./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d 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_46-escape_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 b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 15:02:53,985 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:02:54,067 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 15:02:54,072 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:02:54,073 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:02:54,105 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:02:54,107 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:02:54,107 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:02:54,108 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:02:54,109 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:02:54,110 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 15:02:54,110 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 15:02:54,111 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:02:54,111 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:02:54,112 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:02:54,114 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:02:54,114 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 15:02:54,114 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 15:02:54,114 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:02:54,115 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 15:02:54,115 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:02:54,116 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 15:02:54,119 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 15:02:54,119 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 15:02:54,120 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:02:54,120 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 15:02:54,120 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:02:54,120 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 15:02:54,120 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:02:54,121 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:02:54,121 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:02:54,121 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:02:54,121 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 15:02:54,122 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 15:02:54,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:02:54,123 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:02:54,123 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 15:02:54,124 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 15:02:54,124 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:02:54,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 15:02:54,125 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 15:02:54,125 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 15:02:54,125 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 15:02:54,125 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 15:02:54,126 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c [2024-11-09 15:02:54,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:02:54,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:02:54,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:02:54,453 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:02:54,454 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:02:54,455 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2024-11-09 15:02:55,841 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:02:56,078 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:02:56,078 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2024-11-09 15:02:56,103 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/513966163/f91992cf225a4784ae05d0309a9a93fd/FLAG76087ecc5 [2024-11-09 15:02:56,404 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/513966163/f91992cf225a4784ae05d0309a9a93fd [2024-11-09 15:02:56,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:02:56,407 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:02:56,408 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:02:56,409 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:02:56,415 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:02:56,416 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:02:56" (1/1) ... [2024-11-09 15:02:56,416 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45ae2d73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:56, skipping insertion in model container [2024-11-09 15:02:56,417 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:02:56" (1/1) ... [2024-11-09 15:02:56,487 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:02:56,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:02:56,911 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:02:56,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:02:57,040 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:02:57,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:57 WrapperNode [2024-11-09 15:02:57,040 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:02:57,041 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:02:57,041 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:02:57,041 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:02:57,048 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:57" (1/1) ... [2024-11-09 15:02:57,070 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:57" (1/1) ... [2024-11-09 15:02:57,091 INFO L138 Inliner]: procedures = 264, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 106 [2024-11-09 15:02:57,092 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:02:57,092 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:02:57,093 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:02:57,093 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:02:57,106 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:57" (1/1) ... [2024-11-09 15:02:57,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:57" (1/1) ... [2024-11-09 15:02:57,109 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:57" (1/1) ... [2024-11-09 15:02:57,132 INFO L175 MemorySlicer]: Split 11 memory accesses to 2 slices as follows [5, 6]. 