./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a046e57d 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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.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 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 16:40:23,172 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 16:40:23,235 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-13 16:40:23,239 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 16:40:23,241 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 16:40:23,278 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 16:40:23,279 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 16:40:23,279 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 16:40:23,279 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 16:40:23,280 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 16:40:23,280 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 16:40:23,281 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 16:40:23,282 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 16:40:23,284 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 16:40:23,285 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 16:40:23,285 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 16:40:23,285 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 16:40:23,286 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 16:40:23,286 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 16:40:23,286 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 16:40:23,287 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 16:40:23,287 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 16:40:23,288 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 16:40:23,288 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 16:40:23,288 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 16:40:23,289 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 16:40:23,289 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 16:40:23,289 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 16:40:23,290 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 16:40:23,290 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 16:40:23,290 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 16:40:23,290 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 16:40:23,291 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 16:40:23,291 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 16:40:23,291 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 16:40:23,291 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 16:40:23,292 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 16:40:23,292 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 16:40:23,292 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 16:40:23,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 16:40:23,293 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 16:40:23,294 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 16:40:23,294 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 16:40:23,294 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 16:40:23,295 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e [2024-10-13 16:40:23,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 16:40:23,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 16:40:23,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 16:40:23,587 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 16:40:23,587 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 16:40:23,588 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2024-10-13 16:40:25,115 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 16:40:25,377 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 16:40:25,378 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2024-10-13 16:40:25,402 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/778733b3a/1a52da9e47fb4351b5c23309b99a1de5/FLAGb0b230b7a [2024-10-13 16:40:25,698 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/778733b3a/1a52da9e47fb4351b5c23309b99a1de5 [2024-10-13 16:40:25,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 16:40:25,702 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 16:40:25,703 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 16:40:25,704 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 16:40:25,708 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 16:40:25,708 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:40:25" (1/1) ... [2024-10-13 16:40:25,709 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17f01e20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:40:25, skipping insertion in model container [2024-10-13 16:40:25,709 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:40:25" (1/1) ... [2024-10-13 16:40:25,761 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 16:40:26,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:40:26,254 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 16:40:26,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:40:26,406 INFO L204 MainTranslator]: Completed translation [2024-10-13 16:40:26,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:40:26 WrapperNode [2024-10-13 16:40:26,407 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 16:40:26,408 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 16:40:26,408 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 16:40:26,408 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 16:40:26,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:40:26" (1/1) ... [2024-10-13 16:40:26,439 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:40:26" (1/1) ... [2024-10-13 16:40:26,467 INFO L138 Inliner]: procedures = 264, calls = 14, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2024-10-13 16:40:26,468 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 16:40:26,469 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 16:40:26,469 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 16:40:26,469 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 16:40:26,479 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:40:26" (1/1) ... [2024-10-13 16:40:26,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:40:26" (1/1) ... [2024-10-13 16:40:26,484 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:40:26" (1/1) ... [2024-10-13 16:40:26,507 INFO L175 MemorySlicer]: Split 5 memory accesses to 1 slices as follows [5]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 3 writes are split as follows [3]. [2024-10-13 16:40:26,507 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:40:26" (1/1) ... [2024-10-13 16:40:26,507 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:40:26" (1/1) ... [2024-10-13 16:40:26,518 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:40:26" (1/1) ... [2024-10-13 16:40:26,521 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:40:26" (1/1) ... [2024-10-13 16:40:26,526 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:40:26" (1/1) ... [2024-10-13 16:40:26,527 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:40:26" (1/1) ... [2024-10-13 16:40:26,533 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 16:40:26,534 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 16:40:26,534 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 16:40:26,534 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 16:40:26,535 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:40:26" (1/1) ... [2024-10-13 16:40:26,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 16:40:26,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:40:26,575 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) [2024-10-13 16:40:26,578 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 [2024-10-13 16:40:26,622 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 16:40:26,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 16:40:26,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 16:40:26,622 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 16:40:26,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 16:40:26,623 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-13 16:40:26,623 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-13 16:40:26,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 16:40:26,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 16:40:26,626 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 16:40:26,766 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 16:40:26,768 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 16:40:26,905 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 16:40:26,905 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 16:40:27,009 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 16:40:27,010 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 16:40:27,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:40:27 BoogieIcfgContainer [2024-10-13 16:40:27,010 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 16:40:27,012 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 16:40:27,012 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 16:40:27,016 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 16:40:27,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 04:40:25" (1/3) ... [2024-10-13 16:40:27,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@143df83b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:40:27, skipping insertion in model container [2024-10-13 16:40:27,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:40:26" (2/3) ... [2024-10-13 16:40:27,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@143df83b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:40:27, skipping insertion in model container [2024-10-13 16:40:27,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:40:27" (3/3) ... [2024-10-13 16:40:27,021 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_06-tricky_address1.i [2024-10-13 16:40:27,039 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 16:40:27,039 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-13 16:40:27,040 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 16:40:27,092 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 16:40:27,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 27 transitions, 58 flow [2024-10-13 16:40:27,149 INFO L124 PetriNetUnfolderBase]: 1/26 cut-off events. [2024-10-13 16:40:27,149 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 16:40:27,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 26 events. 