./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 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-23 01:49:50,249 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 01:49:50,309 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-23 01:49:50,313 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 01:49:50,314 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 01:49:50,342 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 01:49:50,342 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 01:49:50,343 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 01:49:50,344 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 01:49:50,344 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 01:49:50,345 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 01:49:50,345 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 01:49:50,346 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 01:49:50,346 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 01:49:50,347 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 01:49:50,347 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 01:49:50,347 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 01:49:50,347 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 01:49:50,348 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 01:49:50,348 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 01:49:50,348 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 01:49:50,352 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 01:49:50,352 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 01:49:50,352 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 01:49:50,353 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-23 01:49:50,353 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 01:49:50,353 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 01:49:50,356 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 01:49:50,356 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 01:49:50,356 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 01:49:50,357 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 01:49:50,357 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 01:49:50,357 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 01:49:50,357 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 01:49:50,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 01:49:50,358 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 01:49:50,358 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 01:49:50,358 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 01:49:50,359 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 01:49:50,359 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 01:49:50,359 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 01:49:50,360 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 01:49:50,361 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 01:49:50,361 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 01:49:50,362 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c [2024-11-23 01:49:50,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 01:49:50,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 01:49:50,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 01:49:50,698 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 01:49:50,700 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 01:49:50,702 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2024-11-23 01:49:52,152 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-23 01:49:52,476 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 01:49:52,477 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2024-11-23 01:49:52,500 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e0dd3ad0/1dcdca0e95f346c489471330e66e31d2/FLAGe11514f3e [2024-11-23 01:49:52,764 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e0dd3ad0/1dcdca0e95f346c489471330e66e31d2 [2024-11-23 01:49:52,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 01:49:52,769 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 01:49:52,771 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 01:49:52,772 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 01:49:52,778 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 01:49:52,778 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:49:52" (1/1) ... [2024-11-23 01:49:52,779 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ff32f0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:52, skipping insertion in model container [2024-11-23 01:49:52,779 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:49:52" (1/1) ... [2024-11-23 01:49:52,828 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 01:49:53,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 01:49:53,340 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 01:49:53,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 01:49:53,438 INFO L204 MainTranslator]: Completed translation [2024-11-23 01:49:53,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:53 WrapperNode [2024-11-23 01:49:53,439 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 01:49:53,443 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 01:49:53,443 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 01:49:53,443 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 01:49:53,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:53" (1/1) ... [2024-11-23 01:49:53,467 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:53" (1/1) ... [2024-11-23 01:49:53,497 INFO L138 Inliner]: procedures = 264, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 106 [2024-11-23 01:49:53,498 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 01:49:53,499 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 01:49:53,499 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 01:49:53,499 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 01:49:53,509 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:53" (1/1) ... [2024-11-23 01:49:53,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:53" (1/1) ... [2024-11-23 01:49:53,513 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:53" (1/1) ... [2024-11-23 01:49:53,528 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]. [2024-11-23 01:49:53,528 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:53" (1/1) ... [2024-11-23 01:49:53,528 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:53" (1/1) ... [2024-11-23 01:49:53,535 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:53" (1/1) ... [2024-11-23 01:49:53,537 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:53" (1/1) ... [2024-11-23 01:49:53,539 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:53" (1/1) ... [2024-11-23 01:49:53,541 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:53" (1/1) ... [2024-11-23 01:49:53,543 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 01:49:53,545 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 01:49:53,545 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 01:49:53,545 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 01:49:53,547 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:53" (1/1) ... [2024-11-23 01:49:53,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 01:49:53,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:49:53,580 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) [2024-11-23 01:49:53,583 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 [2024-11-23 01:49:53,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 01:49:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 01:49:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-23 