55 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [5, 1]. The 2 writes are split as follows [0, 2]. [2024-11-09 15:02:57,132 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:57" (1/1) ... [2024-11-09 15:02:57,133 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:57" (1/1) ... [2024-11-09 15:02:57,139 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:57" (1/1) ... [2024-11-09 15:02:57,140 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:57" (1/1) ... [2024-11-09 15:02:57,142 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:57" (1/1) ... [2024-11-09 15:02:57,143 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:57" (1/1) ... [2024-11-09 15:02:57,145 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:02:57,149 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:02:57,149 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:02:57,149 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:02:57,150 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:57" (1/1) ... [2024-11-09 15:02:57,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:02:57,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:02:57,183 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) [2024-11-09 15:02:57,187 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 [2024-11-09 15:02:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 15:02:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 15:02:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 15:02:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 15:02:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 15:02:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 15:02:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 15:02:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 15:02:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 15:02:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-09 15:02:57,261 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-09 15:02:57,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 15:02:57,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 15:02:57,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:02:57,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:02:57,269 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 15:02:57,463 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:02:57,465 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:02:57,676 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 15:02:57,680 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:02:58,003 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:02:58,004 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 15:02:58,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:02:58 BoogieIcfgContainer [2024-11-09 15:02:58,005 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:02:58,007 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 15:02:58,008 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 15:02:58,011 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 15:02:58,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:02:56" (1/3) ... [2024-11-09 15:02:58,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd5d73f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:02:58, skipping insertion in model container [2024-11-09 15:02:58,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:02:57" (2/3) ... [2024-11-09 15:02:58,014 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd5d73f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:02:58, skipping insertion in model container [2024-11-09 15:02:58,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:02:58" (3/3) ... [2024-11-09 15:02:58,015 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_46-escape_nr.i [2024-11-09 15:02:58,031 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 15:02:58,032 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-09 15:02:58,032 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 15:02:58,076 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 15:02:58,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 26 transitions, 59 flow [2024-11-09 15:02:58,148 INFO L124 PetriNetUnfolderBase]: 1/25 cut-off events. [2024-11-09 15:02:58,149 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 15:02:58,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 25 events. 1/25 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 34 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 1. Up to 2 conditions per place. [2024-11-09 15:02:58,152 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 26 transitions, 59 flow [2024-11-09 15:02:58,155 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 21 transitions, 45 flow [2024-11-09 15:02:58,165 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:02:58,172 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;@475af43f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:02:58,173 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-09 15:02:58,181 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:02:58,182 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-11-09 15:02:58,182 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:02:58,183 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:02:58,201 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:02:58,203 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 15:02:58,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:02:58,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1717605375, now seen corresponding path program 1 times [2024-11-09 15:02:58,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:02:58,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88220401] [2024-11-09 15:02:58,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:58,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:02:58,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:58,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:58,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:02:58,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88220401] [2024-11-09 15:02:58,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88220401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:02:58,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:02:58,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:02:58,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669620949] [2024-11-09 15:02:58,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:02:58,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 15:02:58,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:02:58,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 15:02:58,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 15:02:58,805 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 26 [2024-11-09 15:02:58,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 21 transitions, 45 flow. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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) [2024-11-09 15:02:58,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:02:58,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 26 [2024-11-09 15:02:58,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:02:58,961 INFO L124 PetriNetUnfolderBase]: 44/130 cut-off events. [2024-11-09 15:02:58,961 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:02:58,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 130 events. 