1/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 7. Up to 2 conditions per place. [2024-10-13 16:40:27,151 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 27 transitions, 58 flow [2024-10-13 16:40:27,155 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 26 transitions, 55 flow [2024-10-13 16:40:27,163 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 16:40:27,169 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;@36066db0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 16:40:27,169 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-10-13 16:40:27,172 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 16:40:27,172 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-10-13 16:40:27,172 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 16:40:27,172 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:40:27,173 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-13 16:40:27,173 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-13 16:40:27,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:40:27,177 INFO L85 PathProgramCache]: Analyzing trace with hash 226174, now seen corresponding path program 1 times [2024-10-13 16:40:27,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:40:27,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818427350] [2024-10-13 16:40:27,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:27,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:40:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:27,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:27,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:40:27,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818427350] [2024-10-13 16:40:27,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818427350] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:40:27,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:40:27,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:40:27,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347912839] [2024-10-13 16:40:27,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:40:27,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:40:27,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:40:27,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:40:27,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:40:27,482 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-13 16:40:27,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 26 transitions, 55 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2024-10-13 16:40:27,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:40:27,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-13 16:40:27,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:40:27,627 INFO L124 PetriNetUnfolderBase]: 37/119 cut-off events. [2024-10-13 16:40:27,628 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 16:40:27,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 119 events. 37/119 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 400 event pairs, 36 based on Foata normal form. 1/109 useless extension candidates. Maximal degree in co-relation 192. Up to 92 conditions per place. [2024-10-13 16:40:27,631 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 18 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2024-10-13 16:40:27,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 28 transitions, 101 flow [2024-10-13 16:40:27,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:40:27,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:40:27,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 56 transitions. [2024-10-13 16:40:27,643 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5185185185185185 [2024-10-13 16:40:27,645 INFO L175 Difference]: Start difference. First operand has 29 places, 26 transitions, 55 flow. Second operand 4 states and 56 transitions. [2024-10-13 16:40:27,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 28 transitions, 101 flow [2024-10-13 16:40:27,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 28 transitions, 100 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:40:27,652 INFO L231 Difference]: Finished difference. Result has 33 places, 28 transitions, 78 flow [2024-10-13 16:40:27,654 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=78, PETRI_PLACES=33, PETRI_TRANSITIONS=28} [2024-10-13 16:40:27,659 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 4 predicate places. [2024-10-13 16:40:27,659 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 28 transitions, 78 flow [2024-10-13 16:40:27,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2024-10-13 16:40:27,660 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:40:27,660 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-10-13 16:40:27,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 16:40:27,661 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-13 16:40:27,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:40:27,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1851768394, now seen corresponding path program 1 times [2024-10-13 16:40:27,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:40:27,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285610670] [2024-10-13 16:40:27,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:27,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:40:27,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:27,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:27,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:40:27,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285610670] [2024-10-13 16:40:27,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285610670] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:40:27,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130032438] [2024-10-13 16:40:27,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:27,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:40:27,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:40:27,827 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:40:27,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 16:40:27,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:27,886 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 16:40:27,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:40:27,956 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:27,956 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:40:27,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130032438] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:40:27,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:40:27,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-13 16:40:27,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031381908] [2024-10-13 16:40:27,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:40:27,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 16:40:27,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:40:27,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 16:40:27,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-13 16:40:27,975 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-13 16:40:27,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 28 transitions, 78 flow. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2024-10-13 16:40:27,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:40:27,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-13 16:40:27,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:40:28,080 INFO L124 PetriNetUnfolderBase]: 37/118 cut-off events. [2024-10-13 16:40:28,082 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-13 16:40:28,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 118 events. 37/118 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 395 event pairs, 36 based on Foata normal form. 1/108 useless extension candidates. Maximal degree in co-relation 209. Up to 87 conditions per place. [2024-10-13 16:40:28,085 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 14 selfloop transitions, 6 changer transitions 0/27 dead transitions. [2024-10-13 16:40:28,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 27 transitions, 114 flow [2024-10-13 16:40:28,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 16:40:28,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 16:40:28,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 69 transitions. [2024-10-13 16:40:28,088 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42592592592592593 [2024-10-13 16:40:28,089 INFO L175 Difference]: Start difference. First operand has 33 places, 28 transitions, 78 flow. Second operand 6 states and 69 transitions. [2024-10-13 16:40:28,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 27 transitions, 114 flow [2024-10-13 16:40:28,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 27 transitions, 112 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:40:28,093 INFO L231 Difference]: Finished difference. Result has 36 places, 27 transitions, 84 flow [2024-10-13 16:40:28,093 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=84, PETRI_PLACES=36, PETRI_TRANSITIONS=27} [2024-10-13 16:40:28,094 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 7 predicate places. [2024-10-13 16:40:28,094 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 27 transitions, 84 flow [2024-10-13 16:40:28,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2024-10-13 16:40:28,094 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:40:28,094 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-10-13 16:40:28,111 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 16:40:28,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:40:28,299 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-13 16:40:28,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:40:28,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1570245148, now seen corresponding path program 1 times [2024-10-13 16:40:28,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:40:28,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710471951] [2024-10-13 16:40:28,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:28,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:40:28,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:28,357 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 16:40:28,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:40:28,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710471951] [2024-10-13 16:40:28,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710471951] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:40:28,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:40:28,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:40:28,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31661362] [2024-10-13 16:40:28,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:40:28,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:40:28,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:40:28,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:40:28,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:40:28,367 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-13 16:40:28,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2024-10-13 16:40:28,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:40:28,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-13 16:40:28,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:40:28,445 INFO L124 PetriNetUnfolderBase]: 37/117 cut-off events. [2024-10-13 16:40:28,445 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-13 16:40:28,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 117 events. 