01:49:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 01:49:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 01:49:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 01:49:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 01:49:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-23 01:49:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 01:49:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-23 01:49:53,631 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-23 01:49:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 01:49:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 01:49:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 01:49:53,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 01:49:53,633 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 01:49:53,756 INFO L238 CfgBuilder]: Building ICFG [2024-11-23 01:49:53,757 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 01:49:53,953 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 01:49:53,953 INFO L287 CfgBuilder]: Performing block encoding [2024-11-23 01:49:54,295 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 01:49:54,295 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 01:49:54,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:49:54 BoogieIcfgContainer [2024-11-23 01:49:54,296 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 01:49:54,298 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 01:49:54,299 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 01:49:54,302 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 01:49:54,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:49:52" (1/3) ... [2024-11-23 01:49:54,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e6168e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:49:54, skipping insertion in model container [2024-11-23 01:49:54,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:53" (2/3) ... [2024-11-23 01:49:54,304 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e6168e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:49:54, skipping insertion in model container [2024-11-23 01:49:54,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:49:54" (3/3) ... [2024-11-23 01:49:54,306 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_46-escape_nr.i [2024-11-23 01:49:54,325 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 01:49:54,325 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-23 01:49:54,325 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 01:49:54,366 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-23 01:49:54,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 26 transitions, 59 flow [2024-11-23 01:49:54,438 INFO L124 PetriNetUnfolderBase]: 1/25 cut-off events. [2024-11-23 01:49:54,439 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-23 01:49:54,441 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. [2024-11-23 01:49:54,441 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 26 transitions, 59 flow [2024-11-23 01:49:54,444 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 21 transitions, 45 flow [2024-11-23 01:49:54,456 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 01:49:54,464 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;@3870dd4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 01:49:54,465 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-23 01:49:54,472 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 01:49:54,472 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-11-23 01:49:54,472 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 01:49:54,472 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:49:54,473 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:49:54,473 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)] === [2024-11-23 01:49:54,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:49:54,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1717605375, now seen corresponding path program 1 times [2024-11-23 01:49:54,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:49:54,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893499321] [2024-11-23 01:49:54,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:49:54,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:49:54,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:49:54,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:49:54,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:49:54,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893499321] [2024-11-23 01:49:54,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893499321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:49:54,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:49:54,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:49:54,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455756901] [2024-11-23 01:49:54,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:49:55,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 01:49:55,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:49:55,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 01:49:55,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 01:49:55,051 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 26 [2024-11-23 01:49:55,053 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) [2024-11-23 01:49:55,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:49:55,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 26 [2024-11-23 01:49:55,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:49:55,234 INFO L124 PetriNetUnfolderBase]: 44/130 cut-off events. [2024-11-23 01:49:55,234 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 01:49:55,235 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. [2024-11-23 01:49:55,237 INFO L140 encePairwiseOnDemand]: 19/26 looper letters, 20 selfloop transitions, 7 changer transitions 5/37 dead transitions. [2024-11-23 01:49:55,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 37 transitions, 141 flow [2024-11-23 01:49:55,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 01:49:55,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 01:49:55,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 70 transitions. [2024-11-23 01:49:55,249 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44871794871794873 [2024-11-23 01:49:55,252 INFO L175 Difference]: Start difference. First operand has 25 places, 21 transitions, 45 flow. Second operand 6 states and 70 transitions. [2024-11-23 01:49:55,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 37 transitions, 141 flow [2024-11-23 01:49:55,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 37 transitions, 140 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 01:49:55,258 INFO L231 Difference]: Finished difference. Result has 33 places, 24 transitions, 84 flow [2024-11-23 01:49:55,260 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} [2024-11-23 01:49:55,264 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 8 predicate places. [2024-11-23 01:49:55,265 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 24 transitions, 84 flow [2024-11-23 01:49:55,265 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) [2024-11-23 01:49:55,265 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:49:55,265 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:49:55,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 01:49:55,266 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)] === [2024-11-23 01:49:55,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:49:55,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1716986721, now seen corresponding