44/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 470 event pairs, 16 based on Foata normal form. 7/124 useless extension candidates. Maximal degree in co-relation 231. Up to 43 conditions per place. [2024-11-09 15:02:58,965 INFO L140 encePairwiseOnDemand]: 19/26 looper letters, 20 selfloop transitions, 7 changer transitions 5/37 dead transitions. [2024-11-09 15:02:58,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 37 transitions, 141 flow [2024-11-09 15:02:58,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:02:58,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:02:58,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 70 transitions. [2024-11-09 15:02:58,979 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44871794871794873 [2024-11-09 15:02:58,980 INFO L175 Difference]: Start difference. First operand has 25 places, 21 transitions, 45 flow. Second operand 6 states and 70 transitions. [2024-11-09 15:02:58,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 37 transitions, 141 flow [2024-11-09 15:02:58,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 37 transitions, 140 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:02:58,986 INFO L231 Difference]: Finished difference. Result has 33 places, 24 transitions, 84 flow [2024-11-09 15:02:58,988 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=84, PETRI_PLACES=33, PETRI_TRANSITIONS=24} [2024-11-09 15:02:58,992 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 8 predicate places. [2024-11-09 15:02:58,993 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 24 transitions, 84 flow [2024-11-09 15:02:58,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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) [2024-11-09 15:02:58,994 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:02:58,994 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:02:58,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 15:02:58,994 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 15:02:58,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:02:58,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1716986721, now seen corresponding path program 1 times [2024-11-09 15:02:58,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:02:58,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926451486] [2024-11-09 15:02:58,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:58,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:02:59,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:59,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:59,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:02:59,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926451486] [2024-11-09 15:02:59,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926451486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:02:59,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:02:59,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 15:02:59,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828027723] [2024-11-09 15:02:59,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:02:59,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 15:02:59,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:02:59,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 15:02:59,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 15:02:59,239 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 26 [2024-11-09 15:02:59,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 24 transitions, 84 flow. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 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) [2024-11-09 15:02:59,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:02:59,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 26 [2024-11-09 15:02:59,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:02:59,499 INFO L124 PetriNetUnfolderBase]: 36/121 cut-off events. [2024-11-09 15:02:59,500 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-11-09 15:02:59,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 121 events. 36/121 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 460 event pairs, 7 based on Foata normal form. 6/127 useless extension candidates. Maximal degree in co-relation 266. Up to 37 conditions per place. [2024-11-09 15:02:59,502 INFO L140 encePairwiseOnDemand]: 17/26 looper letters, 21 selfloop transitions, 11 changer transitions 7/45 dead transitions. [2024-11-09 15:02:59,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 45 transitions, 228 flow [2024-11-09 15:02:59,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 15:02:59,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 15:02:59,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 93 transitions. [2024-11-09 15:02:59,505 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3974358974358974 [2024-11-09 15:02:59,505 INFO L175 Difference]: Start difference. First operand has 33 places, 24 transitions, 84 flow. Second operand 9 states and 93 transitions. [2024-11-09 15:02:59,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 45 transitions, 228 flow [2024-11-09 15:02:59,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 45 transitions, 226 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:02:59,509 INFO L231 Difference]: Finished difference. Result has 45 places, 29 transitions, 150 flow [2024-11-09 15:02:59,510 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=150, PETRI_PLACES=45, PETRI_TRANSITIONS=29} [2024-11-09 15:02:59,510 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 20 predicate places. [2024-11-09 15:02:59,511 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 29 transitions, 150 flow [2024-11-09 15:02:59,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 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) [2024-11-09 15:02:59,511 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:02:59,512 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:02:59,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 15:02:59,512 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 15:02:59,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:02:59,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1686980492, now seen corresponding path program 1 times [2024-11-09 15:02:59,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:02:59,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780589305] [2024-11-09 15:02:59,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:59,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:02:59,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:59,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:59,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:02:59,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780589305] [2024-11-09 15:02:59,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780589305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:02:59,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:02:59,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 15:02:59,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706093755] [2024-11-09 15:02:59,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:02:59,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 15:02:59,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:02:59,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 15:02:59,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 15:02:59,706 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 26 [2024-11-09 15:02:59,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 29 transitions, 150 flow. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 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) [2024-11-09 15:02:59,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:02:59,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 26 [2024-11-09 15:02:59,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:02:59,848 INFO L124 PetriNetUnfolderBase]: 24/92 cut-off events. [2024-11-09 15:02:59,849 INFO L125 PetriNetUnfolderBase]: For 127/129 co-relation queries the response was YES. [2024-11-09 15:02:59,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 92 events. 24/92 cut-off events. For 127/129 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 330 event pairs, 4 based on Foata normal form. 8/100 useless extension candidates. Maximal degree in co-relation 241. Up to 40 conditions per place. [2024-11-09 15:02:59,850 INFO L140 encePairwiseOnDemand]: 17/26 looper letters, 21 selfloop transitions, 10 changer transitions 1/38 dead transitions. [2024-11-09 15:02:59,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 38 transitions, 238 flow [2024-11-09 15:02:59,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 15:02:59,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 15:02:59,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 81 transitions. [2024-11-09 15:02:59,852 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3894230769230769 [2024-11-09 15:02:59,852 INFO L175 Difference]: Start difference. First operand has 45 places, 29 transitions, 150 flow. Second operand 8 states and 81 transitions. [2024-11-09 15:02:59,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 38 transitions, 238 flow [2024-11-09 15:02:59,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 38 transitions, 230 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:02:59,859 INFO L231 Difference]: Finished difference. Result has 48 places, 27 transitions, 148 flow [2024-11-09 15:02:59,859 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=148, PETRI_PLACES=48, PETRI_TRANSITIONS=27} [2024-11-09 15:02:59,859 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 23 predicate places. [2024-11-09 15:02:59,860 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 27 transitions, 148 flow [2024-11-09 15:02:59,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 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) [2024-11-09 15:02:59,860 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:02:59,860 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:02:59,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 15:02:59,860 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 15:02:59,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:02:59,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1706158788, now seen corresponding path program 1 times [2024-11-09 15:02:59,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:02:59,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118243529] [2024-11-09 15:02:59,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:02:59,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:02:59,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:02:59,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:02:59,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:02:59,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118243529] [2024-11-09 15:02:59,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118243529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:02:59,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:02:59,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:02:59,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671821574] [2024-11-09 15:02:59,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:02:59,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 15:02:59,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:02:59,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 15:02:59,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 15:02:59,974 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 26 [2024-11-09 15:02:59,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 27 transitions, 148 flow. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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) [2024-11-09 15:02:59,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:02:59,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 26 [2024-11-09 15:02:59,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:00,065 INFO L124 PetriNetUnfolderBase]: 26/92 cut-off events. [2024-11-09 15:03:00,066 INFO L125 PetriNetUnfolderBase]: For 178/180 co-relation queries the response was YES. [2024-11-09 15:03:00,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 92 events. 26/92 cut-off events. For 178/180 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 294 event pairs, 11 based on Foata normal form. 9/101 useless extension candidates. Maximal degree in co-relation 255. Up to 39 conditions per place. [2024-11-09 15:03:00,067 INFO L140 encePairwiseOnDemand]: 19/26 looper letters, 20 selfloop transitions, 7 changer transitions 2/34 dead transitions. [2024-11-09 15:03:00,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 34 transitions, 230 flow [2024-11-09 15:03:00,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:03:00,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:03:00,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 66 transitions. [2024-11-09 15:03:00,069 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4230769230769231 [2024-11-09 15:03:00,069 INFO L175 Difference]: Start difference. First operand has 48 places, 27 transitions, 148 flow. Second operand 6 states and 66 transitions. [2024-11-09 15:03:00,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 34 transitions, 230 flow [2024-11-09 15:03:00,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 34 transitions, 199 flow, removed 2 selfloop flow, removed 8 redundant places. [2024-11-09 15:03:00,072 INFO L231 Difference]: Finished difference. Result has 45 places, 25 transitions, 123 flow [2024-11-09 15:03:00,072 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=123, PETRI_PLACES=45, PETRI_TRANSITIONS=25} [2024-11-09 15:03:00,073 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 20 predicate places. [2024-11-09 15:03:00,073 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 25 transitions, 123 flow [2024-11-09 15:03:00,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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) [2024-11-09 15:03:00,074 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:00,074 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:00,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 15:03:00,074 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 15:03:00,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:00,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1059734223, now seen corresponding path program 1 times [2024-11-09 15:03:00,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:00,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512371234] [2024-11-09 15:03:00,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:00,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:00,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:00,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:00,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512371234] [2024-11-09 