./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/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.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:16:37,159 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:16:37,220 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:16:37,226 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:16:37,228 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:16:37,253 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:16:37,254 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:16:37,254 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:16:37,255 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:16:37,256 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:16:37,256 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:16:37,256 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:16:37,256 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:16:37,258 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:16:37,258 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:16:37,258 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:16:37,259 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:16:37,259 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:16:37,259 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:16:37,259 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:16:37,259 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:16:37,263 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:16:37,263 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:16:37,263 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:16:37,263 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:16:37,263 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:16:37,263 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:16:37,264 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:16:37,264 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:16:37,264 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:16:37,264 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:16:37,264 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:16:37,264 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:16:37,264 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:16:37,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:16:37,265 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:16:37,265 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:16:37,265 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:16:37,265 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:16:37,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:16:37,265 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:16:37,266 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:16:37,266 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:16:37,266 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:16:37,266 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e [2024-11-10 22:16:37,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:16:37,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:16:37,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:16:37,509 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:16:37,510 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:16:37,511 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2024-11-10 22:16:38,897 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:16:39,141 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:16:39,143 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2024-11-10 22:16:39,161 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20963e6a5/306f97f2a5514087a437e451db5154de/FLAG7e853780e [2024-11-10 22:16:39,175 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20963e6a5/306f97f2a5514087a437e451db5154de [2024-11-10 22:16:39,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:16:39,180 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:16:39,181 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:16:39,181 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:16:39,185 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:16:39,185 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:16:39" (1/1) ... [2024-11-10 22:16:39,186 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@94c19b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:39, skipping insertion in model container [2024-11-10 22:16:39,186 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:16:39" (1/1) ... [2024-11-10 22:16:39,224 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:16:39,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:16:39,575 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:16:39,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:16:39,647 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:16:39,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:39 WrapperNode [2024-11-10 22:16:39,648 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:16:39,648 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:16:39,649 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:16:39,649 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:16:39,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:39" (1/1) ... [2024-11-10 22:16:39,671 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:39" (1/1) ... [2024-11-10 22:16:39,696 INFO L138 Inliner]: procedures = 265, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 132 [2024-11-10 22:16:39,696 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:16:39,697 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:16:39,697 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:16:39,697 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:16:39,708 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:39" (1/1) ... [2024-11-10 22:16:39,708 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:39" (1/1) ... [2024-11-10 22:16:39,711 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:39" (1/1) ... [2024-11-10 22:16:39,735 INFO L175 MemorySlicer]: Split 64 memory accesses to 1 slices as follows [64]. 100 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [60]. The 2 writes are split as follows [2]. [2024-11-10 22:16:39,735 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:39" (1/1) ... [2024-11-10 22:16:39,735 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:39" (1/1) ... [2024-11-10 22:16:39,741 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:39" (1/1) ... [2024-11-10 22:16:39,742 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:39" (1/1) ... [2024-11-10 22:16:39,743 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:39" (1/1) ... [2024-11-10 22:16:39,744 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:39" (1/1) ... [2024-11-10 22:16:39,746 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:16:39,746 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:16:39,747 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:16:39,747 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:16:39,747 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:39" (1/1) ... [2024-11-10 22:16:39,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:16:39,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:16:39,773 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 22:16:39,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 22:16:39,820 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 22:16:39,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 22:16:39,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 22:16:39,821 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 22:16:39,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:16:39,821 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-10 22:16:39,821 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-10 22:16:39,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:16:39,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:16:39,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:16:39,822 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 22:16:39,951 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:16:39,954 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:16:40,163 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:16:40,164 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:16:40,483 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:16:40,484 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:16:40,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:16:40 BoogieIcfgContainer [2024-11-10 22:16:40,484 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:16:40,485 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:16:40,486 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:16:40,488 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:16:40,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:16:39" (1/3) ... [2024-11-10 22:16:40,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a135a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:16:40, skipping insertion in model container [2024-11-10 22:16:40,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:39" (2/3) ... [2024-11-10 22:16:40,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a135a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:16:40, skipping insertion in model container [2024-11-10 22:16:40,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:16:40" (3/3) ... [2024-11-10 22:16:40,490 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_06-tricky_address1.i [2024-11-10 22:16:40,502 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:16:40,502 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-10 22:16:40,502 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:16:40,525 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 22:16:40,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 30 transitions, 64 flow [2024-11-10 22:16:40,564 INFO L124 PetriNetUnfolderBase]: 2/29 cut-off events. [2024-11-10 22:16:40,564 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:16:40,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 29 events. 2/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 49 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 10. Up to 2 conditions per place. [2024-11-10 22:16:40,566 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 30 transitions, 64 flow [2024-11-10 22:16:40,568 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 29 transitions, 61 flow [2024-11-10 22:16:40,573 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:16:40,578 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;@d3833bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:16:40,578 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-10 22:16:40,581 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:16:40,581 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events. [2024-11-10 22:16:40,581 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:16:40,581 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:40,582 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 22:16:40,582 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:16:40,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:40,586 INFO L85 PathProgramCache]: Analyzing trace with hash 9939568, now seen corresponding path program 1 times [2024-11-10 22:16:40,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:40,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062869277] [2024-11-10 22:16:40,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:40,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:40,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:40,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:16:40,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:16:40,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062869277] [2024-11-10 22:16:40,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062869277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:16:40,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:16:40,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:16:40,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508191567] [2024-11-10 22:16:40,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:16:40,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:16:40,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:16:40,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:16:40,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:16:40,925 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-10 22:16:40,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 61 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:16:40,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:16:40,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-10 22:16:40,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:16:41,052 INFO L124 PetriNetUnfolderBase]: 37/122 cut-off events. [2024-11-10 22:16:41,053 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:16:41,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 122 events. 37/122 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 405 event pairs, 36 based on Foata normal form. 3/114 useless extension candidates. Maximal degree in co-relation 192. Up to 93 conditions per place. [2024-11-10 22:16:41,055 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 19 selfloop transitions, 3 changer transitions 0/30 dead transitions. [2024-11-10 22:16:41,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 30 transitions, 107 flow [2024-11-10 22:16:41,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:16:41,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:16:41,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 63 transitions. [2024-11-10 22:16:41,064 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.525 [2024-11-10 22:16:41,065 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 61 flow. Second operand 4 states and 63 transitions. [2024-11-10 22:16:41,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 30 transitions, 107 flow [2024-11-10 22:16:41,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 30 transitions, 106 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:16:41,070 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 82 flow [2024-11-10 22:16:41,071 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=82, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2024-11-10 22:16:41,074 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2024-11-10 22:16:41,075 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 82 flow [2024-11-10 22:16:41,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:16:41,076 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:41,076 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-10 22:16:41,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:16:41,076 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:16:41,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:41,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1062461992, now seen corresponding path program 1 times [2024-11-10 22:16:41,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:41,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097082759] [2024-11-10 22:16:41,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:41,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:41,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:41,190 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:16:41,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:16:41,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097082759] [2024-11-10 22:16:41,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097082759] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:16:41,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233497849] [2024-11-10 22:16:41,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:41,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:16:41,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:16:41,197 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) [2024-11-10 22:16:41,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 22:16:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:41,276 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:16:41,283 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:16:41,334 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:16:41,334 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:16:41,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233497849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:16:41,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:16:41,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-10 22:16:41,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802923348] [2024-11-10 22:16:41,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:16:41,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:16:41,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:16:41,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:16:41,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:16:41,347 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-10 22:16:41,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 82 flow. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:16:41,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:16:41,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-10 22:16:41,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:16:41,436 INFO L124 PetriNetUnfolderBase]: 37/121 cut-off events. [2024-11-10 22:16:41,437 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 22:16:41,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 121 events. 