path program 1 times [2024-11-23 01:49:55,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:49:55,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497303402] [2024-11-23 01:49:55,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:49:55,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:49:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:49:55,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:49:55,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:49:55,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497303402] [2024-11-23 01:49:55,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497303402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:49:55,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:49:55,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 01:49:55,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864097038] [2024-11-23 01:49:55,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:49:55,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 01:49:55,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:49:55,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 01:49:55,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 01:49:55,485 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 26 [2024-11-23 01:49:55,486 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) [2024-11-23 01:49:55,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:49:55,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 26 [2024-11-23 01:49:55,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:49:55,685 INFO L124 PetriNetUnfolderBase]: 36/121 cut-off events. [2024-11-23 01:49:55,685 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-11-23 01:49:55,686 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. [2024-11-23 01:49:55,687 INFO L140 encePairwiseOnDemand]: 17/26 looper letters, 21 selfloop transitions, 11 changer transitions 7/45 dead transitions. [2024-11-23 01:49:55,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 45 transitions, 228 flow [2024-11-23 01:49:55,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 01:49:55,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-23 01:49:55,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 93 transitions. [2024-11-23 01:49:55,690 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3974358974358974 [2024-11-23 01:49:55,690 INFO L175 Difference]: Start difference. First operand has 33 places, 24 transitions, 84 flow. Second operand 9 states and 93 transitions. [2024-11-23 01:49:55,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 45 transitions, 228 flow [2024-11-23 01:49:55,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 45 transitions, 226 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 01:49:55,695 INFO L231 Difference]: Finished difference. Result has 45 places, 29 transitions, 150 flow [2024-11-23 01:49:55,695 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} [2024-11-23 01:49:55,695 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 20 predicate places. [2024-11-23 01:49:55,696 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 29 transitions, 150 flow [2024-11-23 01:49:55,696 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) [2024-11-23 01:49:55,696 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:49:55,698 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:49:55,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 01:49:55,699 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)] === [2024-11-23 01:49:55,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:49:55,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1686980492, now seen corresponding path program 1 times [2024-11-23 01:49:55,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:49:55,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349442538] [2024-11-23 01:49:55,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:49:55,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:49:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:49:55,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:49:55,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:49:55,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349442538] [2024-11-23 01:49:55,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349442538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:49:55,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:49:55,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 01:49:55,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837935539] [2024-11-23 01:49:55,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:49:55,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 01:49:55,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:49:55,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 01:49:55,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 01:49:55,893 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 26 [2024-11-23 01:49:55,893 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) [2024-11-23 01:49:55,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:49:55,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 26 [2024-11-23 01:49:55,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:49:56,017 INFO L124 PetriNetUnfolderBase]: 24/92 cut-off events. [2024-11-23 01:49:56,018 INFO L125 PetriNetUnfolderBase]: For 127/129 co-relation queries the response was YES. [2024-11-23 01:49:56,018 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. [2024-11-23 01:49:56,019 INFO L140 encePairwiseOnDemand]: 17/26 looper letters, 21 selfloop transitions, 10 changer transitions 1/38 dead transitions. [2024-11-23 01:49:56,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 38 transitions, 238 flow [2024-11-23 01:49:56,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 01:49:56,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-23 01:49:56,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 81 transitions. [2024-11-23 01:49:56,021 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3894230769230769 [2024-11-23 01:49:56,021 INFO L175 Difference]: Start difference. First operand has 45 places, 29 transitions, 150 flow. Second operand 8 states and 81 transitions. [2024-11-23 01:49:56,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 38 transitions, 238 flow [2024-11-23 01:49:56,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 38 transitions, 230 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-23 01:49:56,025 INFO L231 Difference]: Finished difference. Result has 48 places, 27 transitions, 148 flow [2024-11-23 01:49:56,025 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} [2024-11-23 01:49:56,026 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 23 predicate places. [2024-11-23 01:49:56,026 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 27 transitions, 148 flow [2024-11-23 01:49:56,026 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) [2024-11-23 01:49:56,026 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:49:56,026 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:49:56,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 01:49:56,027 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)] === [2024-11-23 01:49:56,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:49:56,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1706158788, now seen corresponding path program 1 times [2024-11-23 01:49:56,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:49:56,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489547928] [2024-11-23 