15:03:00,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512371234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:00,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:00,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:03:00,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751194498] [2024-11-09 15:03:00,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:00,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:03:00,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:00,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:03:00,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:03:00,149 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 26 [2024-11-09 15:03:00,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 25 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2024-11-09 15:03:00,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:00,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 26 [2024-11-09 15:03:00,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:00,187 INFO L124 PetriNetUnfolderBase]: 12/57 cut-off events. [2024-11-09 15:03:00,187 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2024-11-09 15:03:00,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 57 events. 12/57 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 139 event pairs, 3 based on Foata normal form. 6/63 useless extension candidates. Maximal degree in co-relation 146. Up to 26 conditions per place. [2024-11-09 15:03:00,190 INFO L140 encePairwiseOnDemand]: 22/26 looper letters, 18 selfloop transitions, 4 changer transitions 0/29 dead transitions. [2024-11-09 15:03:00,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 29 transitions, 181 flow [2024-11-09 15:03:00,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:03:00,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:03:00,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2024-11-09 15:03:00,192 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5512820512820513 [2024-11-09 15:03:00,192 INFO L175 Difference]: Start difference. First operand has 45 places, 25 transitions, 123 flow. Second operand 3 states and 43 transitions. [2024-11-09 15:03:00,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 29 transitions, 181 flow [2024-11-09 15:03:00,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 29 transitions, 163 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-09 15:03:00,194 INFO L231 Difference]: Finished difference. Result has 42 places, 25 transitions, 113 flow [2024-11-09 15:03:00,195 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=113, PETRI_PLACES=42, PETRI_TRANSITIONS=25} [2024-11-09 15:03:00,195 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 17 predicate places. [2024-11-09 15:03:00,195 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 25 transitions, 113 flow [2024-11-09 15:03:00,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2024-11-09 15:03:00,196 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:00,196 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:00,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 15:03:00,196 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 15:03:00,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:00,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1875612491, now seen corresponding path program 1 times [2024-11-09 15:03:00,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:00,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036683680] [2024-11-09 15:03:00,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:00,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:00,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:00,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:00,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036683680] [2024-11-09 15:03:00,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036683680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:00,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:00,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 15:03:00,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956302780] [2024-11-09 15:03:00,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:00,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 15:03:00,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:00,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 15:03:00,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 15:03:00,391 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 26 [2024-11-09 15:03:00,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 25 transitions, 113 flow. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 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) [2024-11-09 15:03:00,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:00,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 26 [2024-11-09 15:03:00,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:00,530 INFO L124 PetriNetUnfolderBase]: 14/56 cut-off events. [2024-11-09 15:03:00,531 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-11-09 15:03:00,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 56 events. 14/56 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 119 event pairs, 1 based on Foata normal form. 3/59 useless extension candidates. Maximal degree in co-relation 151. Up to 25 conditions per place. [2024-11-09 15:03:00,532 INFO L140 encePairwiseOnDemand]: 17/26 looper letters, 15 selfloop transitions, 13 changer transitions 0/30 dead transitions. [2024-11-09 15:03:00,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 30 transitions, 186 flow [2024-11-09 15:03:00,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 15:03:00,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 15:03:00,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 51 transitions. [2024-11-09 15:03:00,534 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.24519230769230768 [2024-11-09 15:03:00,534 INFO L175 Difference]: Start difference. First operand has 42 places, 25 transitions, 113 flow. Second operand 8 states and 51 transitions. [2024-11-09 15:03:00,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 30 transitions, 186 flow [2024-11-09 15:03:00,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 30 transitions, 172 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:03:00,536 INFO L231 Difference]: Finished difference. Result has 42 places, 25 transitions, 130 flow [2024-11-09 15:03:00,538 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=130, PETRI_PLACES=42, PETRI_TRANSITIONS=25} [2024-11-09 15:03:00,540 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 17 predicate places. [2024-11-09 15:03:00,541 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 25 transitions, 130 flow [2024-11-09 15:03:00,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 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) [2024-11-09 15:03:00,541 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:00,541 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:00,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 