37/117 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 391 event pairs, 36 based on Foata normal form. 1/108 useless extension candidates. Maximal degree in co-relation 205. Up to 90 conditions per place. [2024-10-13 16:40:28,450 INFO L140 encePairwiseOnDemand]: 24/27 looper letters, 15 selfloop transitions, 4 changer transitions 0/26 dead transitions. [2024-10-13 16:40:28,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 26 transitions, 118 flow [2024-10-13 16:40:28,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:40:28,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:40:28,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2024-10-13 16:40:28,452 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5185185185185185 [2024-10-13 16:40:28,452 INFO L175 Difference]: Start difference. First operand has 36 places, 27 transitions, 84 flow. Second operand 3 states and 42 transitions. [2024-10-13 16:40:28,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 26 transitions, 118 flow [2024-10-13 16:40:28,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 26 transitions, 96 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-10-13 16:40:28,454 INFO L231 Difference]: Finished difference. Result has 31 places, 26 transitions, 66 flow [2024-10-13 16:40:28,454 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2024-10-13 16:40:28,456 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2024-10-13 16:40:28,456 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 66 flow [2024-10-13 16:40:28,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2024-10-13 16:40:28,457 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:40:28,457 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:40:28,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 16:40:28,458 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-13 16:40:28,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:40:28,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1666888622, now seen corresponding path program 1 times [2024-10-13 16:40:28,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:40:28,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107367385] [2024-10-13 16:40:28,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:28,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:40:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:28,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:28,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:40:28,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107367385] [2024-10-13 16:40:28,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107367385] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:40:28,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11902672] [2024-10-13 16:40:28,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:28,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:40:28,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:40:28,558 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:40:28,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 16:40:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:28,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:40:28,625 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:40:28,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:28,653 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:40:28,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:28,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11902672] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:40:28,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:40:28,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-10-13 16:40:28,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433766549] [2024-10-13 16:40:28,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:40:28,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 16:40:28,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:40:28,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 16:40:28,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-13 16:40:28,715 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-13 16:40:28,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 66 flow. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 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) [2024-10-13 16:40:28,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:40:28,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-13 16:40:28,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:40:28,871 INFO L124 PetriNetUnfolderBase]: 37/121 cut-off events. [2024-10-13 16:40:28,871 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-10-13 16:40:28,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 121 events. 37/121 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 388 event pairs, 36 based on Foata normal form. 2/114 useless extension candidates. Maximal degree in co-relation 198. Up to 88 conditions per place. [2024-10-13 16:40:28,873 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 15 selfloop transitions, 7 changer transitions 0/29 dead transitions. [2024-10-13 16:40:28,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 29 transitions, 125 flow [2024-10-13 16:40:28,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 16:40:28,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 16:40:28,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 80 transitions. [2024-10-13 16:40:28,877 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42328042328042326 [2024-10-13 16:40:28,877 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 66 flow. Second operand 7 states and 80 transitions. [2024-10-13 16:40:28,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 29 transitions, 125 flow [2024-10-13 16:40:28,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 29 transitions, 111 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 16:40:28,879 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 92 flow [2024-10-13 16:40:28,880 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=92, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2024-10-13 16:40:28,881 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 8 predicate places. [2024-10-13 16:40:28,882 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 92 flow [2024-10-13 16:40:28,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 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) [2024-10-13 16:40:28,883 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:40:28,883 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:40:28,900 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 16:40:29,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-10-13 16:40:29,084 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-13 16:40:29,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:40:29,085 INFO L85 PathProgramCache]: Analyzing trace with hash -837394770, now seen corresponding path program 2 times [2024-10-13 16:40:29,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:40:29,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560507807] [2024-10-13 16:40:29,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:29,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:40:29,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:29,255 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:29,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:40:29,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560507807] [2024-10-13 16:40:29,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560507807] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:40:29,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205694833] [2024-10-13 16:40:29,257 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 16:40:29,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:40:29,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:40:29,259 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:40:29,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 16:40:29,328 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 16:40:29,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 16:40:29,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 16:40:29,330 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:40:29,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2024-10-13 16:40:29,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2024-10-13 16:40:29,435 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 16:40:29,435 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:40:29,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205694833] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:40:29,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:40:29,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 10 [2024-10-13 16:40:29,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486745278] [2024-10-13 16:40:29,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:40:29,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:40:29,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:40:29,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:40:29,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-13 16:40:29,448 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-13 16:40:29,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2024-10-13 16:40:29,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:40:29,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-13 16:40:29,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:40:29,539 INFO L124 PetriNetUnfolderBase]: 50/139 cut-off events. [2024-10-13 16:40:29,539 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-10-13 16:40:29,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 139 events. 50/139 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 429 event pairs, 16 based on Foata normal form. 7/133 useless extension candidates. Maximal degree in co-relation 244. Up to 68 conditions per place. [2024-10-13 16:40:29,540 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 32 selfloop transitions, 6 changer transitions 3/46 dead transitions. [2024-10-13 16:40:29,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 46 transitions, 208 flow [2024-10-13 16:40:29,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 16:40:29,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 16:40:29,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 78 transitions. [2024-10-13 16:40:29,542 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5777777777777777 [2024-10-13 16:40:29,542 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 92 flow. Second operand 5 states and 78 transitions. [2024-10-13 16:40:29,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 46 transitions, 208 flow [2024-10-13 16:40:29,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 46 transitions, 204 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 16:40:29,544 INFO L231 Difference]: Finished difference. Result has 43 places, 32 transitions, 126 flow [2024-10-13 16:40:29,544 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=43, PETRI_TRANSITIONS=32} [2024-10-13 16:40:29,545 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 14 predicate places. [2024-10-13 16:40:29,545 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 32 transitions, 126 flow [2024-10-13 16:40:29,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2024-10-13 16:40:29,545 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:40:29,545 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:40:29,563 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 16:40:29,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:40:29,747 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-13 16:40:29,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:40:29,747 INFO L85 PathProgramCache]: Analyzing trace with hash -836623818, now seen corresponding path program 1 times [2024-10-13 16:40:29,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:40:29,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049268301] [2024-10-13 16:40:29,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:29,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:40:29,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:29,881 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:29,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:40:29,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049268301] [2024-10-13 