01:49:56,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:49:56,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:49:56,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:49:56,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:49:56,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:49:56,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489547928] [2024-11-23 01:49:56,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489547928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:49:56,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:49:56,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:49:56,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051840633] [2024-11-23 01:49:56,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:49:56,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 01:49:56,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:49:56,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 01:49:56,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 01:49:56,143 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 26 [2024-11-23 01:49:56,144 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) [2024-11-23 01:49:56,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:49:56,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 26 [2024-11-23 01:49:56,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:49:56,235 INFO L124 PetriNetUnfolderBase]: 26/92 cut-off events. [2024-11-23 01:49:56,236 INFO L125 PetriNetUnfolderBase]: For 178/180 co-relation queries the response was YES. [2024-11-23 01:49:56,237 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. [2024-11-23 01:49:56,238 INFO L140 encePairwiseOnDemand]: 19/26 looper letters, 20 selfloop transitions, 7 changer transitions 2/34 dead transitions. [2024-11-23 01:49:56,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 34 transitions, 230 flow [2024-11-23 01:49:56,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 01:49:56,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 01:49:56,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 66 transitions. [2024-11-23 01:49:56,240 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4230769230769231 [2024-11-23 01:49:56,240 INFO L175 Difference]: Start difference. First operand has 48 places, 27 transitions, 148 flow. Second operand 6 states and 66 transitions. [2024-11-23 01:49:56,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 34 transitions, 230 flow [2024-11-23 01:49:56,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 34 transitions, 199 flow, removed 2 selfloop flow, removed 8 redundant places. [2024-11-23 01:49:56,243 INFO L231 Difference]: Finished difference. Result has 45 places, 25 transitions, 123 flow [2024-11-23 01:49:56,245 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} [2024-11-23 01:49:56,246 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 20 predicate places. [2024-11-23 01:49:56,247 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 25 transitions, 123 flow [2024-11-23 01:49:56,248 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) [2024-11-23 01:49:56,248 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:49:56,248 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:49:56,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 01:49:56,248 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)] === [2024-11-23 01:49:56,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:49:56,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1059734223, now seen corresponding path program 1 times [2024-11-23 01:49:56,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:49:56,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170210739] [2024-11-23 01:49:56,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:49:56,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:49:56,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:49:56,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:49:56,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:49:56,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170210739] [2024-11-23 01:49:56,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170210739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:49:56,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:49:56,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:49:56,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098469355] [2024-11-23 01:49:56,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:49:56,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 01:49:56,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:49:56,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 01:49:56,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 01:49:56,339 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 26 [2024-11-23 01:49:56,340 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) [2024-11-23 01:49:56,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:49:56,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 26 [2024-11-23 01:49:56,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:49:56,387 INFO L124 PetriNetUnfolderBase]: 12/57 cut-off events. [2024-11-23 01:49:56,387 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2024-11-23 01:49:56,388 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. [2024-11-23 01:49:56,388 INFO L140 encePairwiseOnDemand]: 22/26 looper letters, 18 selfloop transitions, 4 changer transitions 0/29 dead transitions. [2024-11-23 01:49:56,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 29 transitions, 181 flow [2024-11-23 01:49:56,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 01:49:56,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 01:49:56,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2024-11-23 01:49:56,390 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5512820512820513 [2024-11-23 01:49:56,390 INFO L175 Difference]: Start difference. First operand has 45 places, 25 transitions, 123 flow. Second operand 3 states and 43 transitions. [2024-11-23 01:49:56,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 29 transitions, 181 flow [2024-11-23 01:49:56,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 29 transitions, 163 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-23 01:49:56,392 INFO L231 Difference]: Finished difference. Result has 42 places, 25 transitions, 113 flow [2024-11-23 01:49:56,392 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} [2024-11-23 01:49:56,393 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 17 predicate places. [2024-11-23 01:49:56,393 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 25 transitions, 113 flow [2024-11-23 01:49:56,393 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) [2024-11-23 01:49:56,393 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:49:56,394 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:49:56,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 01:49:56,394 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)] === [2024-11-23 01:49:56,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:49:56,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1875612491, now seen corresponding path program 1 times [2024-11-23 01:49:56,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:49:56,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034447451] [2024-11-23 01:49:56,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:49:56,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:49:56,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:49:56,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:49:56,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:49:56,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034447451] [2024-11-23 