37/121 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 401 event pairs, 36 based on Foata normal form. 1/111 useless extension candidates. Maximal degree in co-relation 212. Up to 87 conditions per place. [2024-11-10 22:16:41,439 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 15 selfloop transitions, 6 changer transitions 0/29 dead transitions. [2024-11-10 22:16:41,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 29 transitions, 120 flow [2024-11-10 22:16:41,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:16:41,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:16:41,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 76 transitions. [2024-11-10 22:16:41,441 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4222222222222222 [2024-11-10 22:16:41,441 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 82 flow. Second operand 6 states and 76 transitions. [2024-11-10 22:16:41,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 29 transitions, 120 flow [2024-11-10 22:16:41,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 29 transitions, 118 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:16:41,442 INFO L231 Difference]: Finished difference. Result has 38 places, 29 transitions, 88 flow [2024-11-10 22:16:41,442 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=88, PETRI_PLACES=38, PETRI_TRANSITIONS=29} [2024-11-10 22:16:41,442 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 7 predicate places. [2024-11-10 22:16:41,443 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 29 transitions, 88 flow [2024-11-10 22:16:41,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:16:41,443 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:41,443 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-10 22:16:41,464 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 22:16:41,647 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 [2024-11-10 22:16:41,649 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:16:41,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:41,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1423416365, now seen corresponding path program 1 times [2024-11-10 22:16:41,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:41,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395151975] [2024-11-10 22:16:41,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:41,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:41,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:41,687 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:16:41,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:16:41,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395151975] [2024-11-10 22:16:41,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395151975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:16:41,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:16:41,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:16:41,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313682674] [2024-11-10 22:16:41,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:16:41,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:16:41,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:16:41,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:16:41,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:16:41,692 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30 [2024-11-10 22:16:41,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 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) [2024-11-10 22:16:41,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:16:41,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30 [2024-11-10 22:16:41,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:16:41,759 INFO L124 PetriNetUnfolderBase]: 37/120 cut-off events. [2024-11-10 22:16:41,759 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-10 22:16:41,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 120 events. 37/120 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 399 event pairs, 36 based on Foata normal form. 1/112 useless extension candidates. Maximal degree in co-relation 207. Up to 90 conditions per place. [2024-11-10 22:16:41,760 INFO L140 encePairwiseOnDemand]: 27/30 looper letters, 15 selfloop transitions, 4 changer transitions 0/28 dead transitions. [2024-11-10 22:16:41,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 28 transitions, 122 flow [2024-11-10 22:16:41,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:16:41,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:16:41,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 48 transitions. [2024-11-10 22:16:41,761 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2024-11-10 22:16:41,761 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 88 flow. Second operand 3 states and 48 transitions. [2024-11-10 22:16:41,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 28 transitions, 122 flow [2024-11-10 22:16:41,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 28 transitions, 112 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-10 22:16:41,763 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 82 flow [2024-11-10 22:16:41,763 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2024-11-10 22:16:41,763 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2024-11-10 22:16:41,763 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 82 flow [2024-11-10 22:16:41,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 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) [2024-11-10 22:16:41,763 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:41,764 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:16:41,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 22:16:41,764 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:16:41,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:41,764 INFO L85 PathProgramCache]: Analyzing trace with hash 451623773, now seen corresponding path program 1 times [2024-11-10 22:16:41,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:41,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450170575] [2024-11-10 22:16:41,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:41,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:41,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:16:41,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:16:41,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450170575] [2024-11-10 22:16:41,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450170575] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:16:41,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316776007] [2024-11-10 22:16:41,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:41,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:16:41,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:16:41,833 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) [2024-11-10 22:16:41,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 22:16:41,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:41,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:16:41,895 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:16:41,914 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:16:41,914 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:16:41,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:16:41,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316776007] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:16:41,943 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:16:41,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-10 22:16:41,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673418882] [2024-11-10 22:16:41,944 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:16:41,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 22:16:41,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:16:41,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 22:16:41,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 22:16:41,959 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-10 22:16:41,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 82 flow. Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:16:41,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:16:41,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-10 22:16:41,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:16:42,055 INFO L124 PetriNetUnfolderBase]: 37/126 cut-off events. [2024-11-10 22:16:42,055 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-11-10 22:16:42,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 126 events. 37/126 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 396 event pairs, 36 based on Foata normal form. 2/119 useless extension candidates. Maximal degree in co-relation 202. Up to 89 conditions per place. [2024-11-10 22:16:42,057 INFO L140 encePairwiseOnDemand]: 26/30 looper letters, 16 selfloop transitions, 7 changer transitions 0/31 dead transitions. [2024-11-10 22:16:42,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 31 transitions, 150 flow [2024-11-10 22:16:42,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 22:16:42,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 22:16:42,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 88 transitions. [2024-11-10 22:16:42,058 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41904761904761906 [2024-11-10 22:16:42,058 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 82 flow. Second operand 7 states and 88 transitions. [2024-11-10 22:16:42,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 31 transitions, 150 flow [2024-11-10 22:16:42,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 31 transitions, 136 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:16:42,062 INFO L231 Difference]: Finished difference. Result has 41 places, 31 transitions, 115 flow [2024-11-10 22:16:42,062 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=115, PETRI_PLACES=41, PETRI_TRANSITIONS=31} [2024-11-10 22:16:42,062 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 10 predicate places. [2024-11-10 22:16:42,064 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 31 transitions, 115 flow [2024-11-10 22:16:42,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:16:42,065 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:42,065 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:16:42,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-10 22:16:42,265 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 [2024-11-10 22:16:42,266 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:16:42,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:42,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1673247251, now seen corresponding path program 2 times [2024-11-10 22:16:42,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:42,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516381171] [2024-11-10 22:16:42,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:42,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:42,479 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:16:42,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:16:42,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516381171] [2024-11-10 22:16:42,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516381171] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:16:42,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163084391] [2024-11-10 22:16:42,480 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 22:16:42,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:16:42,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:16:42,481 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) [2024-11-10 22:16:42,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 22:16:42,544 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 22:16:42,544 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:16:42,546 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-10 22:16:42,547 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:16:43,290 INFO L349 Elim1Store]: treesize reduction 78, result has 3.7 percent of original size [2024-11-10 22:16:43,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 56 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 10 case distinctions, treesize of input 87 treesize of output 40 [2024-11-10 22:16:43,304 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-10 22:16:43,305 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:16:43,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163084391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:16:43,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:16:43,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 11 [2024-11-10 22:16:43,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889821548] [2024-11-10 22:16:43,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:16:43,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:16:43,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:16:43,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:16:43,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-10 22:16:43,314 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30 [2024-11-10 22:16:43,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 115 flow. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:16:43,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:16:43,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30 [2024-11-10 22:16:43,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:16:43,491 INFO L124 PetriNetUnfolderBase]: 50/138 cut-off events. [2024-11-10 22:16:43,491 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-11-10 22:16:43,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 138 events. 50/138 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 401 event pairs, 10 based on Foata normal form. 7/134 useless extension candidates. Maximal degree in co-relation 241. Up to 68 conditions per place. [2024-11-10 22:16:43,492 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 34 selfloop transitions, 8 changer transitions 3/52 dead transitions. [2024-11-10 22:16:43,492 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 52 transitions, 247 flow [2024-11-10 22:16:43,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:16:43,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:16:43,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 102 transitions. [2024-11-10 22:16:43,493 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2024-11-10 22:16:43,493 INFO L175 Difference]: Start difference. First operand has 41 places, 31 transitions, 115 flow. Second operand 6 states and 102 transitions. [2024-11-10 22:16:43,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 52 transitions, 247 flow [2024-11-10 22:16:43,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 52 transitions, 239 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-10 22:16:43,495 INFO L231 Difference]: Finished difference. Result has 49 places, 36 transitions, 159 flow [2024-11-10 22:16:43,495 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=159, PETRI_PLACES=49, PETRI_TRANSITIONS=36} [2024-11-10 22:16:43,496 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 18 predicate places. [2024-11-10 22:16:43,496 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 36 transitions, 159 flow [2024-11-10 22:16:43,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:16:43,496 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:43,496 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:16:43,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-10 22:16:43,700 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 [2024-11-10 22:16:43,701 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:16:43,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:43,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1673582645, now seen corresponding path program 1 times [2024-11-10 22:16:43,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:43,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589673551] [2024-11-10 22:16:43,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:43,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:43,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:43,780 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:16:43,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:16:43,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589673551] [2024-11-10 22:16:43,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589673551] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:16:43,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951514408] [2024-11-10 22:16:43,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:43,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:16:43,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:16:43,782 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) [2024-11-10 22:16:43,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 22:16:43,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:43,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 22:16:43,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:16:43,865 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:16:43,865 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:16:43,929 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:16:43,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951514408] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:16:43,930 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:16:43,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-10 22:16:43,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202691186] [2024-11-10 22:16:43,930 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:16:43,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 22:16:43,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:16:43,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 22:16:43,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-10 22:16:43,946 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-10 22:16:43,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 36 transitions, 159 flow. Second operand has 18 states, 18 states have (on average 10.333333333333334) internal successors, (186), 18 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:16:43,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:16:43,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-10 22:16:43,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:16:44,054 INFO L124 PetriNetUnfolderBase]: 27/128 cut-off events. [2024-11-10 22:16:44,054 INFO L125 PetriNetUnfolderBase]: For 162/164 co-relation queries the response was YES. [2024-11-10 22:16:44,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 128 events. 27/128 cut-off events. For 162/164 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 346 event pairs, 23 based on Foata normal form. 4/129 useless extension candidates. Maximal degree in co-relation 292. Up to 73 conditions per place. [2024-11-10 22:16:44,055 INFO L140 encePairwiseOnDemand]: 26/30 looper letters, 20 selfloop transitions, 15 changer transitions 0/44 dead transitions. [2024-11-10 22:16:44,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 44 transitions, 293 flow [2024-11-10 22:16:44,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 22:16:44,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 22:16:44,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 170 transitions. [2024-11-10 22:16:44,057 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37777777777777777 [2024-11-10 22:16:44,057 INFO L175 Difference]: Start difference. First operand has 49 places, 36 transitions, 159 flow. Second operand 15 states and 170 transitions. [2024-11-10 22:16:44,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 44 transitions, 293 flow [2024-11-10 22:16:44,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 44 transitions, 293 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:16:44,059 INFO L231 Difference]: Finished difference. Result has 67 places, 44 transitions, 272 flow [2024-11-10 22:16:44,059 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=272, PETRI_PLACES=67, PETRI_TRANSITIONS=44} [2024-11-10 22:16:44,060 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 36 predicate places. [2024-11-10 22:16:44,060 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 44 transitions, 272 flow [2024-11-10 22:16:44,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.333333333333334) internal successors, (186), 18 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:16:44,060 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:44,060 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:16:44,074 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 22:16:44,261 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 [2024-11-10 22:16:44,262 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:16:44,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:44,262 INFO L85 PathProgramCache]: Analyzing trace with hash 2029948139, now seen corresponding path program 2 times [2024-11-10 22:16:44,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:44,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440187954] [2024-11-10 22:16:44,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:44,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:44,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:44,467 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:16:44,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:16:44,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440187954] [2024-11-10 22:16:44,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440187954] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:16:44,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646824842] [2024-11-10 22:16:44,467 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 22:16:44,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:16:44,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:16:44,470 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) [2024-11-10 22:16:44,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 22:16:44,532 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 22:16:44,532 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:16:44,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-10 22:16:44,539 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:16:45,421 INFO L349 Elim1Store]: treesize reduction 78, result has 3.7 percent of original size [2024-11-10 22:16:45,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 56 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 87 treesize of output 40 [2024-11-10 22:16:45,437 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-10 22:16:45,438 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:16:45,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [646824842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:16:45,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:16:45,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [16] total 19 [2024-11-10 22:16:45,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009976345] [2024-11-10 22:16:45,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:16:45,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:16:45,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:16:45,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:16:45,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2024-11-10 22:16:45,445 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30 [2024-11-10 22:16:45,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 44 transitions, 272 flow. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:16:45,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:16:45,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30 [2024-11-10 22:16:45,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:16:45,569 INFO L124 PetriNetUnfolderBase]: 37/147 cut-off events. [2024-11-10 22:16:45,569 INFO L125 PetriNetUnfolderBase]: For 241/242 co-relation queries the response was YES. [2024-11-10 22:16:45,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 404 conditions, 147 events. 37/147 cut-off events. For 241/242 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 435 event pairs, 12 based on Foata normal form. 7/154 useless extension candidates. Maximal degree in co-relation 362. Up to 49 conditions per place. [2024-11-10 22:16:45,570 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 39 selfloop transitions, 9 changer transitions 0/56 dead transitions. [2024-11-10 22:16:45,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 56 transitions, 404 flow [2024-11-10 22:16:45,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:16:45,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:16:45,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 95 transitions. [2024-11-10 22:16:45,571 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2024-11-10 22:16:45,571 INFO L175 Difference]: Start difference. First operand has 67 places, 44 transitions, 272 flow. Second operand 6 states and 95 transitions. [2024-11-10 22:16:45,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 56 transitions, 404 flow [2024-11-10 22:16:45,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 56 transitions, 386 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-10 22:16:45,575 INFO L231 Difference]: Finished difference. Result has 72 places, 47 transitions, 306 flow [2024-11-10 22:16:45,575 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=306, PETRI_PLACES=72, PETRI_TRANSITIONS=47} [2024-11-10 22:16:45,575 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 41 predicate places. [2024-11-10 22:16:45,575 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 47 transitions, 306 flow [2024-11-10 22:16:45,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:16:45,576 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:45,576 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:16:45,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-10 22:16:45,776 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 [2024-11-10 22:16:45,777 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:16:45,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:45,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1496116875, now seen corresponding path program 1 times [2024-11-10 22:16:45,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:45,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332204165] [2024-11-10 22:16:45,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:45,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:45,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:45,970 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:16:45,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:16:45,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332204165] [2024-11-10 22:16:45,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332204165] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:16:45,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805411054] [2024-11-10 22:16:45,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:45,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:16:45,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:16:45,974 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) [2024-11-10 22:16:45,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 22:16:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:46,041 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 22:16:46,042 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:16:46,110 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:16:46,110 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:16:46,285 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:16:46,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805411054] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:16:46,286 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:16:46,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-10 22:16:46,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605182017] [2024-11-10 22:16:46,286 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:16:46,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 22:16:46,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:16:46,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 22:16:46,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-10 22:16:46,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-10 22:16:46,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 47 transitions, 306 flow. Second operand has 23 states, 23 states have (on average 10.304347826086957) internal successors, (237), 23 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:16:46,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:16:46,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-10 22:16:46,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:16:46,486 INFO L124 PetriNetUnfolderBase]: 26/148 cut-off events. [2024-11-10 22:16:46,486 INFO L125 PetriNetUnfolderBase]: For 448/450 co-relation queries the response was YES. [2024-11-10 22:16:46,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 453 conditions, 148 events. 26/148 cut-off events. For 448/450 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 400 event pairs, 22 based on Foata normal form. 3/151 useless extension candidates. Maximal degree in co-relation 405. Up to 75 conditions per place. [2024-11-10 22:16:46,488 INFO L140 encePairwiseOnDemand]: 26/30 looper letters, 22 selfloop transitions, 21 changer transitions 0/53 dead transitions. [2024-11-10 22:16:46,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 53 transitions, 458 flow [2024-11-10 22:16:46,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-10 22:16:46,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-10 22:16:46,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 229 transitions. [2024-11-10 22:16:46,492 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3634920634920635 [2024-11-10 22:16:46,492 INFO L175 Difference]: Start difference. First operand has 72 places, 47 transitions, 306 flow. Second operand 21 states and 229 transitions. [2024-11-10 22:16:46,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 53 transitions, 458 flow [2024-11-10 22:16:46,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 53 transitions, 456 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:16:46,495 INFO L231 Difference]: Finished difference. Result has 94 places, 53 transitions, 427 flow [2024-11-10 22:16:46,498 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=427, PETRI_PLACES=94, PETRI_TRANSITIONS=53} [2024-11-10 22:16:46,498 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 63 predicate places. [2024-11-10 22:16:46,498 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 53 transitions, 427 flow [2024-11-10 22:16:46,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.304347826086957) internal successors, (237), 23 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:16:46,498 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:46,499 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:16:46,515 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-10 22:16:46,699 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 [2024-11-10 22:16:46,700 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:16:46,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:46,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1666770275, now seen corresponding path program 2 times [2024-11-10 22:16:46,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:46,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950467142] [2024-11-10 22:16:46,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:46,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:47,751 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:16:47,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:16:47,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950467142] [2024-11-10 22:16:47,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950467142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:16:47,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:16:47,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:16:47,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540077228] [2024-11-10 22:16:47,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:16:47,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:16:47,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:16:47,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:16:47,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:16:47,760 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30 [2024-11-10 22:16:47,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 53 transitions, 427 flow. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:16:47,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:16:47,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30 [2024-11-10 22:16:47,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:16:47,925 INFO L124 PetriNetUnfolderBase]: 30/148 cut-off events. [2024-11-10 22:16:47,925 INFO L125 PetriNetUnfolderBase]: For 515/517 co-relation queries the response was YES. [2024-11-10 22:16:47,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 489 conditions, 148 events. 30/148 cut-off events. For 515/517 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 376 event pairs, 14 based on Foata normal form. 9/157 useless extension candidates. Maximal degree in co-relation 437. Up to 54 conditions per place. [2024-11-10 22:16:47,926 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 42 selfloop transitions, 7 changer transitions 3/60 dead transitions. [2024-11-10 22:16:47,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 60 transitions, 551 flow [2024-11-10 22:16:47,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:16:47,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:16:47,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 93 transitions. [2024-11-10 22:16:47,927 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5166666666666667 [2024-11-10 22:16:47,927 INFO L175 Difference]: Start difference. First operand has 94 places, 53 transitions, 427 flow. Second operand 6 states and 93 transitions. [2024-11-10 22:16:47,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 60 transitions, 551 flow [2024-11-10 22:16:47,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 60 transitions, 496 flow, removed 4 selfloop flow, removed 14 redundant places. [2024-11-10 22:16:47,931 INFO L231 Difference]: Finished difference. Result has 85 places, 51 transitions, 372 flow [2024-11-10 22:16:47,931 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=372, PETRI_PLACES=85, PETRI_TRANSITIONS=51} [2024-11-10 22:16:47,931 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 54 predicate places. [2024-11-10 22:16:47,931 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 51 transitions, 372 flow [2024-11-10 22:16:47,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:16:47,932 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:47,932 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:16:47,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 22:16:47,932 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:16:47,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:47,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1656373036, now seen corresponding path program 1 times [2024-11-10 22:16:47,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:47,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405277913] [2024-11-10 22:16:47,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:47,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:48,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:48,569 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:16:48,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:16:48,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405277913] [2024-11-10 22:16:48,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405277913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:16:48,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:16:48,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:16:48,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50911278] [2024-11-10 22:16:48,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:16:48,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:16:48,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:16:48,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:16:48,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:16:48,581 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30 [2024-11-10 22:16:48,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 51 transitions, 372 flow. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:16:48,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:16:48,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30 [2024-11-10 22:16:48,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:16:48,730 INFO L124 PetriNetUnfolderBase]: 30/140 cut-off events. [2024-11-10 22:16:48,731 INFO L125 PetriNetUnfolderBase]: For 403/405 co-relation queries the response was YES. [2024-11-10 22:16:48,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 456 conditions, 140 events. 30/140 cut-off events. For 403/405 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 317 event pairs, 8 based on Foata normal form. 9/149 useless extension candidates. Maximal degree in co-relation 417. Up to 51 conditions per place. [2024-11-10 22:16:48,732 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 44 selfloop transitions, 6 changer transitions 4/61 dead transitions. [2024-11-10 22:16:48,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 61 transitions, 510 flow [2024-11-10 22:16:48,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:16:48,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:16:48,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 97 transitions. [2024-11-10 22:16:48,733 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5388888888888889 [2024-11-10 22:16:48,733 INFO L175 Difference]: Start difference. First operand has 85 places, 51 transitions, 372 flow. Second operand 6 states and 97 transitions. [2024-11-10 22:16:48,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 61 transitions, 510 flow [2024-11-10 22:16:48,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 61 transitions, 484 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-11-10 22:16:48,736 INFO L231 Difference]: Finished difference. Result has 83 places, 49 transitions, 349 flow [2024-11-10 22:16:48,737 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=78, 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=6, PETRI_FLOW=349, PETRI_PLACES=83, PETRI_TRANSITIONS=49} [2024-11-10 22:16:48,737 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 52 predicate places. [2024-11-10 22:16:48,737 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 49 transitions, 349 flow [2024-11-10 22:16:48,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:16:48,738 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:48,738 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:16:48,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 22:16:48,738 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:16:48,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:48,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1833904097, now seen corresponding path program 1 times [2024-11-10 22:16:48,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:48,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362386703] [2024-11-10 22:16:48,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:48,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:48,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:51,452 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:16:51,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:16:51,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362386703] [2024-11-10 22:16:51,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362386703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:16:51,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:16:51,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 22:16:51,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277663394] [2024-11-10 22:16:51,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:16:51,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 22:16:51,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:16:51,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 22:16:51,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-10 22:16:51,471 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-10 22:16:51,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 49 transitions, 349 flow. Second operand has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:16:51,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:16:51,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-10 22:16:51,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:16:52,900 INFO L124 PetriNetUnfolderBase]: 58/196 cut-off events. [2024-11-10 22:16:52,900 INFO L125 PetriNetUnfolderBase]: For 394/394 co-relation queries the response was YES. [2024-11-10 22:16:52,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 629 conditions, 196 events. 