15:03:00,542 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 15:03:00,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:00,542 INFO L85 PathProgramCache]: Analyzing trace with hash 599472258, now seen corresponding path program 1 times [2024-11-09 15:03:00,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:00,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568912260] [2024-11-09 15:03:00,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:00,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:00,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:00,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:00,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568912260] [2024-11-09 15:03:00,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568912260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:00,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:00,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 15:03:00,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102972008] [2024-11-09 15:03:00,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:00,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 15:03:00,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:00,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 15:03:00,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 15:03:00,830 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 26 [2024-11-09 15:03:00,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 25 transitions, 130 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 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) [2024-11-09 15:03:00,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:00,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 26 [2024-11-09 15:03:00,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:00,989 INFO L124 PetriNetUnfolderBase]: 12/61 cut-off events. [2024-11-09 15:03:00,989 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-11-09 15:03:00,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 61 events. 12/61 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 164 event pairs, 3 based on Foata normal form. 1/62 useless extension candidates. Maximal degree in co-relation 164. Up to 28 conditions per place. [2024-11-09 15:03:00,990 INFO L140 encePairwiseOnDemand]: 17/26 looper letters, 17 selfloop transitions, 9 changer transitions 6/35 dead transitions. [2024-11-09 15:03:00,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 35 transitions, 230 flow [2024-11-09 15:03:00,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 15:03:00,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 15:03:00,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 72 transitions. [2024-11-09 15:03:00,992 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.27692307692307694 [2024-11-09 15:03:00,993 INFO L175 Difference]: Start difference. First operand has 42 places, 25 transitions, 130 flow. Second operand 10 states and 72 transitions. [2024-11-09 15:03:00,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 35 transitions, 230 flow [2024-11-09 15:03:00,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 35 transitions, 219 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 15:03:00,997 INFO L231 Difference]: Finished difference. Result has 49 places, 24 transitions, 135 flow [2024-11-09 15:03:00,997 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=135, PETRI_PLACES=49, PETRI_TRANSITIONS=24} [2024-11-09 15:03:00,998 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 24 predicate places. [2024-11-09 15:03:00,998 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 24 transitions, 135 flow [2024-11-09 15:03:00,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 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) [2024-11-09 15:03:00,998 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:00,999 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:00,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 15:03:00,999 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 15:03:00,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:00,999 INFO L85 PathProgramCache]: Analyzing trace with hash -365426080, now seen corresponding path program 1 times [2024-11-09 15:03:00,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:01,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634759280] [2024-11-09 15:03:01,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:01,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:01,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:01,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:01,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634759280] [2024-11-09 15:03:01,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634759280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:01,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:01,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 15:03:01,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283737812] [2024-11-09 15:03:01,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:01,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 15:03:01,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:01,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 15:03:01,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-09 15:03:01,293 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 26 [2024-11-09 15:03:01,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 24 transitions, 135 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 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) [2024-11-09 15:03:01,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:01,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 26 [2024-11-09 15:03:01,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:01,460 INFO L124 PetriNetUnfolderBase]: 11/50 cut-off events. [2024-11-09 15:03:01,460 INFO L125 PetriNetUnfolderBase]: For 85/87 co-relation queries the response was YES. [2024-11-09 15:03:01,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 50 events. 11/50 cut-off events. For 85/87 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 103 event pairs, 1 based on Foata normal form. 4/54 useless extension candidates. Maximal degree in co-relation 152. Up to 12 conditions per place. [2024-11-09 15:03:01,460 INFO L140 encePairwiseOnDemand]: 17/26 looper letters, 7 selfloop transitions, 7 changer transitions 13/30 dead transitions. [2024-11-09 15:03:01,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 30 transitions, 202 flow [2024-11-09 15:03:01,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 15:03:01,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-09 15:03:01,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 72 transitions. [2024-11-09 15:03:01,462 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2517482517482518 [2024-11-09 15:03:01,462 INFO L175 Difference]: Start difference. First operand has 49 places, 24 transitions, 135 flow. Second operand 11 states and 72 transitions. [2024-11-09 15:03:01,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 30 transitions, 202 flow [2024-11-09 