16:40:29,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049268301] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:40:29,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920265992] [2024-10-13 16:40:29,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:29,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:40:29,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:40:29,884 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:40:29,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 16:40:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:29,950 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 16:40:29,951 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:40:29,982 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:29,983 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:40:30,066 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:30,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920265992] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:40:30,067 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:40:30,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-10-13 16:40:30,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460078377] [2024-10-13 16:40:30,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:40:30,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-13 16:40:30,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:40:30,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-13 16:40:30,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-13 16:40:30,088 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-13 16:40:30,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 32 transitions, 126 flow. Second operand has 18 states, 18 states have (on average 9.277777777777779) internal successors, (167), 18 states have internal predecessors, (167), 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) [2024-10-13 16:40:30,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:40:30,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-13 16:40:30,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:40:30,243 INFO L124 PetriNetUnfolderBase]: 27/123 cut-off events. [2024-10-13 16:40:30,243 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2024-10-13 16:40:30,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 123 events. 27/123 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 373 event pairs, 26 based on Foata normal form. 4/121 useless extension candidates. Maximal degree in co-relation 259. Up to 72 conditions per place. [2024-10-13 16:40:30,244 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 17 selfloop transitions, 15 changer transitions 0/40 dead transitions. [2024-10-13 16:40:30,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 40 transitions, 238 flow [2024-10-13 16:40:30,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 16:40:30,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-13 16:40:30,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 154 transitions. [2024-10-13 16:40:30,246 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3802469135802469 [2024-10-13 16:40:30,246 INFO L175 Difference]: Start difference. First operand has 43 places, 32 transitions, 126 flow. Second operand 15 states and 154 transitions. [2024-10-13 16:40:30,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 40 transitions, 238 flow [2024-10-13 16:40:30,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 40 transitions, 238 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 16:40:30,249 INFO L231 Difference]: Finished difference. Result has 61 places, 40 transitions, 223 flow [2024-10-13 16:40:30,249 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=223, PETRI_PLACES=61, PETRI_TRANSITIONS=40} [2024-10-13 16:40:30,250 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 32 predicate places. [2024-10-13 16:40:30,250 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 40 transitions, 223 flow [2024-10-13 16:40:30,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 9.277777777777779) internal successors, (167), 18 states have internal predecessors, (167), 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) [2024-10-13 16:40:30,251 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:40:30,251 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:40:30,268 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 16:40:30,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:40:30,456 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-13 16:40:30,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:40:30,456 INFO L85 PathProgramCache]: Analyzing trace with hash 2042935350, now seen corresponding path program 2 times [2024-10-13 16:40:30,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:40:30,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699650221] [2024-10-13 16:40:30,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:30,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:40:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:30,723 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:30,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:40:30,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699650221] [2024-10-13 16:40:30,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699650221] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:40:30,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288309453] [2024-10-13 16:40:30,728 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 16:40:30,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:40:30,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:40:30,730 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:40:30,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 16:40:30,791 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 16:40:30,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 16:40:30,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 16:40:30,793 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:40:30,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2024-10-13 16:40:30,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-10-13 16:40:30,890 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:40:30,891 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:40:30,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288309453] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:40:30,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:40:30,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [16] total 19 [2024-10-13 16:40:30,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995389360] [2024-10-13 16:40:30,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:40:30,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 16:40:30,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:40:30,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 16:40:30,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2024-10-13 16:40:30,900 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-13 16:40:30,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 40 transitions, 223 flow. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 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) [2024-10-13 16:40:30,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:40:30,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-13 16:40:30,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:40:31,027 INFO L124 PetriNetUnfolderBase]: 37/134 cut-off events. [2024-10-13 16:40:31,031 INFO L125 PetriNetUnfolderBase]: For 118/120 co-relation queries the response was YES. [2024-10-13 16:40:31,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 134 events. 37/134 cut-off events. For 118/120 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 406 event pairs, 6 based on Foata normal form. 7/141 useless extension candidates. Maximal degree in co-relation 319. Up to 49 conditions per place. [2024-10-13 16:40:31,033 INFO L140 encePairwiseOnDemand]: 20/27 looper letters, 42 selfloop transitions, 9 changer transitions 0/57 dead transitions. [2024-10-13 16:40:31,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 57 transitions, 375 flow [2024-10-13 16:40:31,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 16:40:31,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 16:40:31,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 87 transitions. [2024-10-13 16:40:31,035 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5370370370370371 [2024-10-13 16:40:31,036 INFO L175 Difference]: Start difference. First operand has 61 places, 40 transitions, 223 flow. Second operand 6 states and 87 transitions. [2024-10-13 16:40:31,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 57 transitions, 375 flow [2024-10-13 16:40:31,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 57 transitions, 365 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-10-13 16:40:31,042 INFO L231 Difference]: Finished difference. Result has 67 places, 45 transitions, 277 flow [2024-10-13 16:40:31,042 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=277, PETRI_PLACES=67, PETRI_TRANSITIONS=45} [2024-10-13 16:40:31,043 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 38 predicate places. [2024-10-13 16:40:31,043 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 45 transitions, 277 flow [2024-10-13 16:40:31,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 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) [2024-10-13 16:40:31,044 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:40:31,045 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:40:31,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 16:40:31,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:40:31,245 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-13 16:40:31,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:40:31,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1117412882, now seen corresponding path program 1 times [2024-10-13 16:40:31,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:40:31,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366171324] [2024-10-13 16:40:31,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:31,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:40:31,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:31,499 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:31,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:40:31,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366171324] [2024-10-13 16:40:31,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366171324] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:40:31,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582026130] [2024-10-13 16:40:31,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:31,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:40:31,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:40:31,502 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:40:31,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 16:40:31,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:31,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-13 16:40:31,581 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:40:31,652 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:31,652 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:40:31,856 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:40:31,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582026130] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:40:31,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:40:31,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-10-13 16:40:31,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467132717] [2024-10-13 16:40:31,858 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:40:31,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-13 16:40:31,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:40:31,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-13 16:40:31,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-13 16:40:31,887 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-13 16:40:31,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 45 transitions, 277 flow. Second operand has 23 states, 23 states have (on average 9.26086956521739) internal successors, (213), 23 states have internal predecessors, (213), 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) [2024-10-13 16:40:31,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:40:31,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-13 16:40:31,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:40:32,101 INFO L124 PetriNetUnfolderBase]: 26/136 cut-off events. [2024-10-13 16:40:32,101 INFO L125 PetriNetUnfolderBase]: For 220/222 co-relation queries the response was YES. [2024-10-13 16:40:32,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 421 conditions, 136 events. 