58/196 cut-off events. For 394/394 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 575 event pairs, 12 based on Foata normal form. 3/199 useless extension candidates. Maximal degree in co-relation 564. Up to 39 conditions per place. [2024-11-10 22:16:52,901 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 61 selfloop transitions, 21 changer transitions 6/91 dead transitions. [2024-11-10 22:16:52,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 91 transitions, 698 flow [2024-11-10 22:16:52,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-10 22:16:52,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-10 22:16:52,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 166 transitions. [2024-11-10 22:16:52,903 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3458333333333333 [2024-11-10 22:16:52,903 INFO L175 Difference]: Start difference. First operand has 83 places, 49 transitions, 349 flow. Second operand 16 states and 166 transitions. [2024-11-10 22:16:52,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 91 transitions, 698 flow [2024-11-10 22:16:52,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 91 transitions, 664 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-10 22:16:52,906 INFO L231 Difference]: Finished difference. Result has 98 places, 64 transitions, 485 flow [2024-11-10 22:16:52,906 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=485, PETRI_PLACES=98, PETRI_TRANSITIONS=64} [2024-11-10 22:16:52,907 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 67 predicate places. [2024-11-10 22:16:52,907 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 64 transitions, 485 flow [2024-11-10 22:16:52,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:16:52,907 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:52,907 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:16:52,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 22:16:52,907 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:16:52,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:52,908 INFO L85 PathProgramCache]: Analyzing trace with hash 61690337, now seen corresponding path program 2 times [2024-11-10 22:16:52,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:52,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915413249] [2024-11-10 22:16:52,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:52,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:52,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:54,389 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:16:54,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:16:54,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915413249] [2024-11-10 22:16:54,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915413249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:16:54,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:16:54,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 22:16:54,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068924258] [2024-11-10 22:16:54,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:16:54,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 22:16:54,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:16:54,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 22:16:54,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:16:54,413 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-10 22:16:54,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 64 transitions, 485 flow. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:16:54,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:16:54,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-10 22:16:54,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:16:55,348 INFO L124 PetriNetUnfolderBase]: 64/219 cut-off events. [2024-11-10 22:16:55,348 INFO L125 PetriNetUnfolderBase]: For 477/477 co-relation queries the response was YES. [2024-11-10 22:16:55,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 788 conditions, 219 events. 64/219 cut-off events. For 477/477 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 718 event pairs, 14 based on Foata normal form. 3/222 useless extension candidates. Maximal degree in co-relation 700. Up to 50 conditions per place. [2024-11-10 22:16:55,350 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 62 selfloop transitions, 21 changer transitions 5/91 dead transitions. [2024-11-10 22:16:55,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 91 transitions, 792 flow [2024-11-10 22:16:55,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 22:16:55,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 22:16:55,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 115 transitions. [2024-11-10 22:16:55,351 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38333333333333336 [2024-11-10 22:16:55,351 INFO L175 Difference]: Start difference. First operand has 98 places, 64 transitions, 485 flow. Second operand 10 states and 115 transitions. [2024-11-10 22:16:55,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 91 transitions, 792 flow [2024-11-10 22:16:55,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 91 transitions, 765 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-10 22:16:55,354 INFO L231 Difference]: Finished difference. Result has 108 places, 69 transitions, 586 flow [2024-11-10 22:16:55,354 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=586, PETRI_PLACES=108, PETRI_TRANSITIONS=69} [2024-11-10 22:16:55,355 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 77 predicate places. [2024-11-10 22:16:55,355 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 69 transitions, 586 flow [2024-11-10 22:16:55,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:16:55,355 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:55,355 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:16:55,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 22:16:55,356 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:16:55,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:55,356 INFO L85 PathProgramCache]: Analyzing trace with hash 90491502, now seen corresponding path program 1 times [2024-11-10 22:16:55,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:55,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540652247] [2024-11-10 22:16:55,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:55,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:58,288 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:16:58,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:16:58,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540652247] [2024-11-10 22:16:58,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540652247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:16:58,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:16:58,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 22:16:58,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482225000] [2024-11-10 22:16:58,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:16:58,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 22:16:58,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:16:58,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 22:16:58,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-10 22:16:58,327 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 30 [2024-11-10 22:16:58,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 69 transitions, 586 flow. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:16:58,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:16:58,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 30 [2024-11-10 22:16:58,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:16:59,579 INFO L124 PetriNetUnfolderBase]: 63/230 cut-off events. [2024-11-10 22:16:59,579 INFO L125 PetriNetUnfolderBase]: For 678/678 co-relation queries the response was YES. [2024-11-10 22:16:59,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 887 conditions, 230 events. 63/230 cut-off events. For 678/678 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 813 event pairs, 24 based on Foata normal form. 3/233 useless extension candidates. Maximal degree in co-relation 788. Up to 106 conditions per place. [2024-11-10 22:16:59,581 INFO L140 encePairwiseOnDemand]: 18/30 looper letters, 55 selfloop transitions, 33 changer transitions 7/101 dead transitions. [2024-11-10 22:16:59,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 101 transitions, 937 flow [2024-11-10 22:16:59,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-10 22:16:59,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-10 22:16:59,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 190 transitions. [2024-11-10 22:16:59,583 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35185185185185186 [2024-11-10 22:16:59,583 INFO L175 Difference]: Start difference. First operand has 108 places, 69 transitions, 586 flow. Second operand 18 states and 190 transitions. [2024-11-10 22:16:59,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 101 transitions, 937 flow [2024-11-10 22:16:59,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 101 transitions, 914 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-10 22:16:59,588 INFO L231 Difference]: Finished difference. Result has 126 places, 83 transitions, 750 flow [2024-11-10 22:16:59,588 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=567, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=750, PETRI_PLACES=126, PETRI_TRANSITIONS=83} [2024-11-10 22:16:59,589 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 95 predicate places. [2024-11-10 22:16:59,589 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 83 transitions, 750 flow [2024-11-10 22:16:59,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:16:59,589 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:59,589 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:16:59,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 22:16:59,590 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:16:59,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:59,590 INFO L85 PathProgramCache]: Analyzing trace with hash 320180112, now seen corresponding path program 2 times [2024-11-10 22:16:59,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:59,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484056241] [2024-11-10 22:16:59,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:59,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:02,635 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:17:02,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:02,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484056241] [2024-11-10 22:17:02,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484056241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:02,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:02,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 22:17:02,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077671255] [2024-11-10 22:17:02,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:02,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 22:17:02,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:02,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 22:17:02,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-10 22:17:02,710 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 30 [2024-11-10 22:17:02,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 83 transitions, 750 flow. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:02,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:02,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 30 [2024-11-10 22:17:02,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:03,872 INFO L124 PetriNetUnfolderBase]: 64/243 cut-off events. [2024-11-10 22:17:03,872 INFO L125 PetriNetUnfolderBase]: For 834/834 co-relation queries the response was YES. [2024-11-10 22:17:03,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1016 conditions, 243 events. 64/243 cut-off events. For 834/834 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 932 event pairs, 26 based on Foata normal form. 3/246 useless extension candidates. Maximal degree in co-relation 914. Up to 114 conditions per place. [2024-11-10 22:17:03,874 INFO L140 encePairwiseOnDemand]: 18/30 looper letters, 58 selfloop transitions, 35 changer transitions 7/106 dead transitions. [2024-11-10 22:17:03,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 106 transitions, 1074 flow [2024-11-10 22:17:03,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-10 22:17:03,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-10 22:17:03,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 186 transitions. [2024-11-10 22:17:03,875 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.34444444444444444 [2024-11-10 22:17:03,875 INFO L175 Difference]: Start difference. First operand has 126 places, 83 transitions, 750 flow. Second operand 18 states and 186 transitions. [2024-11-10 22:17:03,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 106 transitions, 1074 flow [2024-11-10 22:17:03,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 106 transitions, 1019 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-10 22:17:03,880 INFO L231 Difference]: Finished difference. Result has 142 places, 88 transitions, 863 flow [2024-11-10 22:17:03,881 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=711, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=863, PETRI_PLACES=142, PETRI_TRANSITIONS=88} [2024-11-10 22:17:03,881 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 111 predicate places. [2024-11-10 22:17:03,881 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 88 transitions, 863 flow [2024-11-10 22:17:03,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:03,881 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:03,882 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:03,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 22:17:03,882 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:03,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:03,886 INFO L85 PathProgramCache]: Analyzing trace with hash 312136542, now seen corresponding path program 3 times [2024-11-10 22:17:03,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:03,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941960655] [2024-11-10 22:17:03,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:03,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:03,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:06,912 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:17:06,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:06,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941960655] [2024-11-10 22:17:06,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941960655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:06,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:06,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 22:17:06,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641320577] [2024-11-10 22:17:06,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:06,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 22:17:06,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:06,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 22:17:06,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-10 22:17:06,962 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 30 [2024-11-10 22:17:06,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 88 transitions, 863 flow. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:06,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:06,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 30 [2024-11-10 22:17:06,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:07,902 INFO L124 PetriNetUnfolderBase]: 64/248 cut-off events. [2024-11-10 22:17:07,902 INFO L125 PetriNetUnfolderBase]: For 931/931 co-relation queries the response was YES. [2024-11-10 22:17:07,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1080 conditions, 248 events. 64/248 cut-off events. For 931/931 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 988 event pairs, 30 based on Foata normal form. 3/251 useless extension candidates. Maximal degree in co-relation 1005. Up to 121 conditions per place. [2024-11-10 22:17:07,904 INFO L140 encePairwiseOnDemand]: 18/30 looper letters, 59 selfloop transitions, 36 changer transitions 0/101 dead transitions. [2024-11-10 22:17:07,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 101 transitions, 1101 flow [2024-11-10 22:17:07,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 22:17:07,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 22:17:07,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 160 transitions. [2024-11-10 22:17:07,905 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35555555555555557 [2024-11-10 22:17:07,905 INFO L175 Difference]: Start difference. First operand has 142 places, 88 transitions, 863 flow. Second operand 15 states and 160 transitions. [2024-11-10 22:17:07,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 101 transitions, 1101 flow [2024-11-10 22:17:07,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 101 transitions, 1033 flow, removed 7 selfloop flow, removed 9 redundant places. [2024-11-10 22:17:07,911 INFO L231 Difference]: Finished difference. Result has 148 places, 91 transitions, 926 flow [2024-11-10 22:17:07,911 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=798, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=926, PETRI_PLACES=148, PETRI_TRANSITIONS=91} [2024-11-10 22:17:07,911 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 117 predicate places. [2024-11-10 22:17:07,912 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 91 transitions, 926 flow [2024-11-10 22:17:07,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:07,912 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:07,912 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:07,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 22:17:07,912 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:07,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:07,913 INFO L85 PathProgramCache]: Analyzing trace with hash 320526072, now seen corresponding path program 4 times [2024-11-10 22:17:07,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:07,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825631865] [2024-11-10 22:17:07,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:07,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:07,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:10,038 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:17:10,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:10,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825631865] [2024-11-10 22:17:10,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825631865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:10,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:10,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 22:17:10,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10535934] [2024-11-10 22:17:10,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:10,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 22:17:10,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:10,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 22:17:10,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-10 22:17:10,055 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-10 22:17:10,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 91 transitions, 926 flow. Second operand has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:10,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:10,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-10 22:17:10,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:10,754 INFO L124 PetriNetUnfolderBase]: 78/274 cut-off events. [2024-11-10 22:17:10,754 INFO L125 PetriNetUnfolderBase]: For 996/996 co-relation queries the response was YES. [2024-11-10 22:17:10,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1205 conditions, 274 events. 