15:03:01,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 30 transitions, 178 flow, removed 2 selfloop flow, removed 9 redundant places. [2024-11-09 15:03:01,463 INFO L231 Difference]: Finished difference. Result has 45 places, 17 transitions, 90 flow [2024-11-09 15:03:01,464 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=90, PETRI_PLACES=45, PETRI_TRANSITIONS=17} [2024-11-09 15:03:01,464 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 20 predicate places. [2024-11-09 15:03:01,464 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 17 transitions, 90 flow [2024-11-09 15:03:01,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 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) [2024-11-09 15:03:01,465 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:01,465 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:01,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 15:03:01,465 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 15:03:01,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:01,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1243769580, now seen corresponding path program 2 times [2024-11-09 15:03:01,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:01,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237343198] [2024-11-09 15:03:01,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:01,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:01,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:01,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:01,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237343198] [2024-11-09 15:03:01,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237343198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:01,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:01,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 15:03:01,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784196852] [2024-11-09 15:03:01,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:01,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 15:03:01,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:01,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 15:03:01,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-09 15:03:01,729 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 26 [2024-11-09 15:03:01,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 17 transitions, 90 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 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) [2024-11-09 15:03:01,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:01,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 26 [2024-11-09 15:03:01,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:01,824 INFO L124 PetriNetUnfolderBase]: 1/24 cut-off events. [2024-11-09 15:03:01,824 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-11-09 15:03:01,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 24 events. 1/24 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 26 event pairs, 1 based on Foata normal form. 1/25 useless extension candidates. Maximal degree in co-relation 63. Up to 9 conditions per place. [2024-11-09 15:03:01,824 INFO L140 encePairwiseOnDemand]: 18/26 looper letters, 7 selfloop transitions, 5 changer transitions 5/20 dead transitions. [2024-11-09 15:03:01,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 20 transitions, 135 flow [2024-11-09 15:03:01,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 15:03:01,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 15:03:01,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 54 transitions. [2024-11-09 15:03:01,825 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.23076923076923078 [2024-11-09 15:03:01,826 INFO L175 Difference]: Start difference. First operand has 45 places, 17 transitions, 90 flow. Second operand 9 states and 54 transitions. [2024-11-09 15:03:01,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 20 transitions, 135 flow [2024-11-09 15:03:01,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 20 transitions, 93 flow, removed 2 selfloop flow, removed 14 redundant places. [2024-11-09 15:03:01,827 INFO L231 Difference]: Finished difference. Result has 33 places, 15 transitions, 58 flow [2024-11-09 15:03:01,827 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=58, PETRI_PLACES=33, PETRI_TRANSITIONS=15} [2024-11-09 15:03:01,827 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 8 predicate places. [2024-11-09 15:03:01,827 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 15 transitions, 58 flow [2024-11-09 15:03:01,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 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) [2024-11-09 15:03:01,827 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:03:01,828 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:01,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 15:03:01,828 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 15:03:01,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:03:01,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1889345194, now seen corresponding path program 3 times [2024-11-09 15:03:01,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:03:01,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204309920] [2024-11-09 15:03:01,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:03:01,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:03:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:03:02,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:03:02,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:03:02,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204309920] [2024-11-09 15:03:02,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204309920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:03:02,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:03:02,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 15:03:02,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858373498] [2024-11-09 15:03:02,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:03:02,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 15:03:02,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:03:02,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 15:03:02,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 15:03:02,043 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 26 [2024-11-09 15:03:02,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 15 transitions, 58 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 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) [2024-11-09 15:03:02,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:03:02,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 26 [2024-11-09 15:03:02,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:03:02,116 INFO L124 PetriNetUnfolderBase]: 1/16 cut-off events. [2024-11-09 15:03:02,116 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-09 15:03:02,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 16 events. 