26/136 cut-off events. For 220/222 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 407 event pairs, 22 based on Foata normal form. 3/139 useless extension candidates. Maximal degree in co-relation 374. Up to 74 conditions per place. [2024-10-13 16:40:32,103 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 21 selfloop transitions, 21 changer transitions 0/51 dead transitions. [2024-10-13 16:40:32,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 51 transitions, 415 flow [2024-10-13 16:40:32,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-13 16:40:32,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-13 16:40:32,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 207 transitions. [2024-10-13 16:40:32,106 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36507936507936506 [2024-10-13 16:40:32,107 INFO L175 Difference]: Start difference. First operand has 67 places, 45 transitions, 277 flow. Second operand 21 states and 207 transitions. [2024-10-13 16:40:32,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 51 transitions, 415 flow [2024-10-13 16:40:32,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 51 transitions, 415 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 16:40:32,114 INFO L231 Difference]: Finished difference. Result has 90 places, 51 transitions, 388 flow [2024-10-13 16:40:32,114 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=388, PETRI_PLACES=90, PETRI_TRANSITIONS=51} [2024-10-13 16:40:32,115 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 61 predicate places. [2024-10-13 16:40:32,116 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 51 transitions, 388 flow [2024-10-13 16:40:32,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.26086956521739) internal successors, (213), 23 states have internal predecessors, (213), 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) [2024-10-13 16:40:32,117 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:40:32,117 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:40:32,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-13 16:40:32,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:40:32,322 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-13 16:40:32,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:40:32,322 INFO L85 PathProgramCache]: Analyzing trace with hash 118621478, now seen corresponding path program 2 times [2024-10-13 16:40:32,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:40:32,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891098132] [2024-10-13 16:40:32,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:32,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:40:32,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:32,480 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-13 16:40:32,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:40:32,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891098132] [2024-10-13 16:40:32,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891098132] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:40:32,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:40:32,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:40:32,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084120086] [2024-10-13 16:40:32,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:40:32,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 16:40:32,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:40:32,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 16:40:32,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 16:40:32,493 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-13 16:40:32,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 51 transitions, 388 flow. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 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) [2024-10-13 16:40:32,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:40:32,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-13 16:40:32,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:40:32,580 INFO L124 PetriNetUnfolderBase]: 30/136 cut-off events. [2024-10-13 16:40:32,581 INFO L125 PetriNetUnfolderBase]: For 282/284 co-relation queries the response was YES. [2024-10-13 16:40:32,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 459 conditions, 136 events. 30/136 cut-off events. For 282/284 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 375 event pairs, 14 based on Foata normal form. 9/145 useless extension candidates. Maximal degree in co-relation 408. Up to 54 conditions per place. [2024-10-13 16:40:32,582 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 43 selfloop transitions, 6 changer transitions 3/58 dead transitions. [2024-10-13 16:40:32,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 58 transitions, 512 flow [2024-10-13 16:40:32,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 16:40:32,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 16:40:32,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 73 transitions. [2024-10-13 16:40:32,583 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5407407407407407 [2024-10-13 16:40:32,584 INFO L175 Difference]: Start difference. First operand has 90 places, 51 transitions, 388 flow. Second operand 5 states and 73 transitions. [2024-10-13 16:40:32,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 58 transitions, 512 flow [2024-10-13 16:40:32,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 58 transitions, 463 flow, removed 1 selfloop flow, removed 14 redundant places. [2024-10-13 16:40:32,588 INFO L231 Difference]: Finished difference. Result has 80 places, 49 transitions, 337 flow [2024-10-13 16:40:32,588 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=337, PETRI_PLACES=80, PETRI_TRANSITIONS=49} [2024-10-13 16:40:32,589 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 51 predicate places. [2024-10-13 16:40:32,589 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 49 transitions, 337 flow [2024-10-13 16:40:32,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 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) [2024-10-13 16:40:32,590 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:40:32,590 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:40:32,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 16:40:32,590 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-13 16:40:32,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:40:32,591 INFO L85 PathProgramCache]: Analyzing trace with hash 142521011, now seen corresponding path program 1 times [2024-10-13 16:40:32,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:40:32,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294300263] [2024-10-13 16:40:32,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:32,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:40:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:32,761 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-13 16:40:32,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:40:32,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294300263] [2024-10-13 16:40:32,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294300263] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:40:32,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:40:32,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:40:32,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198451969] [2024-10-13 16:40:32,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:40:32,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 16:40:32,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:40:32,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 16:40:32,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 16:40:32,773 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-13 16:40:32,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 49 transitions, 337 flow. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 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) [2024-10-13 16:40:32,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:40:32,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-13 16:40:32,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:40:32,876 INFO L124 PetriNetUnfolderBase]: 30/128 cut-off events. [2024-10-13 16:40:32,877 INFO L125 PetriNetUnfolderBase]: For 257/259 co-relation queries the response was YES. [2024-10-13 16:40:32,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 128 events. 