./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c -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 362ca5c35cce683744d8d619a442f154ce469608d45ae43ff282ddf886694959 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 15:08:46,398 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:08:46,453 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 15:08:46,458 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:08:46,459 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:08:46,487 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:08:46,488 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:08:46,488 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:08:46,489 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:08:46,490 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:08:46,490 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 15:08:46,490 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 15:08:46,491 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:08:46,493 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:08:46,493 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:08:46,494 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:08:46,494 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 15:08:46,494 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 15:08:46,494 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:08:46,494 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 15:08:46,495 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:08:46,495 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 15:08:46,495 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 15:08:46,496 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 15:08:46,496 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:08:46,496 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 15:08:46,496 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:08:46,497 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 15:08:46,497 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:08:46,497 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:08:46,497 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:08:46,498 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:08:46,498 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 15:08:46,499 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 15:08:46,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:08:46,499 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:08:46,499 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 15:08:46,500 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 15:08:46,500 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:08:46,500 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 15:08:46,500 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 15:08:46,501 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 15:08:46,501 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 15:08:46,501 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 15:08:46,501 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 362ca5c35cce683744d8d619a442f154ce469608d45ae43ff282ddf886694959 [2024-11-09 15:08:46,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:08:46,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:08:46,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:08:46,744 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:08:46,744 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:08:46,745 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c [2024-11-09 15:08:48,043 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:08:48,191 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:08:48,192 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c [2024-11-09 15:08:48,198 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26e6b15ae/613bcf831e92485890b220e0b2ea83cc/FLAG600d19102 [2024-11-09 15:08:48,209 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26e6b15ae/613bcf831e92485890b220e0b2ea83cc [2024-11-09 15:08:48,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:08:48,212 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:08:48,213 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:08:48,213 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:08:48,217 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:08:48,218 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:08:48" (1/1) ... [2024-11-09 15:08:48,218 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@553b5ce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:48, skipping insertion in model container [2024-11-09 15:08:48,219 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:08:48" (1/1) ... [2024-11-09 15:08:48,238 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:08:48,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:08:48,451 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:08:48,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:08:48,614 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:08:48,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:48 WrapperNode [2024-11-09 15:08:48,617 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:08:48,618 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:08:48,618 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:08:48,618 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:08:48,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:48" (1/1) ... [2024-11-09 15:08:48,645 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:48" (1/1) ... [2024-11-09 15:08:48,671 INFO L138 Inliner]: procedures = 25, calls = 30, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 356 [2024-11-09 15:08:48,672 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:08:48,672 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:08:48,672 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:08:48,673 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:08:48,681 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:48" (1/1) ... [2024-11-09 15:08:48,682 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:48" (1/1) ... [2024-11-09 15:08:48,685 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:48" (1/1) ... [2024-11-09 15:08:48,711 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-09 15:08:48,711 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:48" (1/1) ... [2024-11-09 15:08:48,711 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:48" (1/1) ... [2024-11-09 15:08:48,717 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:48" (1/1) ... [2024-11-09 15:08:48,720 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:48" (1/1) ... [2024-11-09 15:08:48,721 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:48" (1/1) ... [2024-11-09 15:08:48,722 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:48" (1/1) ... [2024-11-09 15:08:48,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:08:48,725 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:08:48,725 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:08:48,725 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:08:48,726 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:48" (1/1) ... [2024-11-09 15:08:48,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:08:48,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:08:48,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 15:08:48,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 15:08:48,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 15:08:48,797 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 15:08:48,797 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 15:08:48,797 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 15:08:48,797 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 15:08:48,797 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-09 15:08:48,797 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-09 15:08:48,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 15:08:48,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 15:08:48,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 15:08:48,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 15:08:48,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 15:08:48,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:08:48,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:08:48,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 15:08:48,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 15:08:48,800 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 15:08:48,926 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:08:48,932 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:08:49,312 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 15:08:49,313 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:08:49,653 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:08:49,654 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-09 15:08:49,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:08:49 