78/274 cut-off events. For 996/996 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1139 event pairs, 23 based on Foata normal form. 3/277 useless extension candidates. Maximal degree in co-relation 1082. Up to 116 conditions per place. [2024-11-10 22:17:10,756 INFO L140 encePairwiseOnDemand]: 18/30 looper letters, 80 selfloop transitions, 35 changer transitions 0/118 dead transitions. [2024-11-10 22:17:10,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 118 transitions, 1318 flow [2024-11-10 22:17:10,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 22:17:10,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 22:17:10,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 153 transitions. [2024-11-10 22:17:10,758 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.34 [2024-11-10 22:17:10,758 INFO L175 Difference]: Start difference. First operand has 148 places, 91 transitions, 926 flow. Second operand 15 states and 153 transitions. [2024-11-10 22:17:10,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 118 transitions, 1318 flow [2024-11-10 22:17:10,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 118 transitions, 1254 flow, removed 7 selfloop flow, removed 9 redundant places. [2024-11-10 22:17:10,764 INFO L231 Difference]: Finished difference. Result has 158 places, 97 transitions, 1006 flow [2024-11-10 22:17:10,764 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=868, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1006, PETRI_PLACES=158, PETRI_TRANSITIONS=97} [2024-11-10 22:17:10,765 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 127 predicate places. [2024-11-10 22:17:10,765 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 97 transitions, 1006 flow [2024-11-10 22:17:10,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:10,765 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:10,765 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:10,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 22:17:10,765 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:10,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:10,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1831431756, now seen corresponding path program 5 times [2024-11-10 22:17:10,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:10,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098695039] [2024-11-10 22:17:10,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:10,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:10,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:13,605 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:17:13,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:13,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098695039] [2024-11-10 22:17:13,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098695039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:13,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:13,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 22:17:13,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108481579] [2024-11-10 22:17:13,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:13,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 22:17:13,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:13,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 22:17:13,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-10 22:17:13,664 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-10 22:17:13,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 97 transitions, 1006 flow. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:13,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:13,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-10 22:17:13,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:14,871 INFO L124 PetriNetUnfolderBase]: 65/268 cut-off events. [2024-11-10 22:17:14,872 INFO L125 PetriNetUnfolderBase]: For 1343/1343 co-relation queries the response was YES. [2024-11-10 22:17:14,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1280 conditions, 268 events. 65/268 cut-off events. For 1343/1343 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1186 event pairs, 29 based on Foata normal form. 3/271 useless extension candidates. Maximal degree in co-relation 1151. Up to 120 conditions per place. [2024-11-10 22:17:14,874 INFO L140 encePairwiseOnDemand]: 19/30 looper letters, 60 selfloop transitions, 35 changer transitions 0/109 dead transitions. [2024-11-10 22:17:14,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 109 transitions, 1265 flow [2024-11-10 22:17:14,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 22:17:14,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-10 22:17:14,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 162 transitions. [2024-11-10 22:17:14,875 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38571428571428573 [2024-11-10 22:17:14,875 INFO L175 Difference]: Start difference. First operand has 158 places, 97 transitions, 1006 flow. Second operand 14 states and 162 transitions. [2024-11-10 22:17:14,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 109 transitions, 1265 flow [2024-11-10 22:17:14,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 109 transitions, 1201 flow, removed 9 selfloop flow, removed 8 redundant places. [2024-11-10 22:17:14,881 INFO L231 Difference]: Finished difference. Result has 166 places, 100 transitions, 1071 flow [2024-11-10 22:17:14,881 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=944, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1071, PETRI_PLACES=166, PETRI_TRANSITIONS=100} [2024-11-10 22:17:14,882 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 135 predicate places. [2024-11-10 22:17:14,882 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 100 transitions, 1071 flow [2024-11-10 22:17:14,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:14,882 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:14,882 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:14,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 22:17:14,882 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:14,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:14,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1775811647, now seen corresponding path program 3 times [2024-11-10 22:17:14,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:14,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580315758] [2024-11-10 22:17:14,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:14,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:14,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:16,563 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:17:16,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:16,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580315758] [2024-11-10 22:17:16,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580315758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:16,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:16,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 22:17:16,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667707273] [2024-11-10 22:17:16,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:16,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 22:17:16,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:16,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 22:17:16,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-10 22:17:16,620 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-10 22:17:16,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 100 transitions, 1071 flow. Second operand has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:16,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:16,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-10 22:17:16,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:17,423 INFO L124 PetriNetUnfolderBase]: 86/304 cut-off events. [2024-11-10 22:17:17,424 INFO L125 PetriNetUnfolderBase]: For 1303/1303 co-relation queries the response was YES. [2024-11-10 22:17:17,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1430 conditions, 304 events. 86/304 cut-off events. For 1303/1303 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1361 event pairs, 37 based on Foata normal form. 3/307 useless extension candidates. Maximal degree in co-relation 1291. Up to 137 conditions per place. [2024-11-10 22:17:17,426 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 82 selfloop transitions, 34 changer transitions 0/119 dead transitions. [2024-11-10 22:17:17,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 119 transitions, 1400 flow [2024-11-10 22:17:17,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 22:17:17,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 22:17:17,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 149 transitions. [2024-11-10 22:17:17,427 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.33111111111111113 [2024-11-10 22:17:17,427 INFO L175 Difference]: Start difference. First operand has 166 places, 100 transitions, 1071 flow. Second operand 15 states and 149 transitions. [2024-11-10 22:17:17,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 119 transitions, 1400 flow [2024-11-10 22:17:17,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 119 transitions, 1369 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-10 22:17:17,434 INFO L231 Difference]: Finished difference. Result has 181 places, 105 transitions, 1195 flow [2024-11-10 22:17:17,434 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=1046, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1195, PETRI_PLACES=181, PETRI_TRANSITIONS=105} [2024-11-10 22:17:17,435 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 150 predicate places. [2024-11-10 22:17:17,435 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 105 transitions, 1195 flow [2024-11-10 22:17:17,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:17,435 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:17,435 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:17,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 22:17:17,435 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:17,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:17,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1758254177, now seen corresponding path program 4 times [2024-11-10 22:17:17,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:17,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973054802] [2024-11-10 22:17:17,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:17,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:18,452 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:17:18,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:18,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973054802] [2024-11-10 22:17:18,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973054802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:18,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:18,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 22:17:18,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845135489] [2024-11-10 22:17:18,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:18,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 22:17:18,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:18,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 22:17:18,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-10 22:17:18,475 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-10 22:17:18,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 105 transitions, 1195 flow. Second operand has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:18,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:18,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-10 22:17:18,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:18,988 INFO L124 PetriNetUnfolderBase]: 87/312 cut-off events. [2024-11-10 22:17:18,988 INFO L125 PetriNetUnfolderBase]: For 1558/1558 co-relation queries the response was YES. [2024-11-10 22:17:18,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1524 conditions, 312 events. 87/312 cut-off events. For 1558/1558 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1428 event pairs, 31 based on Foata normal form. 3/315 useless extension candidates. Maximal degree in co-relation 1380. Up to 130 conditions per place. [2024-11-10 22:17:18,991 INFO L140 encePairwiseOnDemand]: 19/30 looper letters, 86 selfloop transitions, 44 changer transitions 0/133 dead transitions. [2024-11-10 22:17:18,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 133 transitions, 1617 flow [2024-11-10 22:17:18,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-10 22:17:18,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-10 22:17:18,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 165 transitions. [2024-11-10 22:17:18,992 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3235294117647059 [2024-11-10 22:17:18,992 INFO L175 Difference]: Start difference. First operand has 181 places, 105 transitions, 1195 flow. Second operand 17 states and 165 transitions. [2024-11-10 22:17:18,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 133 transitions, 1617 flow [2024-11-10 22:17:18,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 133 transitions, 1551 flow, removed 10 selfloop flow, removed 8 redundant places. [2024-11-10 22:17:19,000 INFO L231 Difference]: Finished difference. Result has 194 places, 116 transitions, 1325 flow [2024-11-10 22:17:19,001 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=1137, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1325, PETRI_PLACES=194, PETRI_TRANSITIONS=116} [2024-11-10 22:17:19,001 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 163 predicate places. [2024-11-10 22:17:19,001 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 116 transitions, 1325 flow [2024-11-10 22:17:19,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:19,001 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:19,001 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:19,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 22:17:19,002 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:19,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:19,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1346782464, now seen corresponding path program 1 times [2024-11-10 22:17:19,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:19,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838483508] [2024-11-10 22:17:19,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:19,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:21,457 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:17:21,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:21,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838483508] [2024-11-10 22:17:21,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838483508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:21,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:21,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 22:17:21,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896616014] [2024-11-10 22:17:21,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:21,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 22:17:21,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:21,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 22:17:21,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-10 22:17:21,488 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-10 22:17:21,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 116 transitions, 1325 flow. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:21,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:21,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-10 22:17:21,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:22,011 INFO L124 PetriNetUnfolderBase]: 86/309 cut-off events. [2024-11-10 22:17:22,012 INFO L125 PetriNetUnfolderBase]: For 1652/1652 co-relation queries the response was YES. [2024-11-10 22:17:22,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1585 conditions, 309 events. 86/309 cut-off events. For 1652/1652 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1441 event pairs, 1 based on Foata normal form. 2/311 useless extension candidates. Maximal degree in co-relation 1455. Up to 84 conditions per place. [2024-11-10 22:17:22,014 INFO L140 encePairwiseOnDemand]: 21/30 looper letters, 98 selfloop transitions, 34 changer transitions 0/135 dead transitions. [2024-11-10 22:17:22,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 135 transitions, 1728 flow [2024-11-10 22:17:22,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-10 22:17:22,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-10 22:17:22,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 114 transitions. [2024-11-10 22:17:22,015 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.34545454545454546 [2024-11-10 22:17:22,015 INFO L175 Difference]: Start difference. First operand has 194 places, 116 transitions, 1325 flow. Second operand 11 states and 114 transitions. [2024-11-10 22:17:22,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 135 transitions, 1728 flow [2024-11-10 22:17:22,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 135 transitions, 1622 flow, removed 9 selfloop flow, removed 16 redundant places. [2024-11-10 22:17:22,024 INFO L231 Difference]: Finished difference. Result has 187 places, 115 transitions, 1279 flow [2024-11-10 22:17:22,024 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=1211, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1279, PETRI_PLACES=187, PETRI_TRANSITIONS=115} [2024-11-10 22:17:22,024 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 156 predicate places. [2024-11-10 22:17:22,024 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 115 transitions, 1279 flow [2024-11-10 22:17:22,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:22,025 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:22,025 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:22,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-10 22:17:22,025 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:22,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:22,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1346373896, now seen corresponding path program 1 times [2024-11-10 22:17:22,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:22,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885063268] [2024-11-10 22:17:22,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:22,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:22,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:24,485 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:17:24,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:24,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885063268] [2024-11-10 22:17:24,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885063268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:24,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:24,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 22:17:24,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441568652] [2024-11-10 22:17:24,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:24,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 22:17:24,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:24,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 22:17:24,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-10 22:17:24,538 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-10 22:17:24,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 115 transitions, 1279 flow. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:24,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:24,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-10 22:17:24,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:25,534 INFO L124 PetriNetUnfolderBase]: 67/283 cut-off events. [2024-11-10 22:17:25,534 INFO L125 PetriNetUnfolderBase]: For 1763/1763 co-relation queries the response was YES. [2024-11-10 22:17:25,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1456 conditions, 283 events. 67/283 cut-off events. For 1763/1763 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1365 event pairs, 21 based on Foata normal form. 3/282 useless extension candidates. Maximal degree in co-relation 1301. Up to 146 conditions per place. [2024-11-10 22:17:25,536 INFO L140 encePairwiseOnDemand]: 19/30 looper letters, 74 selfloop transitions, 34 changer transitions 7/131 dead transitions. [2024-11-10 22:17:25,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 131 transitions, 1611 flow [2024-11-10 22:17:25,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 22:17:25,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-10 22:17:25,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 154 transitions. [2024-11-10 22:17:25,538 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39487179487179486 [2024-11-10 22:17:25,538 INFO L175 Difference]: Start difference. First operand has 187 places, 115 transitions, 1279 flow. Second operand 13 states and 154 transitions. [2024-11-10 22:17:25,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 131 transitions, 1611 flow [2024-11-10 22:17:25,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 131 transitions, 1547 flow, removed 1 selfloop flow, removed 9 redundant places. [2024-11-10 22:17:25,545 INFO L231 Difference]: Finished difference. Result has 191 places, 111 transitions, 1254 flow [2024-11-10 22:17:25,545 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=1215, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1254, PETRI_PLACES=191, PETRI_TRANSITIONS=111} [2024-11-10 22:17:25,546 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 160 predicate places. [2024-11-10 22:17:25,546 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 111 transitions, 1254 flow [2024-11-10 22:17:25,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:25,546 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:25,546 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:25,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-10 22:17:25,546 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:25,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:25,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1335649136, now seen corresponding path program 2 times [2024-11-10 22:17:25,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:25,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772338632] [2024-11-10 22:17:25,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:25,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:25,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:28,549 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:17:28,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:28,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772338632] [2024-11-10 22:17:28,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772338632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:28,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:28,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 22:17:28,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694120995] [2024-11-10 22:17:28,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:28,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 22:17:28,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:28,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 22:17:28,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-10 22:17:28,604 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-10 22:17:28,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 111 transitions, 1254 flow. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:28,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:28,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-10 22:17:28,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:29,655 INFO L124 PetriNetUnfolderBase]: 60/265 cut-off events. [2024-11-10 22:17:29,655 INFO L125 PetriNetUnfolderBase]: For 1729/1729 co-relation queries the response was YES. [2024-11-10 22:17:29,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1340 conditions, 265 events. 60/265 cut-off events. For 1729/1729 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1204 event pairs, 23 based on Foata normal form. 6/271 useless extension candidates. Maximal degree in co-relation 1262. Up to 133 conditions per place. [2024-11-10 22:17:29,658 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 61 selfloop transitions, 30 changer transitions 12/118 dead transitions. [2024-11-10 22:17:29,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 118 transitions, 1465 flow [2024-11-10 22:17:29,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 22:17:29,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-10 22:17:29,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 151 transitions. [2024-11-10 22:17:29,659 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3871794871794872 [2024-11-10 22:17:29,659 INFO L175 Difference]: Start difference. First operand has 191 places, 111 transitions, 1254 flow. Second operand 13 states and 151 transitions. [2024-11-10 22:17:29,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 118 transitions, 1465 flow [2024-11-10 22:17:29,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 118 transitions, 1314 flow, removed 2 selfloop flow, removed 19 redundant places. [2024-11-10 22:17:29,666 INFO L231 Difference]: Finished difference. Result has 180 places, 102 transitions, 1051 flow [2024-11-10 22:17:29,667 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=1087, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1051, PETRI_PLACES=180, PETRI_TRANSITIONS=102} [2024-11-10 22:17:29,667 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 149 predicate places. [2024-11-10 22:17:29,667 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 102 transitions, 1051 flow [2024-11-10 22:17:29,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:29,667 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:29,668 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:29,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-10 22:17:29,668 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:29,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:29,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1489730478, now seen corresponding path program 3 times [2024-11-10 22:17:29,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:29,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324464266] [2024-11-10 22:17:29,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:29,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:29,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:32,277 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:17:32,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:32,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324464266] [2024-11-10 22:17:32,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324464266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:32,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:32,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 22:17:32,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849622080] [2024-11-10 22:17:32,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:32,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 22:17:32,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:32,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 22:17:32,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-10 22:17:32,327 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-10 22:17:32,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 102 transitions, 1051 flow. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:32,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:32,327 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-10 22:17:32,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:33,432 INFO L124 PetriNetUnfolderBase]: 52/233 cut-off events. [2024-11-10 22:17:33,432 INFO L125 PetriNetUnfolderBase]: For 1128/1128 co-relation queries the response was YES. [2024-11-10 22:17:33,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1110 conditions, 233 events. 52/233 cut-off events. For 1128/1128 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 943 event pairs, 20 based on Foata normal form. 3/236 useless extension candidates. Maximal degree in co-relation 1023. Up to 119 conditions per place. [2024-11-10 22:17:33,434 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 57 selfloop transitions, 29 changer transitions 9/109 dead transitions. [2024-11-10 22:17:33,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 109 transitions, 1248 flow [2024-11-10 22:17:33,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 22:17:33,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-10 22:17:33,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 160 transitions. [2024-11-10 22:17:33,435 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38095238095238093 [2024-11-10 22:17:33,435 INFO L175 Difference]: Start difference. First operand has 180 places, 102 transitions, 1051 flow. Second operand 14 states and 160 transitions. [2024-11-10 22:17:33,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 109 transitions, 1248 flow [2024-11-10 22:17:33,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 109 transitions, 1136 flow, removed 3 selfloop flow, removed 16 redundant places. [2024-11-10 22:17:33,440 INFO L231 Difference]: Finished difference. Result has 167 places, 97 transitions, 939 flow [2024-11-10 22:17:33,441 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=927, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=939, PETRI_PLACES=167, PETRI_TRANSITIONS=97} [2024-11-10 22:17:33,441 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 136 predicate places. [2024-11-10 22:17:33,441 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 97 transitions, 939 flow [2024-11-10 22:17:33,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:33,441 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:33,441 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:33,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-10 22:17:33,442 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:33,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:33,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1912400728, now seen corresponding path program 1 times [2024-11-10 22:17:33,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:33,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088733091] [2024-11-10 22:17:33,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:33,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:33,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:34,908 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:17:34,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:34,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088733091] [2024-11-10 22:17:34,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088733091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:34,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:34,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 22:17:34,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370152744] [2024-11-10 22:17:34,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:34,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 22:17:34,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:34,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 22:17:34,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 22:17:34,942 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-10 22:17:34,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 97 transitions, 939 flow. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:34,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:34,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-10 22:17:34,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:35,930 INFO L124 PetriNetUnfolderBase]: 55/251 cut-off events. [2024-11-10 22:17:35,931 INFO L125 PetriNetUnfolderBase]: For 1072/1072 co-relation queries the response was YES. [2024-11-10 22:17:35,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1170 conditions, 251 events. 55/251 cut-off events. For 1072/1072 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1093 event pairs, 19 based on Foata normal form. 6/257 useless extension candidates. Maximal degree in co-relation 1095. Up to 114 conditions per place. [2024-11-10 22:17:35,932 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 61 selfloop transitions, 16 changer transitions 23/114 dead transitions. [2024-11-10 22:17:35,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 114 transitions, 1292 flow [2024-11-10 22:17:35,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 22:17:35,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 22:17:35,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 113 transitions. [2024-11-10 22:17:35,933 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4185185185185185 [2024-11-10 22:17:35,933 INFO L175 Difference]: Start difference. First operand has 167 places, 97 transitions, 939 flow. Second operand 9 states and 113 transitions. [2024-11-10 22:17:35,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 114 transitions, 1292 flow [2024-11-10 22:17:35,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 114 transitions, 1222 flow, removed 2 selfloop flow, removed 12 redundant places. [2024-11-10 22:17:35,939 INFO L231 Difference]: Finished difference. Result has 158 places, 87 transitions, 832 flow [2024-11-10 22:17:35,940 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=877, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=832, PETRI_PLACES=158, PETRI_TRANSITIONS=87} [2024-11-10 22:17:35,940 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 127 predicate places. [2024-11-10 22:17:35,940 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 87 transitions, 832 flow [2024-11-10 22:17:35,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:35,940 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:35,941 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:35,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-10 22:17:35,942 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:35,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:35,943 INFO L85 PathProgramCache]: Analyzing trace with hash 933335550, now seen corresponding path program 2 times [2024-11-10 22:17:35,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:35,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644920136] [2024-11-10 22:17:35,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:35,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:35,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:38,125 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:17:38,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:38,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644920136] [2024-11-10 22:17:38,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644920136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:38,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:38,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 22:17:38,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550943768] [2024-11-10 22:17:38,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:38,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 22:17:38,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:38,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 22:17:38,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-10 22:17:38,208 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-10 22:17:38,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 87 transitions, 832 flow. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:38,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:38,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-10 22:17:38,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:39,201 INFO L124 PetriNetUnfolderBase]: 43/222 cut-off events. [2024-11-10 22:17:39,201 INFO L125 PetriNetUnfolderBase]: For 1026/1026 co-relation queries the response was YES. [2024-11-10 22:17:39,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1027 conditions, 222 events. 