Result has 40 places, 28 transitions, 110 flow [2024-11-17 07:45:28,710 INFO L260 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} [2024-11-17 07:45:28,710 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 12 predicate places. [2024-11-17 07:45:28,711 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 28 transitions, 110 flow [2024-11-17 07:45:28,711 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) [2024-11-17 07:45:28,711 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:45:28,711 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:45:28,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 07:45:28,712 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)] === [2024-11-17 07:45:28,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:45:28,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1721171261, now seen corresponding path program 1 times [2024-11-17 07:45:28,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:45:28,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207609719] [2024-11-17 07:45:28,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:28,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:45:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:28,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:28,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:45:28,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207609719] [2024-11-17 07:45:28,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207609719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:45:28,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:45:28,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:45:28,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045038959] [2024-11-17 07:45:28,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:45:28,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:45:28,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:45:28,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:45:28,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:45:28,812 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 28 [2024-11-17 07:45:28,813 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) [2024-11-17 07:45:28,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:45:28,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 28 [2024-11-17 07:45:28,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:45:28,863 INFO L124 PetriNetUnfolderBase]: 10/61 cut-off events. [2024-11-17 07:45:28,863 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-11-17 07:45:28,864 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 136 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. [2024-11-17 07:45:28,865 INFO L140 encePairwiseOnDemand]: 24/28 looper letters, 16 selfloop transitions, 4 changer transitions 2/31 dead transitions. [2024-11-17 07:45:28,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 31 transitions, 163 flow [2024-11-17 07:45:28,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:45:28,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:45:28,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2024-11-17 07:45:28,867 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7023809523809523 [2024-11-17 07:45:28,867 INFO L175 Difference]: Start difference. First operand has 40 places, 28 transitions, 110 flow. Second operand 3 states and 59 transitions. [2024-11-17 07:45:28,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 31 transitions, 163 flow [2024-11-17 07:45:28,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 31 transitions, 146 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-17 07:45:28,869 INFO L231 Difference]: Finished difference. Result has 39 places, 26 transitions, 96 flow [2024-11-17 07:45:28,869 INFO L260 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} [2024-11-17 07:45:28,872 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 11 predicate places. [2024-11-17 07:45:28,873 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 26 transitions, 96 flow [2024-11-17 07:45:28,873 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) [2024-11-17 07:45:28,874 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:45:28,874 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:45:28,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 07:45:28,874 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)] === [2024-11-17 07:45:28,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:45:28,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1208228359, now seen corresponding path program 1 times [2024-11-17 07:45:28,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:45:28,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011197617] [2024-11-17 07:45:28,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:28,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:45:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:28,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:28,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:45:28,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011197617] [2024-11-17 07:45:28,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011197617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:45:28,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:45:28,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:45:28,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709466723] [2024-11-17 07:45:28,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:45:28,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:45:28,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:45:28,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:45:28,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:45:29,011 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 28 [2024-11-17 07:45:29,012 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) [2024-11-17 07:45:29,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:45:29,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 28 [2024-11-17 07:45:29,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:45:29,104 INFO L124 PetriNetUnfolderBase]: 13/60 cut-off events. [2024-11-17 07:45:29,104 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-11-17 07:45:29,105 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. [2024-11-17 07:45:29,108 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 21 selfloop transitions, 5 changer transitions 0/31 dead transitions. [2024-11-17 07:45:29,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 31 transitions, 160 flow [2024-11-17 07:45:29,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:45:29,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:45:29,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 81 transitions. [2024-11-17 07:45:29,110 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48214285714285715 [2024-11-17 07:45:29,110 INFO L175 Difference]: Start difference. First operand has 39 places, 26 transitions, 96 flow. Second operand 6 states and 81 transitions. [2024-11-17 07:45:29,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 31 transitions, 160 flow [2024-11-17 07:45:29,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 31 transitions, 152 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-17 07:45:29,113 INFO L231 Difference]: Finished difference. Result has 40 places, 25 transitions, 96 flow [2024-11-17 07:45:29,113 INFO L260 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} [2024-11-17 07:45:29,114 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 12 predicate places. [2024-11-17 07:45:29,114 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 25 transitions, 96 flow [2024-11-17 07:45:29,116 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) [2024-11-17 07:45:29,116 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:45:29,116 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:45:29,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 07:45:29,117 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)] === [2024-11-17 