1/16 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 6 event pairs, 0 based on Foata normal form. 1/17 useless extension candidates. Maximal degree in co-relation 44. Up to 4 conditions per place. [2024-11-09 15:03:02,116 INFO L140 encePairwiseOnDemand]: 18/26 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2024-11-09 15:03:02,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 15 transitions, 80 flow [2024-11-09 15:03:02,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 15:03:02,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 15:03:02,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 49 transitions. [2024-11-09 15:03:02,117 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2094017094017094 [2024-11-09 15:03:02,117 INFO L175 Difference]: Start difference. First operand has 33 places, 15 transitions, 58 flow. Second operand 9 states and 49 transitions. [2024-11-09 15:03:02,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 15 transitions, 80 flow [2024-11-09 15:03:02,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 15 transitions, 66 flow, removed 1 selfloop flow, removed 7 redundant places. [2024-11-09 15:03:02,117 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2024-11-09 15:03:02,118 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2024-11-09 15:03:02,118 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 3 predicate places. [2024-11-09 15:03:02,118 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 0 transitions, 0 flow [2024-11-09 15:03:02,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 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) [2024-11-09 15:03:02,121 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2024-11-09 15:03:02,121 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2024-11-09 15:03:02,121 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-09 15:03:02,121 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2024-11-09 15:03:02,121 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2024-11-09 15:03:02,122 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2024-11-09 15:03:02,122 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2024-11-09 15:03:02,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 15:03:02,122 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:03:02,126 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 15:03:02,126 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 15:03:02,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:03:02 BasicIcfg [2024-11-09 15:03:02,131 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 15:03:02,131 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 15:03:02,131 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 15:03:02,131 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 15:03:02,132 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:02:58" (3/4) ... [2024-11-09 15:03:02,134 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 15:03:02,137 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-09 15:03:02,144 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 87 nodes and edges [2024-11-09 15:03:02,144 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-09 15:03:02,144 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 15:03:02,144 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 15:03:02,243 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 15:03:02,244 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 15:03:02,244 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 15:03:02,245 INFO L158 Benchmark]: Toolchain (without parser) took 5837.43ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 79.2MB in the beginning and 61.3MB in the end (delta: 17.8MB). Peak memory consumption was 91.9MB. Max. memory is 16.1GB. [2024-11-09 15:03:02,245 INFO L158 Benchmark]: CDTParser took 0.91ms. Allocated memory is still 159.4MB. Free memory is still 127.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:03:02,246 INFO L158 Benchmark]: CACSL2BoogieTranslator took 632.21ms. Allocated memory is still 159.4MB. Free memory was 79.0MB in the beginning and 108.7MB in the end (delta: -29.8MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2024-11-09 15:03:02,246 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.62ms. Allocated memory is still 159.4MB. Free memory was 108.7MB in the beginning and 106.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:03:02,247 INFO L158 Benchmark]: Boogie Preprocessor took 53.21ms. Allocated memory is still 159.4MB. Free memory was 106.7MB in the beginning and 104.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:03:02,247 INFO L158 Benchmark]: RCFGBuilder took 856.11ms. Allocated memory is still 159.4MB. Free memory was 104.3MB in the beginning and 61.8MB in the end (delta: 42.5MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-11-09 15:03:02,247 INFO L158 Benchmark]: TraceAbstraction took 4123.88ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 60.9MB in the beginning and 66.6MB in the end (delta: -5.7MB). Peak memory consumption was 70.7MB. Max. memory is 16.1GB. [2024-11-09 15:03:02,247 INFO L158 Benchmark]: Witness Printer took 112.94ms. Allocated memory is still 232.8MB. Free memory was 66.6MB in the beginning and 61.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 15:03:02,252 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.91ms. Allocated memory is still 159.4MB. Free memory is still 127.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 632.21ms. Allocated memory is still 159.4MB. Free memory was 79.0MB in the beginning and 108.7MB in the end (delta: -29.8MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.62ms. Allocated memory is still 159.4MB. Free memory was 108.7MB in the beginning and 106.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.21ms. Allocated memory is still 159.4MB. Free memory was 106.7MB in the beginning and 104.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 856.11ms. Allocated memory is still 159.4MB. Free memory was 104.3MB in the beginning and 61.8MB in the end (delta: 42.5MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4123.88ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 60.9MB in the beginning and 66.6MB in the end (delta: -5.7MB). Peak memory consumption was 70.7MB. Max. memory is 16.1GB. * Witness Printer took 112.94ms. Allocated memory is still 232.8MB. Free memory was 66.6MB in the beginning and 61.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 924]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 924]: 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: 4.0s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 343 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 290 mSDsluCounter, 430 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 412 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1060 IncrementalHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 18 mSDtfsCounter, 1060 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=150occurred in iteration=2, InterpolantAutomatonStates: 79, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 753 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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! [2024-11-09 15:03:02,283 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