43/222 cut-off events. For 1026/1026 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 930 event pairs, 19 based on Foata normal form. 9/231 useless extension candidates. Maximal degree in co-relation 922. Up to 99 conditions per place. [2024-11-10 22:17:39,203 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 55 selfloop transitions, 15 changer transitions 17/99 dead transitions. [2024-11-10 22:17:39,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 99 transitions, 1076 flow [2024-11-10 22:17:39,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 22:17:39,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-10 22:17:39,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 155 transitions. [2024-11-10 22:17:39,204 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36904761904761907 [2024-11-10 22:17:39,204 INFO L175 Difference]: Start difference. First operand has 158 places, 87 transitions, 832 flow. Second operand 14 states and 155 transitions. [2024-11-10 22:17:39,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 99 transitions, 1076 flow [2024-11-10 22:17:39,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 99 transitions, 1022 flow, removed 8 selfloop flow, removed 9 redundant places. [2024-11-10 22:17:39,208 INFO L231 Difference]: Finished difference. Result has 158 places, 78 transitions, 707 flow [2024-11-10 22:17:39,209 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=782, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=707, PETRI_PLACES=158, PETRI_TRANSITIONS=78} [2024-11-10 22:17:39,209 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 127 predicate places. [2024-11-10 22:17:39,209 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 78 transitions, 707 flow [2024-11-10 22:17:39,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:39,209 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:39,209 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:39,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-10 22:17:39,210 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:39,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:39,210 INFO L85 PathProgramCache]: Analyzing trace with hash 939809844, now seen corresponding path program 4 times [2024-11-10 22:17:39,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:39,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335127089] [2024-11-10 22:17:39,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:39,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:39,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:42,138 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:17:42,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:42,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335127089] [2024-11-10 22:17:42,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335127089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:42,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:42,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 22:17:42,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440960130] [2024-11-10 22:17:42,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:42,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 22:17:42,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:42,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 22:17:42,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-10 22:17:42,187 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-10 22:17:42,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 78 transitions, 707 flow. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:42,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:42,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-10 22:17:42,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:43,087 INFO L124 PetriNetUnfolderBase]: 35/180 cut-off events. [2024-11-10 22:17:43,087 INFO L125 PetriNetUnfolderBase]: For 730/730 co-relation queries the response was YES. [2024-11-10 22:17:43,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 800 conditions, 180 events. 35/180 cut-off events. For 730/730 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 603 event pairs, 20 based on Foata normal form. 3/183 useless extension candidates. Maximal degree in co-relation 695. Up to 88 conditions per place. [2024-11-10 22:17:43,089 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 50 selfloop transitions, 10 changer transitions 11/82 dead transitions. [2024-11-10 22:17:43,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 82 transitions, 852 flow [2024-11-10 22:17:43,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 22:17:43,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-10 22:17:43,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 134 transitions. [2024-11-10 22:17:43,090 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37222222222222223 [2024-11-10 22:17:43,090 INFO L175 Difference]: Start difference. First operand has 158 places, 78 transitions, 707 flow. Second operand 12 states and 134 transitions. [2024-11-10 22:17:43,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 82 transitions, 852 flow [2024-11-10 22:17:43,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 82 transitions, 778 flow, removed 8 selfloop flow, removed 19 redundant places. [2024-11-10 22:17:43,094 INFO L231 Difference]: Finished difference. Result has 143 places, 70 transitions, 588 flow [2024-11-10 22:17:43,094 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=588, PETRI_PLACES=143, PETRI_TRANSITIONS=70} [2024-11-10 22:17:43,094 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 112 predicate places. [2024-11-10 22:17:43,095 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 70 transitions, 588 flow [2024-11-10 22:17:43,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:43,095 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:43,095 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:43,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-10 22:17:43,095 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:43,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:43,096 INFO L85 PathProgramCache]: Analyzing trace with hash 915460950, now seen corresponding path program 3 times [2024-11-10 22:17:43,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:43,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067200116] [2024-11-10 22:17:43,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:43,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:43,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:44,575 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:17:44,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:44,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067200116] [2024-11-10 22:17:44,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067200116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:44,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:44,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 22:17:44,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251279786] [2024-11-10 22:17:44,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:44,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 22:17:44,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:44,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 22:17:44,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-10 22:17:44,620 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-10 22:17:44,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 70 transitions, 588 flow. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:44,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:44,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-10 22:17:44,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:45,116 INFO L124 PetriNetUnfolderBase]: 30/172 cut-off events. [2024-11-10 22:17:45,117 INFO L125 PetriNetUnfolderBase]: For 569/569 co-relation queries the response was YES. [2024-11-10 22:17:45,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 715 conditions, 172 events. 30/172 cut-off events. For 569/569 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 572 event pairs, 14 based on Foata normal form. 6/178 useless extension candidates. Maximal degree in co-relation 650. Up to 71 conditions per place. [2024-11-10 22:17:45,118 INFO L140 encePairwiseOnDemand]: 19/30 looper letters, 49 selfloop transitions, 13 changer transitions 9/82 dead transitions. [2024-11-10 22:17:45,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 82 transitions, 782 flow [2024-11-10 22:17:45,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 22:17:45,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-10 22:17:45,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 135 transitions. [2024-11-10 22:17:45,120 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.375 [2024-11-10 22:17:45,120 INFO L175 Difference]: Start difference. First operand has 143 places, 70 transitions, 588 flow. Second operand 12 states and 135 transitions. [2024-11-10 22:17:45,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 82 transitions, 782 flow [2024-11-10 22:17:45,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 82 transitions, 744 flow, removed 2 selfloop flow, removed 11 redundant places. [2024-11-10 22:17:45,123 INFO L231 Difference]: Finished difference. Result has 135 places, 69 transitions, 569 flow [2024-11-10 22:17:45,123 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=569, PETRI_PLACES=135, PETRI_TRANSITIONS=69} [2024-11-10 22:17:45,123 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 104 predicate places. [2024-11-10 22:17:45,123 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 69 transitions, 569 flow [2024-11-10 22:17:45,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:45,124 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:45,124 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:45,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-10 22:17:45,124 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:45,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:45,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1328695080, now seen corresponding path program 4 times [2024-11-10 22:17:45,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:45,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245353593] [2024-11-10 22:17:45,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:45,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:45,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:46,225 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:17:46,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:46,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245353593] [2024-11-10 22:17:46,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245353593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:46,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:46,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 22:17:46,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905271407] [2024-11-10 22:17:46,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:46,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 22:17:46,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:46,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 22:17:46,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-10 22:17:46,256 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-10 22:17:46,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 69 transitions, 569 flow. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:46,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:46,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-10 22:17:46,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:46,781 INFO L124 PetriNetUnfolderBase]: 24/143 cut-off events. [2024-11-10 22:17:46,782 INFO L125 PetriNetUnfolderBase]: For 509/509 co-relation queries the response was YES. [2024-11-10 22:17:46,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 604 conditions, 143 events. 24/143 cut-off events. For 509/509 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 368 event pairs, 12 based on Foata normal form. 3/146 useless extension candidates. Maximal degree in co-relation 539. Up to 56 conditions per place. [2024-11-10 22:17:46,783 INFO L140 encePairwiseOnDemand]: 19/30 looper letters, 41 selfloop transitions, 16 changer transitions 8/75 dead transitions. [2024-11-10 22:17:46,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 75 transitions, 709 flow [2024-11-10 22:17:46,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 22:17:46,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 22:17:46,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 162 transitions. [2024-11-10 22:17:46,784 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36 [2024-11-10 22:17:46,784 INFO L175 Difference]: Start difference. First operand has 135 places, 69 transitions, 569 flow. Second operand 15 states and 162 transitions. [2024-11-10 22:17:46,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 75 transitions, 709 flow [2024-11-10 22:17:46,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 75 transitions, 676 flow, removed 4 selfloop flow, removed 10 redundant places. [2024-11-10 22:17:46,788 INFO L231 Difference]: Finished difference. Result has 139 places, 63 transitions, 531 flow [2024-11-10 22:17:46,788 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=531, PETRI_PLACES=139, PETRI_TRANSITIONS=63} [2024-11-10 22:17:46,792 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 108 predicate places. [2024-11-10 22:17:46,792 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 63 transitions, 531 flow [2024-11-10 22:17:46,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:46,793 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:46,793 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:46,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-10 22:17:46,794 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:46,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:46,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1328934401, now seen corresponding path program 1 times [2024-11-10 22:17:46,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:46,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881300990] [2024-11-10 22:17:46,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:46,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:46,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:48,049 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:17:48,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:48,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881300990] [2024-11-10 22:17:48,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881300990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:48,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:48,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 22:17:48,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910701238] [2024-11-10 22:17:48,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:48,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 22:17:48,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:48,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 22:17:48,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-10 22:17:48,065 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 30 [2024-11-10 22:17:48,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 63 transitions, 531 flow. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:48,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:48,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 30 [2024-11-10 22:17:48,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:49,035 INFO L124 PetriNetUnfolderBase]: 21/137 cut-off events. [2024-11-10 22:17:49,036 INFO L125 PetriNetUnfolderBase]: For 471/471 co-relation queries the response was YES. [2024-11-10 22:17:49,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 592 conditions, 137 events. 21/137 cut-off events. For 471/471 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 333 event pairs, 4 based on Foata normal form. 2/139 useless extension candidates. Maximal degree in co-relation 550. Up to 30 conditions per place. [2024-11-10 22:17:49,037 INFO L140 encePairwiseOnDemand]: 21/30 looper letters, 47 selfloop transitions, 23 changer transitions 0/77 dead transitions. [2024-11-10 22:17:49,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 77 transitions, 748 flow [2024-11-10 22:17:49,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 22:17:49,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-10 22:17:49,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 136 transitions. [2024-11-10 22:17:49,038 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3487179487179487 [2024-11-10 22:17:49,038 INFO L175 Difference]: Start difference. First operand has 139 places, 63 transitions, 531 flow. Second operand 13 states and 136 transitions. [2024-11-10 22:17:49,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 77 transitions, 748 flow [2024-11-10 22:17:49,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 77 transitions, 680 flow, removed 7 selfloop flow, removed 17 redundant places. [2024-11-10 22:17:49,040 INFO L231 Difference]: Finished difference. Result has 133 places, 71 transitions, 585 flow [2024-11-10 22:17:49,041 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=585, PETRI_PLACES=133, PETRI_TRANSITIONS=71} [2024-11-10 22:17:49,041 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 102 predicate places. [2024-11-10 22:17:49,041 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 71 transitions, 585 flow [2024-11-10 22:17:49,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:49,042 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:49,042 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:49,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-10 22:17:49,042 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:49,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:49,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1199416320, now seen corresponding path program 1 times [2024-11-10 22:17:49,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:49,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247364556] [2024-11-10 22:17:49,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:49,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:51,257 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:17:51,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:51,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247364556] [2024-11-10 22:17:51,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247364556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:51,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:51,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 22:17:51,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443663087] [2024-11-10 22:17:51,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:51,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 22:17:51,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:51,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 22:17:51,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-10 22:17:51,293 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-10 22:17:51,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 71 transitions, 585 flow. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:51,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:51,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-10 22:17:51,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:51,687 INFO L124 PetriNetUnfolderBase]: 19/133 cut-off events. [2024-11-10 22:17:51,688 INFO L125 PetriNetUnfolderBase]: For 456/456 co-relation queries the response was YES. [2024-11-10 22:17:51,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 577 conditions, 133 events. 