07:45:29,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:45:29,118 INFO L85 PathProgramCache]: Analyzing trace with hash -2011741699, now seen corresponding path program 1 times [2024-11-17 07:45:29,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:45:29,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792861581] [2024-11-17 07:45:29,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:29,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:45:29,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:29,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:29,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:45:29,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792861581] [2024-11-17 07:45:29,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792861581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:45:29,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:45:29,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:45:29,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578934099] [2024-11-17 07:45:29,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:45:29,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:45:29,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:45:29,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:45:29,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:45:29,209 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 28 [2024-11-17 07:45:29,210 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) [2024-11-17 07:45:29,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:45:29,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 28 [2024-11-17 07:45:29,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:45:29,289 INFO L124 PetriNetUnfolderBase]: 12/56 cut-off events. [2024-11-17 07:45:29,289 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-11-17 07:45:29,289 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 107 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. [2024-11-17 07:45:29,289 INFO L140 encePairwiseOnDemand]: 21/28 looper letters, 14 selfloop transitions, 4 changer transitions 11/34 dead transitions. [2024-11-17 07:45:29,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 34 transitions, 179 flow [2024-11-17 07:45:29,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 07:45:29,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 07:45:29,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 102 transitions. [2024-11-17 07:45:29,291 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45535714285714285 [2024-11-17 07:45:29,291 INFO L175 Difference]: Start difference. First operand has 40 places, 25 transitions, 96 flow. Second operand 8 states and 102 transitions. [2024-11-17 07:45:29,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 34 transitions, 179 flow [2024-11-17 07:45:29,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 34 transitions, 165 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-17 07:45:29,293 INFO L231 Difference]: Finished difference. Result has 41 places, 19 transitions, 65 flow [2024-11-17 07:45:29,293 INFO L260 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} [2024-11-17 07:45:29,294 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 13 predicate places. [2024-11-17 07:45:29,294 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 19 transitions, 65 flow [2024-11-17 07:45:29,294 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) [2024-11-17 07:45:29,294 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:45:29,295 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:45:29,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 07:45:29,295 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)] === [2024-11-17 07:45:29,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:45:29,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1889826835, now seen corresponding path program 1 times [2024-11-17 07:45:29,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:45:29,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276649839] [2024-11-17 07:45:29,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:29,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:45:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:29,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:29,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:45:29,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276649839] [2024-11-17 07:45:29,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276649839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:45:29,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:45:29,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:45:29,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715236887] [2024-11-17 07:45:29,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:45:29,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:45:29,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:45:29,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:45:29,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:45:29,389 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 28 [2024-11-17 07:45:29,390 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) [2024-11-17 07:45:29,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:45:29,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 28 [2024-11-17 07:45:29,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:45:29,483 INFO L124 PetriNetUnfolderBase]: 4/29 cut-off events. [2024-11-17 07:45:29,483 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-17 07:45:29,483 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. [2024-11-17 07:45:29,484 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 10 selfloop transitions, 7 changer transitions 1/23 dead transitions. [2024-11-17 07:45:29,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 23 transitions, 115 flow [2024-11-17 07:45:29,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 07:45:29,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 07:45:29,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 92 transitions. [2024-11-17 07:45:29,488 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4107142857142857 [2024-11-17 07:45:29,489 INFO L175 Difference]: Start difference. First operand has 41 places, 19 transitions, 65 flow. Second operand 8 states and 92 transitions. [2024-11-17 07:45:29,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 23 transitions, 115 flow [2024-11-17 07:45:29,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 23 transitions, 95 flow, removed 2 selfloop flow, removed 8 redundant places. [2024-11-17 07:45:29,490 INFO L231 Difference]: Finished difference. Result has 30 places, 20 transitions, 65 flow [2024-11-17 07:45:29,490 INFO L260 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} [2024-11-17 07:45:29,491 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 2 predicate places. [2024-11-17 07:45:29,491 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 65 flow [2024-11-17 07:45:29,495 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) [2024-11-17 07:45:29,495 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:45:29,496 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:45:29,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 07:45:29,496 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)] === [2024-11-17 07:45:29,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:45:29,497 INFO L85 PathProgramCache]: Analyzing trace with hash 2048444022, now seen corresponding path program 1 times [2024-11-17 07:45:29,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:45:29,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283250375] [2024-11-17 07:45:29,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:45:29,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:45:29,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:45:29,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:45:29,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:45:29,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283250375] [2024-11-17 