01:49:56,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034447451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:49:56,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:49:56,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 01:49:56,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228927374] [2024-11-23 01:49:56,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:49:56,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 01:49:56,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:49:56,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 01:49:56,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 01:49:56,636 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 26 [2024-11-23 01:49:56,637 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) [2024-11-23 01:49:56,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:49:56,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 26 [2024-11-23 01:49:56,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:49:56,770 INFO L124 PetriNetUnfolderBase]: 14/56 cut-off events. [2024-11-23 01:49:56,770 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-11-23 01:49:56,771 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. [2024-11-23 01:49:56,771 INFO L140 encePairwiseOnDemand]: 17/26 looper letters, 15 selfloop transitions, 13 changer transitions 0/30 dead transitions. [2024-11-23 01:49:56,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 30 transitions, 186 flow [2024-11-23 01:49:56,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 01:49:56,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-23 01:49:56,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 51 transitions. [2024-11-23 01:49:56,773 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.24519230769230768 [2024-11-23 01:49:56,773 INFO L175 Difference]: Start difference. First operand has 42 places, 25 transitions, 113 flow. Second operand 8 states and 51 transitions. [2024-11-23 01:49:56,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 30 transitions, 186 flow [2024-11-23 01:49:56,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 30 transitions, 172 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-23 01:49:56,775 INFO L231 Difference]: Finished difference. Result has 42 places, 25 transitions, 130 flow [2024-11-23 01:49:56,775 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} [2024-11-23 01:49:56,776 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 17 predicate places. [2024-11-23 01:49:56,776 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 25 transitions, 130 flow [2024-11-23 01:49:56,776 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) [2024-11-23 01:49:56,776 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:49:56,776 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:49:56,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 01:49:56,776 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)] === [2024-11-23 01:49:56,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:49:56,777 INFO L85 PathProgramCache]: Analyzing trace with hash 599472258, now seen corresponding path program 1 times [2024-11-23 01:49:56,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:49:56,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149671522] [2024-11-23 01:49:56,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:49:56,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:49:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:49:57,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:49:57,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:49:57,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149671522] [2024-11-23 01:49:57,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149671522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:49:57,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:49:57,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 01:49:57,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58880999] [2024-11-23 01:49:57,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:49:57,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 01:49:57,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:49:57,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 01:49:57,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-23 01:49:57,027 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 26 [2024-11-23 01:49:57,028 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) [2024-11-23 01:49:57,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:49:57,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 26 [2024-11-23 01:49:57,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:49:57,177 INFO L124 PetriNetUnfolderBase]: 12/61 cut-off events. [2024-11-23 01:49:57,177 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-11-23 01:49:57,178 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. [2024-11-23 01:49:57,178 INFO L140 encePairwiseOnDemand]: 17/26 looper letters, 17 selfloop transitions, 9 changer transitions 6/35 dead transitions. [2024-11-23 01:49:57,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 35 transitions, 230 flow [2024-11-23 01:49:57,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 01:49:57,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-23 01:49:57,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 72 transitions. [2024-11-23 01:49:57,180 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.27692307692307694 [2024-11-23 01:49:57,180 INFO L175 Difference]: Start difference. First operand has 42 places, 25 transitions, 130 flow. Second operand 10 states and 72 transitions. [2024-11-23 01:49:57,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 35 transitions, 230 flow [2024-11-23 01:49:57,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 35 transitions, 219 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-23 01:49:57,182 INFO L231 Difference]: Finished difference. Result has 49 places, 24 transitions, 135 flow [2024-11-23 01:49:57,182 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} [2024-11-23 01:49:57,183 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 24 predicate places. [2024-11-23 01:49:57,183 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 24 transitions, 135 flow [2024-11-23 01:49:57,183 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) [2024-11-23 01:49:57,183 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:49:57,183 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:49:57,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 01:49:57,183 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)] === [2024-11-23 01:49:57,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:49:57,184 INFO L85 PathProgramCache]: Analyzing trace with hash -365426080, now seen corresponding path program 1 times [2024-11-23 01:49:57,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:49:57,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898767857] [2024-11-23 01:49:57,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:49:57,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:49:57,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:49:57,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:49:57,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:49:57,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898767857] [2024-11-23 01:49:57,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898767857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:49:57,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:49:57,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 