19/133 cut-off events. For 456/456 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 317 event pairs, 4 based on Foata normal form. 2/135 useless extension candidates. Maximal degree in co-relation 485. Up to 46 conditions per place. [2024-11-10 22:17:51,689 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 44 selfloop transitions, 8 changer transitions 14/74 dead transitions. [2024-11-10 22:17:51,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 74 transitions, 713 flow [2024-11-10 22:17:51,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 22:17:51,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 22:17:51,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 111 transitions. [2024-11-10 22:17:51,690 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37 [2024-11-10 22:17:51,690 INFO L175 Difference]: Start difference. First operand has 133 places, 71 transitions, 585 flow. Second operand 10 states and 111 transitions. [2024-11-10 22:17:51,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 74 transitions, 713 flow [2024-11-10 22:17:51,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 74 transitions, 686 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-11-10 22:17:51,692 INFO L231 Difference]: Finished difference. Result has 130 places, 60 transitions, 515 flow [2024-11-10 22:17:51,692 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=515, PETRI_PLACES=130, PETRI_TRANSITIONS=60} [2024-11-10 22:17:51,693 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 99 predicate places. [2024-11-10 22:17:51,693 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 60 transitions, 515 flow [2024-11-10 22:17:51,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:51,698 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:51,698 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:51,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-10 22:17:51,698 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:51,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:51,698 INFO L85 PathProgramCache]: Analyzing trace with hash 891453696, now seen corresponding path program 1 times [2024-11-10 22:17:51,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:51,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8043505] [2024-11-10 22:17:51,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:51,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:53,798 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:17:53,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:53,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8043505] [2024-11-10 22:17:53,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8043505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:53,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:53,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 22:17:53,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776094070] [2024-11-10 22:17:53,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:53,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 22:17:53,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:53,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 22:17:53,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:17:53,862 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-10 22:17:53,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 60 transitions, 515 flow. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:53,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:53,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-10 22:17:53,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:54,400 INFO L124 PetriNetUnfolderBase]: 9/99 cut-off events. [2024-11-10 22:17:54,401 INFO L125 PetriNetUnfolderBase]: For 421/421 co-relation queries the response was YES. [2024-11-10 22:17:54,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 459 conditions, 99 events. 9/99 cut-off events. For 421/421 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 158 event pairs, 1 based on Foata normal form. 4/103 useless extension candidates. Maximal degree in co-relation 426. Up to 26 conditions per place. [2024-11-10 22:17:54,401 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 40 selfloop transitions, 3 changer transitions 16/64 dead transitions. [2024-11-10 22:17:54,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 64 transitions, 653 flow [2024-11-10 22:17:54,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 22:17:54,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 22:17:54,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 99 transitions. [2024-11-10 22:17:54,402 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36666666666666664 [2024-11-10 22:17:54,402 INFO L175 Difference]: Start difference. First operand has 130 places, 60 transitions, 515 flow. Second operand 9 states and 99 transitions. [2024-11-10 22:17:54,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 64 transitions, 653 flow [2024-11-10 22:17:54,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 64 transitions, 607 flow, removed 0 selfloop flow, removed 13 redundant places. [2024-11-10 22:17:54,405 INFO L231 Difference]: Finished difference. Result has 113 places, 48 transitions, 391 flow [2024-11-10 22:17:54,405 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=391, PETRI_PLACES=113, PETRI_TRANSITIONS=48} [2024-11-10 22:17:54,406 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 82 predicate places. [2024-11-10 22:17:54,406 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 48 transitions, 391 flow [2024-11-10 22:17:54,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:54,406 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:54,406 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:54,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-10 22:17:54,407 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:54,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:54,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1534725070, now seen corresponding path program 1 times [2024-11-10 22:17:54,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:54,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841609297] [2024-11-10 22:17:54,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:54,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:55,323 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:17:55,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:55,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841609297] [2024-11-10 22:17:55,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841609297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:55,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:55,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 22:17:55,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76279432] [2024-11-10 22:17:55,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:55,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 22:17:55,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:55,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 22:17:55,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-10 22:17:55,350 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 30 [2024-11-10 22:17:55,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 48 transitions, 391 flow. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:55,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:55,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 30 [2024-11-10 22:17:55,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:55,695 INFO L124 PetriNetUnfolderBase]: 5/73 cut-off events. [2024-11-10 22:17:55,695 INFO L125 PetriNetUnfolderBase]: For 318/318 co-relation queries the response was YES. [2024-11-10 22:17:55,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 327 conditions, 73 events. 5/73 cut-off events. For 318/318 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 0 based on Foata normal form. 1/74 useless extension candidates. Maximal degree in co-relation 295. Up to 27 conditions per place. [2024-11-10 22:17:55,696 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 33 selfloop transitions, 12 changer transitions 0/49 dead transitions. [2024-11-10 22:17:55,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 49 transitions, 486 flow [2024-11-10 22:17:55,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 22:17:55,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 22:17:55,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 94 transitions. [2024-11-10 22:17:55,697 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.31333333333333335 [2024-11-10 22:17:55,697 INFO L175 Difference]: Start difference. First operand has 113 places, 48 transitions, 391 flow. Second operand 10 states and 94 transitions. [2024-11-10 22:17:55,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 49 transitions, 486 flow [2024-11-10 22:17:55,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 49 transitions, 437 flow, removed 10 selfloop flow, removed 15 redundant places. [2024-11-10 22:17:55,700 INFO L231 Difference]: Finished difference. Result has 88 places, 47 transitions, 360 flow [2024-11-10 22:17:55,700 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=360, PETRI_PLACES=88, PETRI_TRANSITIONS=47} [2024-11-10 22:17:55,701 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 57 predicate places. [2024-11-10 22:17:55,701 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 47 transitions, 360 flow [2024-11-10 22:17:55,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:55,701 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:55,701 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:55,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-10 22:17:55,701 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:55,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:55,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1558767400, now seen corresponding path program 2 times [2024-11-10 22:17:55,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:55,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128458143] [2024-11-10 22:17:55,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:55,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:55,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:56,798 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:17:56,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:56,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128458143] [2024-11-10 22:17:56,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128458143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:56,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:56,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 22:17:56,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528004852] [2024-11-10 22:17:56,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:56,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 22:17:56,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:56,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 22:17:56,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:17:56,836 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 30 [2024-11-10 22:17:56,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 47 transitions, 360 flow. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:56,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:56,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 30 [2024-11-10 22:17:56,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:57,231 INFO L124 PetriNetUnfolderBase]: 4/69 cut-off events. [2024-11-10 22:17:57,231 INFO L125 PetriNetUnfolderBase]: For 279/279 co-relation queries the response was YES. [2024-11-10 22:17:57,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 69 events. 4/69 cut-off events. For 279/279 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 29 event pairs, 0 based on Foata normal form. 3/72 useless extension candidates. Maximal degree in co-relation 256. Up to 26 conditions per place. [2024-11-10 22:17:57,232 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 0 selfloop transitions, 0 changer transitions 46/46 dead transitions. [2024-11-10 22:17:57,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 46 transitions, 433 flow [2024-11-10 22:17:57,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 22:17:57,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 22:17:57,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 102 transitions. [2024-11-10 22:17:57,233 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.34 [2024-11-10 22:17:57,233 INFO L175 Difference]: Start difference. First operand has 88 places, 47 transitions, 360 flow. Second operand 10 states and 102 transitions. [2024-11-10 22:17:57,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 46 transitions, 433 flow [2024-11-10 22:17:57,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 46 transitions, 400 flow, removed 3 selfloop flow, removed 11 redundant places. [2024-11-10 22:17:57,234 INFO L231 Difference]: Finished difference. Result has 83 places, 0 transitions, 0 flow [2024-11-10 22:17:57,234 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=83, PETRI_TRANSITIONS=0} [2024-11-10 22:17:57,235 INFO L277 CegarLoopForPetriNet]: 31 programPoint places, 52 predicate places. [2024-11-10 22:17:57,235 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 0 transitions, 0 flow [2024-11-10 22:17:57,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:57,237 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2024-11-10 22:17:57,238 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2024-11-10 22:17:57,238 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2024-11-10 22:17:57,238 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2024-11-10 22:17:57,238 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-11-10 22:17:57,238 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2024-11-10 22:17:57,238 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2024-11-10 22:17:57,238 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2024-11-10 22:17:57,238 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2024-11-10 22:17:57,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-10 22:17:57,239 INFO L407 BasicCegarLoop]: Path program histogram: [5, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:57,246 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 22:17:57,247 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 22:17:57,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:17:57 BasicIcfg [2024-11-10 22:17:57,250 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 22:17:57,251 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 22:17:57,251 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 22:17:57,251 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 22:17:57,251 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:16:40" (3/4) ... [2024-11-10 22:17:57,253 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 22:17:57,255 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-10 22:17:57,260 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2024-11-10 22:17:57,260 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2024-11-10 22:17:57,261 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-10 22:17:57,261 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-10 22:17:57,261 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-10 22:17:57,261 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-10 22:17:57,261 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-10 22:17:57,360 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 22:17:57,361 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 22:17:57,361 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 22:17:57,361 INFO L158 Benchmark]: Toolchain (without parser) took 78181.82ms. Allocated memory was 207.6MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 136.7MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 435.6MB. Max. memory is 16.1GB. [2024-11-10 22:17:57,362 INFO L158 Benchmark]: CDTParser took 0.86ms. Allocated memory is still 121.6MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:17:57,362 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.17ms. Allocated memory is still 207.6MB. Free memory was 136.7MB in the beginning and 103.6MB in the end (delta: 33.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-10 22:17:57,362 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.06ms. Allocated memory is still 207.6MB. Free memory was 103.6MB in the beginning and 101.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 22:17:57,362 INFO L158 Benchmark]: Boogie Preprocessor took 48.86ms. Allocated memory is still 207.6MB. Free memory was 101.0MB in the beginning and 98.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 22:17:57,363 INFO L158 Benchmark]: IcfgBuilder took 737.83ms. Allocated memory is still 207.6MB. Free memory was 98.4MB in the beginning and 100.9MB in the end (delta: -2.6MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2024-11-10 22:17:57,363 INFO L158 Benchmark]: TraceAbstraction took 76764.65ms. Allocated memory was 207.6MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 99.9MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 395.1MB. Max. memory is 16.1GB. [2024-11-10 22:17:57,363 INFO L158 Benchmark]: Witness Printer took 110.40ms. Allocated memory is still 1.9GB. Free memory was 1.4GB in the beginning and 1.4GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 22:17:57,364 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86ms. Allocated memory is still 121.6MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 467.17ms. Allocated memory is still 207.6MB. Free memory was 136.7MB in the beginning and 103.6MB in the end (delta: 33.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.06ms. Allocated memory is still 207.6MB. Free memory was 103.6MB in the beginning and 101.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.86ms. Allocated memory is still 207.6MB. Free memory was 101.0MB in the beginning and 98.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 737.83ms. Allocated memory is still 207.6MB. Free memory was 98.4MB in the beginning and 100.9MB in the end (delta: -2.6MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. * TraceAbstraction took 76764.65ms. Allocated memory was 207.6MB in the beginning and 1.9GB in the end (delta: 1.7GB). Free memory was 99.9MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 395.1MB. Max. memory is 16.1GB. * Witness Printer took 110.40ms. Allocated memory is still 1.9GB. Free memory was 1.4GB in the beginning and 1.4GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 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, 40 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: 76.7s, OverallIterations: 33, TraceHistogramMax: 11, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 21.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1639 SdHoareTripleChecker+Valid, 5.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1477 mSDsluCounter, 1772 SdHoareTripleChecker+Invalid, 5.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1680 mSDsCounter, 152 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5697 IncrementalHoareTripleChecker+Invalid, 5849 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 152 mSolverCounterUnsat, 92 mSDtfsCounter, 5697 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 658 GetRequests, 171 SyntacticMatches, 11 SemanticMatches, 476 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1387 ImplicationChecksByTransitivity, 23.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1325occurred in iteration=19, InterpolantAutomatonStates: 383, 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, 0.8s SatisfiabilityAnalysisTime, 52.1s InterpolantComputationTime, 1649 NumberOfCodeBlocks, 1609 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 1679 ConstructedInterpolants, 0 QuantifiedInterpolants, 121142 SizeOfPredicates, 25 NumberOfNonLiveVariables, 1149 ConjunctsInSsa, 95 ConjunctsInUnsatCore, 42 InterpolantComputations, 30 PerfectInterpolantSequences, 5123/5596 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! [2024-11-10 22:17:57,403 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