30/128 cut-off events. For 257/259 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 322 event pairs, 8 based on Foata normal form. 9/137 useless extension candidates. Maximal degree in co-relation 390. Up to 51 conditions per place. [2024-10-13 16:40:32,879 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 44 selfloop transitions, 6 changer transitions 4/59 dead transitions. [2024-10-13 16:40:32,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 59 transitions, 475 flow [2024-10-13 16:40:32,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 16:40:32,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 16:40:32,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 85 transitions. [2024-10-13 16:40:32,880 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5246913580246914 [2024-10-13 16:40:32,880 INFO L175 Difference]: Start difference. First operand has 80 places, 49 transitions, 337 flow. Second operand 6 states and 85 transitions. [2024-10-13 16:40:32,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 59 transitions, 475 flow [2024-10-13 16:40:32,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 59 transitions, 451 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-10-13 16:40:32,885 INFO L231 Difference]: Finished difference. Result has 79 places, 47 transitions, 316 flow [2024-10-13 16:40:32,886 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=316, PETRI_PLACES=79, PETRI_TRANSITIONS=47} [2024-10-13 16:40:32,887 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 50 predicate places. [2024-10-13 16:40:32,887 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 47 transitions, 316 flow [2024-10-13 16:40:32,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 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) [2024-10-13 16:40:32,888 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:40:32,888 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:40:32,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 16:40:32,888 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-13 16:40:32,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:40:32,889 INFO L85 PathProgramCache]: Analyzing trace with hash -2025444567, now seen corresponding path program 1 times [2024-10-13 16:40:32,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:40:32,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299659310] [2024-10-13 16:40:32,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:32,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:40:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:33,236 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-13 16:40:33,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:40:33,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299659310] [2024-10-13 16:40:33,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299659310] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:40:33,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:40:33,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 16:40:33,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858453564] [2024-10-13 16:40:33,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:40:33,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 16:40:33,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:40:33,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 16:40:33,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-13 16:40:33,264 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-10-13 16:40:33,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 47 transitions, 316 flow. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2024-10-13 16:40:33,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:40:33,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-10-13 16:40:33,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:40:33,500 INFO L124 PetriNetUnfolderBase]: 40/156 cut-off events. [2024-10-13 16:40:33,501 INFO L125 PetriNetUnfolderBase]: For 250/252 co-relation queries the response was YES. [2024-10-13 16:40:33,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 494 conditions, 156 events. 40/156 cut-off events. For 250/252 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 468 event pairs, 14 based on Foata normal form. 5/161 useless extension candidates. Maximal degree in co-relation 430. Up to 41 conditions per place. [2024-10-13 16:40:33,502 INFO L140 encePairwiseOnDemand]: 19/27 looper letters, 53 selfloop transitions, 12 changer transitions 3/71 dead transitions. [2024-10-13 16:40:33,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 71 transitions, 539 flow [2024-10-13 16:40:33,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-13 16:40:33,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-13 16:40:33,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 128 transitions. [2024-10-13 16:40:33,504 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3646723646723647 [2024-10-13 16:40:33,504 INFO L175 Difference]: Start difference. First operand has 79 places, 47 transitions, 316 flow. Second operand 13 states and 128 transitions. [2024-10-13 16:40:33,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 71 transitions, 539 flow [2024-10-13 16:40:33,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 71 transitions, 515 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-10-13 16:40:33,507 INFO L231 Difference]: Finished difference. Result has 88 places, 52 transitions, 367 flow [2024-10-13 16:40:33,507 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=367, PETRI_PLACES=88, PETRI_TRANSITIONS=52} [2024-10-13 16:40:33,508 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 59 predicate places. [2024-10-13 16:40:33,508 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 52 transitions, 367 flow [2024-10-13 16:40:33,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2024-10-13 16:40:33,508 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:40:33,509 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:40:33,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 16:40:33,509 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-13 16:40:33,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:40:33,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1852933552, now seen corresponding path program 1 times [2024-10-13 16:40:33,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:40:33,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999332392] [2024-10-13 16:40:33,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:33,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:40:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:33,804 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-13 16:40:33,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:40:33,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999332392] [2024-10-13 16:40:33,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999332392] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:40:33,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:40:33,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 16:40:33,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896643702] [2024-10-13 16:40:33,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:40:33,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 16:40:33,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:40:33,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 16:40:33,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-13 16:40:33,834 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-10-13 16:40:33,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 52 transitions, 367 flow. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2024-10-13 16:40:33,835 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:40:33,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-10-13 16:40:33,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:40:34,023 INFO L124 PetriNetUnfolderBase]: 37/144 cut-off events. [2024-10-13 16:40:34,023 INFO L125 PetriNetUnfolderBase]: For 288/290 co-relation queries the response was YES. [2024-10-13 16:40:34,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486 conditions, 144 events. 37/144 cut-off events. For 288/290 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 406 event pairs, 7 based on Foata normal form. 5/149 useless extension candidates. Maximal degree in co-relation 410. Up to 46 conditions per place. [2024-10-13 16:40:34,025 INFO L140 encePairwiseOnDemand]: 19/27 looper letters, 53 selfloop transitions, 12 changer transitions 0/68 dead transitions. [2024-10-13 16:40:34,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 68 transitions, 552 flow [2024-10-13 16:40:34,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 16:40:34,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 16:40:34,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 96 transitions. [2024-10-13 16:40:34,026 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3950617283950617 [2024-10-13 16:40:34,026 INFO L175 Difference]: Start difference. First operand has 88 places, 52 transitions, 367 flow. Second operand 9 states and 96 transitions. [2024-10-13 16:40:34,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 68 transitions, 552 flow [2024-10-13 16:40:34,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 68 transitions, 523 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-10-13 16:40:34,029 INFO L231 Difference]: Finished difference. Result has 87 places, 51 transitions, 360 flow [2024-10-13 16:40:34,030 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=360, PETRI_PLACES=87, PETRI_TRANSITIONS=51} [2024-10-13 16:40:34,031 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 58 predicate places. [2024-10-13 16:40:34,032 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 51 transitions, 360 flow [2024-10-13 16:40:34,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2024-10-13 16:40:34,032 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:40:34,032 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:40:34,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 16:40:34,033 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-13 16:40:34,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:40:34,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1997367529, now seen corresponding path program 2 times [2024-10-13 16:40:34,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:40:34,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421635783] [2024-10-13 16:40:34,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:34,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:40:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:34,296 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-13 16:40:34,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:40:34,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421635783] [2024-10-13 16:40:34,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421635783] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:40:34,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:40:34,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 16:40:34,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691804742] [2024-10-13 16:40:34,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:40:34,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 16:40:34,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:40:34,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 16:40:34,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-13 16:40:34,311 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-10-13 16:40:34,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 51 transitions, 360 flow. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2024-10-13 16:40:34,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:40:34,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-10-13 16:40:34,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:40:34,492 INFO L124 PetriNetUnfolderBase]: 35/141 cut-off events. [2024-10-13 16:40:34,492 INFO L125 PetriNetUnfolderBase]: For 244/246 co-relation queries the response was YES. [2024-10-13 16:40:34,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 483 conditions, 141 events. 