01:49:57,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231844071] [2024-11-23 01:49:57,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:49:57,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 01:49:57,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:49:57,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 01:49:57,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-23 01:49:57,479 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 26 [2024-11-23 01:49:57,480 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) [2024-11-23 01:49:57,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:49:57,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 26 [2024-11-23 01:49:57,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:49:57,636 INFO L124 PetriNetUnfolderBase]: 11/50 cut-off events. [2024-11-23 01:49:57,636 INFO L125 PetriNetUnfolderBase]: For 85/87 co-relation queries the response was YES. [2024-11-23 01:49:57,636 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. [2024-11-23 01:49:57,637 INFO L140 encePairwiseOnDemand]: 17/26 looper letters, 7 selfloop transitions, 7 changer transitions 13/30 dead transitions. [2024-11-23 01:49:57,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 30 transitions, 202 flow [2024-11-23 01:49:57,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 01:49:57,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-23 01:49:57,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 72 transitions. [2024-11-23 01:49:57,641 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2517482517482518 [2024-11-23 01:49:57,641 INFO L175 Difference]: Start difference. First operand has 49 places, 24 transitions, 135 flow. Second operand 11 states and 72 transitions. [2024-11-23 01:49:57,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 30 transitions, 202 flow [2024-11-23 01:49:57,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 30 transitions, 178 flow, removed 2 selfloop flow, removed 9 redundant places. [2024-11-23 01:49:57,645 INFO L231 Difference]: Finished difference. Result has 45 places, 17 transitions, 90 flow [2024-11-23 01:49:57,645 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} [2024-11-23 01:49:57,646 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 20 predicate places. [2024-11-23 01:49:57,646 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 17 transitions, 90 flow [2024-11-23 01:49:57,646 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) [2024-11-23 01:49:57,646 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:49:57,646 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:49:57,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 01:49:57,647 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)] === [2024-11-23 01:49:57,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:49:57,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1243769580, now seen corresponding path program 2 times [2024-11-23 01:49:57,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:49:57,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647089360] [2024-11-23 01:49:57,647 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 01:49:57,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:49:57,689 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 01:49:57,693 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:49:57,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:49:57,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:49:57,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647089360] [2024-11-23 01:49:57,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647089360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:49:57,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:49:57,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 01:49:57,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078606162] [2024-11-23 01:49:57,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:49:57,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 01:49:57,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:49:57,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 01:49:57,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-23 01:49:57,925 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 26 [2024-11-23 01:49:57,926 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) [2024-11-23 01:49:57,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:49:57,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 26 [2024-11-23 01:49:57,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:49:58,017 INFO L124 PetriNetUnfolderBase]: 1/24 cut-off events. [2024-11-23 01:49:58,017 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-11-23 01:49:58,017 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. [2024-11-23 01:49:58,018 INFO L140 encePairwiseOnDemand]: 18/26 looper letters, 7 selfloop transitions, 5 changer transitions 5/20 dead transitions. [2024-11-23 01:49:58,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 20 transitions, 135 flow [2024-11-23 01:49:58,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 01:49:58,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-23 01:49:58,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 54 transitions. [2024-11-23 01:49:58,019 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.23076923076923078 [2024-11-23 01:49:58,019 INFO L175 Difference]: Start difference. First operand has 45 places, 17 transitions, 90 flow. Second operand 9 states and 54 transitions. [2024-11-23 01:49:58,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 20 transitions, 135 flow [2024-11-23 01:49:58,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 20 transitions, 93 flow, removed 2 selfloop flow, removed 14 redundant places. [2024-11-23 01:49:58,021 INFO L231 Difference]: Finished difference. Result has 33 places, 15 transitions, 58 flow [2024-11-23 01:49:58,021 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} [2024-11-23 01:49:58,022 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 8 predicate places. [2024-11-23 01:49:58,022 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 15 transitions, 58 flow [2024-11-23 01:49:58,022 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) [2024-11-23 01:49:58,022 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:49:58,022 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:49:58,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 01:49:58,023 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)] === [2024-11-23 01:49:58,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:49:58,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1889345194, now seen corresponding path program 3 times [2024-11-23 01:49:58,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:49:58,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696344702] [2024-11-23 01:49:58,024 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-23 01:49:58,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:49:58,046 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-23 01:49:58,047 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:49:58,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:49:58,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:49:58,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696344702] [2024-11-23 01:49:58,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696344702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:49:58,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:49:58,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 