07:45:29,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283250375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:45:29,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:45:29,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:45:29,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740175124] [2024-11-17 07:45:29,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:45:29,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:45:29,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:45:29,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:45:29,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:45:29,630 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 28 [2024-11-17 07:45:29,630 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) [2024-11-17 07:45:29,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:45:29,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 28 [2024-11-17 07:45:29,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:45:29,686 INFO L124 PetriNetUnfolderBase]: 3/26 cut-off events. [2024-11-17 07:45:29,687 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-17 07:45:29,687 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. [2024-11-17 07:45:29,687 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2024-11-17 07:45:29,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 21 transitions, 101 flow [2024-11-17 07:45:29,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 07:45:29,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 07:45:29,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 90 transitions. [2024-11-17 07:45:29,688 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4017857142857143 [2024-11-17 07:45:29,689 INFO L175 Difference]: Start difference. First operand has 30 places, 20 transitions, 65 flow. Second operand 8 states and 90 transitions. [2024-11-17 07:45:29,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 21 transitions, 101 flow [2024-11-17 07:45:29,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 21 transitions, 90 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-17 07:45:29,689 INFO L231 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2024-11-17 07:45:29,690 INFO L260 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} [2024-11-17 07:45:29,690 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 4 predicate places. [2024-11-17 07:45:29,690 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 0 transitions, 0 flow [2024-11-17 07:45:29,691 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) [2024-11-17 07:45:29,693 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2024-11-17 07:45:29,696 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2024-11-17 07:45:29,697 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-17 07:45:29,697 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2024-11-17 07:45:29,697 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2024-11-17 07:45:29,697 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2024-11-17 07:45:29,700 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2024-11-17 07:45:29,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 07:45:29,700 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:45:29,706 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 07:45:29,707 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 07:45:29,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 07:45:29 BasicIcfg [2024-11-17 07:45:29,718 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 07:45:29,719 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 07:45:29,719 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 07:45:29,719 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 07:45:29,720 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:45:27" (3/4) ... [2024-11-17 07:45:29,724 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 07:45:29,727 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-17 07:45:29,731 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2024-11-17 07:45:29,732 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-17 07:45:29,732 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-17 07:45:29,732 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-17 07:45:29,821 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 07:45:29,822 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 07:45:29,822 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 07:45:29,823 INFO L158 Benchmark]: Toolchain (without parser) took 3365.99ms. Allocated memory was 157.3MB in the beginning and 201.3MB in the end (delta: 44.0MB). Free memory was 122.9MB in the beginning and 140.4MB in the end (delta: -17.5MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2024-11-17 07:45:29,823 INFO L158 Benchmark]: CDTParser took 0.97ms. Allocated memory is still 157.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 07:45:29,823 INFO L158 Benchmark]: CACSL2BoogieTranslator took 571.27ms. Allocated memory is still 157.3MB. Free memory was 122.9MB in the beginning and 91.8MB in the end (delta: 31.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-17 07:45:29,824 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.77ms. Allocated memory is still 157.3MB. Free memory was 91.8MB in the beginning and 89.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:45:29,824 INFO L158 Benchmark]: Boogie Preprocessor took 45.04ms. Allocated memory is still 157.3MB. Free memory was 89.7MB in the beginning and 88.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 07:45:29,824 INFO L158 Benchmark]: IcfgBuilder took 503.71ms. Allocated memory is still 157.3MB. Free memory was 88.6MB in the beginning and 111.4MB in the end (delta: -22.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-17 07:45:29,825 INFO L158 Benchmark]: TraceAbstraction took 2081.41ms. Allocated memory was 157.3MB in the beginning and 201.3MB in the end (delta: 44.0MB). Free memory was 110.4MB in the beginning and 144.6MB in the end (delta: -34.2MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2024-11-17 07:45:29,825 INFO L158 Benchmark]: Witness Printer took 103.37ms. Allocated memory is still 201.3MB. Free memory was 144.6MB in the beginning and 140.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 07:45:29,829 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.97ms. Allocated memory is still 157.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 571.27ms. Allocated memory is still 157.3MB. Free memory was 122.9MB in the beginning and 91.8MB in the end (delta: 31.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.77ms. Allocated memory is still 157.3MB. Free memory was 91.8MB in the beginning and 89.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.04ms. Allocated memory is still 157.3MB. Free memory was 89.7MB in the beginning and 88.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 503.71ms. Allocated memory is still 157.3MB. Free memory was 88.6MB in the beginning and 111.4MB in the end (delta: -22.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2081.41ms. Allocated memory was 157.3MB in the beginning and 201.3MB in the end (delta: 44.0MB). Free memory was 110.4MB in the beginning and 144.6MB in the end (delta: -34.2MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * Witness Printer took 103.37ms. Allocated memory is still 201.3MB. Free memory was 144.6MB in the beginning and 140.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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, 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: 2.0s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 203 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 157 mSDsluCounter, 110 SdHoareTripleChecker+Invalid, 0.4s 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, 0.7s 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-17 07:45:29,858 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