35/141 cut-off events. For 244/246 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 382 event pairs, 4 based on Foata normal form. 5/146 useless extension candidates. Maximal degree in co-relation 423. Up to 46 conditions per place. [2024-10-13 16:40:34,493 INFO L140 encePairwiseOnDemand]: 20/27 looper letters, 46 selfloop transitions, 13 changer transitions 0/62 dead transitions. [2024-10-13 16:40:34,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 62 transitions, 500 flow [2024-10-13 16:40:34,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 16:40:34,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 16:40:34,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 98 transitions. [2024-10-13 16:40:34,495 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.362962962962963 [2024-10-13 16:40:34,495 INFO L175 Difference]: Start difference. First operand has 87 places, 51 transitions, 360 flow. Second operand 10 states and 98 transitions. [2024-10-13 16:40:34,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 62 transitions, 500 flow [2024-10-13 16:40:34,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 62 transitions, 472 flow, removed 1 selfloop flow, removed 9 redundant places. [2024-10-13 16:40:34,498 INFO L231 Difference]: Finished difference. Result has 86 places, 50 transitions, 354 flow [2024-10-13 16:40:34,499 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=354, PETRI_PLACES=86, PETRI_TRANSITIONS=50} [2024-10-13 16:40:34,499 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 57 predicate places. [2024-10-13 16:40:34,499 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 50 transitions, 354 flow [2024-10-13 16:40:34,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2024-10-13 16:40:34,500 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:40:34,500 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:40:34,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 16:40:34,500 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-13 16:40:34,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:40:34,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1606365044, now seen corresponding path program 1 times [2024-10-13 16:40:34,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:40:34,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363635184] [2024-10-13 16:40:34,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:34,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:40:34,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:34,795 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-13 16:40:34,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:40:34,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363635184] [2024-10-13 16:40:34,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363635184] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:40:34,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:40:34,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 16:40:34,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511939935] [2024-10-13 16:40:34,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:40:34,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 16:40:34,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:40:34,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 16:40:34,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-13 16:40:34,817 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-10-13 16:40:34,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 50 transitions, 354 flow. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2024-10-13 16:40:34,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:40:34,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-10-13 16:40:34,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:40:34,963 INFO L124 PetriNetUnfolderBase]: 33/136 cut-off events. [2024-10-13 16:40:34,963 INFO L125 PetriNetUnfolderBase]: For 243/245 co-relation queries the response was YES. [2024-10-13 16:40:34,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 463 conditions, 136 events. 33/136 cut-off events. For 243/245 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 354 event pairs, 12 based on Foata normal form. 5/141 useless extension candidates. Maximal degree in co-relation 343. Up to 45 conditions per place. [2024-10-13 16:40:34,964 INFO L140 encePairwiseOnDemand]: 20/27 looper letters, 37 selfloop transitions, 8 changer transitions 11/59 dead transitions. [2024-10-13 16:40:34,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 59 transitions, 482 flow [2024-10-13 16:40:34,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 16:40:34,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 16:40:34,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 89 transitions. [2024-10-13 16:40:34,965 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3662551440329218 [2024-10-13 16:40:34,966 INFO L175 Difference]: Start difference. First operand has 86 places, 50 transitions, 354 flow. Second operand 9 states and 89 transitions. [2024-10-13 16:40:34,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 59 transitions, 482 flow [2024-10-13 16:40:34,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 59 transitions, 448 flow, removed 2 selfloop flow, removed 9 redundant places. [2024-10-13 16:40:34,969 INFO L231 Difference]: Finished difference. Result has 83 places, 44 transitions, 312 flow [2024-10-13 16:40:34,970 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=312, PETRI_PLACES=83, PETRI_TRANSITIONS=44} [2024-10-13 16:40:34,970 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 54 predicate places. [2024-10-13 16:40:34,970 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 44 transitions, 312 flow [2024-10-13 16:40:34,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2024-10-13 16:40:34,971 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:40:34,971 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:40:34,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 16:40:34,972 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-13 16:40:34,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:40:34,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1819393334, now seen corresponding path program 1 times [2024-10-13 16:40:34,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:40:34,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158312788] [2024-10-13 16:40:34,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:34,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:40:34,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:35,261 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-13 16:40:35,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:40:35,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158312788] [2024-10-13 16:40:35,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158312788] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:40:35,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:40:35,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 16:40:35,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549040180] [2024-10-13 16:40:35,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:40:35,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 16:40:35,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:40:35,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 16:40:35,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-13 16:40:35,279 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-10-13 16:40:35,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 44 transitions, 312 flow. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2024-10-13 16:40:35,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:40:35,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-10-13 16:40:35,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:40:35,401 INFO L124 PetriNetUnfolderBase]: 26/120 cut-off events. [2024-10-13 16:40:35,401 INFO L125 PetriNetUnfolderBase]: For 213/215 co-relation queries the response was YES. [2024-10-13 16:40:35,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 398 conditions, 120 events. 26/120 cut-off events. For 213/215 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 283 event pairs, 12 based on Foata normal form. 5/125 useless extension candidates. Maximal degree in co-relation 288. Up to 43 conditions per place. [2024-10-13 16:40:35,402 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 35 selfloop transitions, 4 changer transitions 12/54 dead transitions. [2024-10-13 16:40:35,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 54 transitions, 441 flow [2024-10-13 16:40:35,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 16:40:35,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 16:40:35,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 72 transitions. [2024-10-13 16:40:35,403 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38095238095238093 [2024-10-13 16:40:35,403 INFO L175 Difference]: Start difference. First operand has 83 places, 44 transitions, 312 flow. Second operand 7 states and 72 transitions. [2024-10-13 16:40:35,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 54 transitions, 441 flow [2024-10-13 16:40:35,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 54 transitions, 413 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-10-13 16:40:35,406 INFO L231 Difference]: Finished difference. Result has 76 places, 41 transitions, 284 flow [2024-10-13 16:40:35,407 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=284, PETRI_PLACES=76, PETRI_TRANSITIONS=41} [2024-10-13 16:40:35,407 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 47 predicate places. [2024-10-13 16:40:35,407 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 41 transitions, 284 flow [2024-10-13 16:40:35,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2024-10-13 16:40:35,408 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:40:35,408 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:40:35,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-13 16:40:35,408 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-13 16:40:35,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:40:35,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1635728104, now seen corresponding path program 2 times [2024-10-13 16:40:35,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:40:35,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049062694] [2024-10-13 16:40:35,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:35,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:40:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:35,628 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-13 16:40:35,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:40:35,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049062694] [2024-10-13 16:40:35,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049062694] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:40:35,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:40:35,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 16:40:35,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975604932] [2024-10-13 16:40:35,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:40:35,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 16:40:35,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:40:35,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 16:40:35,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-13 16:40:35,651 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-10-13 16:40:35,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 41 transitions, 284 flow. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2024-10-13 16:40:35,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:40:35,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-10-13 16:40:35,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:40:35,739 INFO L124 PetriNetUnfolderBase]: 14/83 cut-off events. [2024-10-13 16:40:35,739 INFO L125 PetriNetUnfolderBase]: For 171/173 co-relation queries the response was YES. [2024-10-13 16:40:35,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 83 events. 