01:49:58,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956229542] [2024-11-23 01:49:58,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:49:58,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 01:49:58,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:49:58,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 01:49:58,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-23 01:49:58,233 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 26 [2024-11-23 01:49:58,234 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) [2024-11-23 01:49:58,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:49:58,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 26 [2024-11-23 01:49:58,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:49:58,316 INFO L124 PetriNetUnfolderBase]: 1/16 cut-off events. [2024-11-23 01:49:58,317 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-23 01:49:58,317 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. [2024-11-23 01:49:58,317 INFO L140 encePairwiseOnDemand]: 18/26 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2024-11-23 01:49:58,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 15 transitions, 80 flow [2024-11-23 01:49:58,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 01:49:58,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-23 01:49:58,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 49 transitions. [2024-11-23 01:49:58,318 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2094017094017094 [2024-11-23 01:49:58,318 INFO L175 Difference]: Start difference. First operand has 33 places, 15 transitions, 58 flow. Second operand 9 states and 49 transitions. [2024-11-23 01:49:58,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 15 transitions, 80 flow [2024-11-23 01:49:58,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 15 transitions, 66 flow, removed 1 selfloop flow, removed 7 redundant places. [2024-11-23 01:49:58,319 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2024-11-23 01:49:58,320 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} [2024-11-23 01:49:58,322 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 3 predicate places. [2024-11-23 01:49:58,323 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 0 transitions, 0 flow [2024-11-23 01:49:58,323 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) [2024-11-23 01:49:58,326 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2024-11-23 01:49:58,326 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2024-11-23 01:49:58,328 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-23 01:49:58,328 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2024-11-23 01:49:58,329 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2024-11-23 01:49:58,329 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2024-11-23 01:49:58,329 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2024-11-23 01:49:58,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 01:49:58,329 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:49:58,335 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-23 01:49:58,335 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 01:49:58,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:49:58 BasicIcfg [2024-11-23 01:49:58,341 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 01:49:58,341 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 01:49:58,341 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 01:49:58,341 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 01:49:58,342 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:49:54" (3/4) ... [2024-11-23 01:49:58,343 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-23 01:49:58,346 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-23 01:49:58,351 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 87 nodes and edges [2024-11-23 01:49:58,353 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-23 01:49:58,353 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-23 01:49:58,353 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-23 01:49:58,446 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-23 01:49:58,446 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-23 01:49:58,447 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 01:49:58,447 INFO L158 Benchmark]: Toolchain (without parser) took 5678.56ms. Allocated memory was 167.8MB in the beginning and 213.9MB in the end (delta: 46.1MB). Free memory was 125.6MB in the beginning and 168.8MB in the end (delta: -43.2MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2024-11-23 01:49:58,448 INFO L158 Benchmark]: CDTParser took 1.43ms. Allocated memory is still 113.2MB. Free memory is still 85.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 01:49:58,448 INFO L158 Benchmark]: CACSL2BoogieTranslator took 670.77ms. Allocated memory is still 167.8MB. Free memory was 125.6MB in the beginning and 94.9MB in the end (delta: 30.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-23 01:49:58,448 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.56ms. Allocated memory is still 167.8MB. Free memory was 94.9MB in the beginning and 92.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-23 01:49:58,448 INFO L158 Benchmark]: Boogie Preprocessor took 44.91ms. Allocated memory is still 167.8MB. Free memory was 92.0MB in the beginning and 89.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 01:49:58,449 INFO L158 Benchmark]: RCFGBuilder took 751.27ms. Allocated memory is still 167.8MB. Free memory was 89.9MB in the beginning and 109.5MB in the end (delta: -19.6MB). Peak memory consumption was 52.6MB. Max. memory is 16.1GB. [2024-11-23 01:49:58,449 INFO L158 Benchmark]: TraceAbstraction took 4042.22ms. Allocated memory was 167.8MB in the beginning and 213.9MB in the end (delta: 46.1MB). Free memory was 109.5MB in the beginning and 174.0MB in the end (delta: -64.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 01:49:58,449 INFO L158 Benchmark]: Witness Printer took 105.52ms. Allocated memory is still 213.9MB. Free memory was 174.0MB in the beginning and 168.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-23 01:49:58,451 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.43ms. Allocated memory is still 113.2MB. Free memory is still 85.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 670.77ms. Allocated memory is still 167.8MB. Free memory was 125.6MB in the beginning and 94.9MB in the end (delta: 30.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.56ms. Allocated memory is still 167.8MB. Free memory was 94.9MB in the beginning and 92.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.91ms. Allocated memory is still 167.8MB. Free memory was 92.0MB in the beginning and 89.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 751.27ms. Allocated memory is still 167.8MB. Free memory was 89.9MB in the beginning and 109.5MB in the end (delta: -19.6MB). Peak memory consumption was 52.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4042.22ms. Allocated memory was 167.8MB in the beginning and 213.9MB in the end (delta: 46.1MB). Free memory was 109.5MB in the beginning and 174.0MB in the end (delta: -64.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 105.52ms. Allocated memory is still 213.9MB. Free memory was 174.0MB in the beginning and 168.8MB 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: 3.9s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, 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, 1.7s 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! [2024-11-23 01:49:58,466 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