14/83 cut-off events. For 171/173 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 125 event pairs, 8 based on Foata normal form. 5/88 useless extension candidates. Maximal degree in co-relation 273. Up to 26 conditions per place. [2024-10-13 16:40:35,740 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 31 selfloop transitions, 3 changer transitions 9/46 dead transitions. [2024-10-13 16:40:35,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 46 transitions, 375 flow [2024-10-13 16:40:35,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 16:40:35,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 16:40:35,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 67 transitions. [2024-10-13 16:40:35,741 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3544973544973545 [2024-10-13 16:40:35,741 INFO L175 Difference]: Start difference. First operand has 76 places, 41 transitions, 284 flow. Second operand 7 states and 67 transitions. [2024-10-13 16:40:35,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 46 transitions, 375 flow [2024-10-13 16:40:35,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 46 transitions, 357 flow, removed 1 selfloop flow, removed 7 redundant places. [2024-10-13 16:40:35,744 INFO L231 Difference]: Finished difference. Result has 70 places, 37 transitions, 249 flow [2024-10-13 16:40:35,744 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=249, PETRI_PLACES=70, PETRI_TRANSITIONS=37} [2024-10-13 16:40:35,745 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 41 predicate places. [2024-10-13 16:40:35,745 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 37 transitions, 249 flow [2024-10-13 16:40:35,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2024-10-13 16:40:35,745 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:40:35,746 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:40:35,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-13 16:40:35,746 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-13 16:40:35,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:40:35,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1788851496, now seen corresponding path program 3 times [2024-10-13 16:40:35,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:40:35,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741091118] [2024-10-13 16:40:35,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:40:35,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:40:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:40:36,017 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-13 16:40:36,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:40:36,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741091118] [2024-10-13 16:40:36,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741091118] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:40:36,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:40:36,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 16:40:36,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175858384] [2024-10-13 16:40:36,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:40:36,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 16:40:36,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:40:36,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 16:40:36,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-13 16:40:36,036 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-10-13 16:40:36,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 37 transitions, 249 flow. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2024-10-13 16:40:36,037 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:40:36,037 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-10-13 16:40:36,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:40:36,110 INFO L124 PetriNetUnfolderBase]: 7/59 cut-off events. [2024-10-13 16:40:36,110 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2024-10-13 16:40:36,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 59 events. 7/59 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 3/62 useless extension candidates. Maximal degree in co-relation 197. Up to 26 conditions per place. [2024-10-13 16:40:36,111 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2024-10-13 16:40:36,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 40 transitions, 326 flow [2024-10-13 16:40:36,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 16:40:36,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 16:40:36,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 61 transitions. [2024-10-13 16:40:36,112 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.32275132275132273 [2024-10-13 16:40:36,112 INFO L175 Difference]: Start difference. First operand has 70 places, 37 transitions, 249 flow. Second operand 7 states and 61 transitions. [2024-10-13 16:40:36,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 40 transitions, 326 flow [2024-10-13 16:40:36,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 40 transitions, 312 flow, removed 1 selfloop flow, removed 7 redundant places. [2024-10-13 16:40:36,114 INFO L231 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2024-10-13 16:40:36,114 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2024-10-13 16:40:36,115 INFO L277 CegarLoopForPetriNet]: 29 programPoint places, 31 predicate places. [2024-10-13 16:40:36,115 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2024-10-13 16:40:36,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2024-10-13 16:40:36,118 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2024-10-13 16:40:36,118 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2024-10-13 16:40:36,118 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2024-10-13 16:40:36,118 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2024-10-13 16:40:36,118 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-10-13 16:40:36,119 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2024-10-13 16:40:36,119 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2024-10-13 16:40:36,119 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2024-10-13 16:40:36,119 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2024-10-13 16:40:36,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-13 16:40:36,119 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-13 16:40:36,126 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-13 16:40:36,126 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 16:40:36,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 04:40:36 BasicIcfg [2024-10-13 16:40:36,132 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 16:40:36,132 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 16:40:36,133 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 16:40:36,133 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 16:40:36,133 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:40:27" (3/4) ... [2024-10-13 16:40:36,135 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 16:40:36,137 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-13 16:40:36,142 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2024-10-13 16:40:36,142 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-13 16:40:36,143 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-13 16:40:36,228 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 16:40:36,228 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 16:40:36,229 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 16:40:36,229 INFO L158 Benchmark]: Toolchain (without parser) took 10526.87ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 85.9MB in the beginning and 197.1MB in the end (delta: -111.2MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. [2024-10-13 16:40:36,229 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 142.6MB. Free memory is still 102.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 16:40:36,230 INFO L158 Benchmark]: CACSL2BoogieTranslator took 703.51ms. Allocated memory is still 142.6MB. Free memory was 85.6MB in the beginning and 99.9MB in the end (delta: -14.3MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2024-10-13 16:40:36,230 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.66ms. Allocated memory is still 142.6MB. Free memory was 99.9MB in the beginning and 97.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 16:40:36,231 INFO L158 Benchmark]: Boogie Preprocessor took 64.62ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 95.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 16:40:36,231 INFO L158 Benchmark]: RCFGBuilder took 476.34ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 72.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-13 16:40:36,231 INFO L158 Benchmark]: TraceAbstraction took 9119.62ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 71.3MB in the beginning and 201.3MB in the end (delta: -130.0MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2024-10-13 16:40:36,231 INFO L158 Benchmark]: Witness Printer took 96.29ms. Allocated memory is still 318.8MB. Free memory was 201.3MB in the beginning and 197.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 16:40:36,233 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 142.6MB. Free memory is still 102.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 703.51ms. Allocated memory is still 142.6MB. Free memory was 85.6MB in the beginning and 99.9MB in the end (delta: -14.3MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.66ms. Allocated memory is still 142.6MB. Free memory was 99.9MB in the beginning and 97.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.62ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 95.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 476.34ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 72.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 9119.62ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 71.3MB in the beginning and 201.3MB in the end (delta: -130.0MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. * Witness Printer took 96.29ms. Allocated memory is still 318.8MB. Free memory was 201.3MB in the beginning and 197.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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: 943]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 943]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: 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, 38 locations, 9 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: 9.0s, OverallIterations: 17, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 519 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 435 mSDsluCounter, 339 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 284 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1777 IncrementalHoareTripleChecker+Invalid, 1825 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 55 mSDtfsCounter, 1777 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 314 GetRequests, 126 SyntacticMatches, 11 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 647 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=388occurred in iteration=8, InterpolantAutomatonStates: 140, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 594 NumberOfCodeBlocks, 564 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 623 ConstructedInterpolants, 2 QuantifiedInterpolants, 3391 SizeOfPredicates, 23 NumberOfNonLiveVariables, 423 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 26 InterpolantComputations, 14 PerfectInterpolantSequences, 1392/1725 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-13 16:40:36,267 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