BoogieIcfgContainer [2024-11-09 15:08:49,654 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:08:49,657 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 15:08:49,657 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 15:08:49,660 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 15:08:49,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:08:48" (1/3) ... [2024-11-09 15:08:49,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105001b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:08:49, skipping insertion in model container [2024-11-09 15:08:49,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:08:48" (2/3) ... [2024-11-09 15:08:49,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105001b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:08:49, skipping insertion in model container [2024-11-09 15:08:49,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:08:49" (3/3) ... [2024-11-09 15:08:49,662 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-name-comparator-trans.wvr.c [2024-11-09 15:08:49,678 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 15:08:49,678 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2024-11-09 15:08:49,678 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 15:08:49,748 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-09 15:08:49,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 113 transitions, 247 flow [2024-11-09 15:08:49,832 INFO L124 PetriNetUnfolderBase]: 16/110 cut-off events. [2024-11-09 15:08:49,832 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-09 15:08:49,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 110 events. 16/110 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 437 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2024-11-09 15:08:49,838 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 113 transitions, 247 flow [2024-11-09 15:08:49,841 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 108 transitions, 231 flow [2024-11-09 15:08:49,852 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:08:49,857 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;@1d6f3882, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:08:49,858 INFO L334 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2024-11-09 15:08:49,863 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:08:49,863 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-09 15:08:49,863 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:08:49,863 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:49,864 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-09 15:08:49,864 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-09 15:08:49,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:49,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1010455, now seen corresponding path program 1 times [2024-11-09 15:08:49,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:49,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043413110] [2024-11-09 15:08:49,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:49,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:50,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:50,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:50,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043413110] [2024-11-09 15:08:50,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043413110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:50,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:50,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:08:50,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671107693] [2024-11-09 15:08:50,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:50,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:08:50,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:50,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:08:50,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:08:50,117 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 113 [2024-11-09 15:08:50,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 108 transitions, 231 flow. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:50,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:50,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 113 [2024-11-09 15:08:50,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:52,063 INFO L124 PetriNetUnfolderBase]: 12357/23532 cut-off events. [2024-11-09 15:08:52,063 INFO L125 PetriNetUnfolderBase]: For 537/537 co-relation queries the response was YES. [2024-11-09 15:08:52,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40272 conditions, 23532 events. 12357/23532 cut-off events. For 537/537 co-relation queries the response was YES. Maximal size of possible extension queue 1117. Compared 213241 event pairs, 8540 based on Foata normal form. 1/18431 useless extension candidates. Maximal degree in co-relation 38950. Up to 16288 conditions per place. [2024-11-09 15:08:52,309 INFO L140 encePairwiseOnDemand]: 105/113 looper letters, 51 selfloop transitions, 4 changer transitions 0/104 dead transitions. [2024-11-09 15:08:52,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 104 transitions, 333 flow [2024-11-09 15:08:52,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:08:52,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:08:52,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 267 transitions. [2024-11-09 15:08:52,321 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5907079646017699 [2024-11-09 15:08:52,322 INFO L175 Difference]: Start difference. First operand has 102 places, 108 transitions, 231 flow. Second operand 4 states and 267 transitions. [2024-11-09 15:08:52,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 104 transitions, 333 flow [2024-11-09 15:08:52,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 104 transitions, 324 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 15:08:52,331 INFO L231 Difference]: Finished difference. Result has 99 places, 104 transitions, 222 flow [2024-11-09 15:08:52,333 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=222, PETRI_PLACES=99, PETRI_TRANSITIONS=104} [2024-11-09 15:08:52,335 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, -3 predicate places. [2024-11-09 15:08:52,335 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 104 transitions, 222 flow [2024-11-09 15:08:52,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:52,336 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:52,336 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-09 15:08:52,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 15:08:52,336 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-09 15:08:52,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:52,337 INFO L85 PathProgramCache]: Analyzing trace with hash 31325149, now seen corresponding path program 1 times [2024-11-09 15:08:52,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:52,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874157250] [2024-11-09 15:08:52,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:52,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:52,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:52,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:52,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:52,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874157250] [2024-11-09 15:08:52,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874157250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:52,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:52,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:08:52,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527803103] [2024-11-09 15:08:52,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:52,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:08:52,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:52,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:08:52,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:08:52,409 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 113 [2024-11-09 15:08:52,409 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 104 transitions, 222 flow. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:52,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:52,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 113 [2024-11-09 15:08:52,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:54,069 INFO L124 PetriNetUnfolderBase]: 12358/23536 cut-off events. [2024-11-09 15:08:54,069 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2024-11-09 15:08:54,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40126 conditions, 23536 events. 12358/23536 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 1117. Compared 213194 event pairs, 8540 based on Foata normal form. 1/18435 useless extension candidates. Maximal degree in co-relation 40098. Up to 16293 conditions per place. [2024-11-09 15:08:54,296 INFO L140 encePairwiseOnDemand]: 108/113 looper letters, 54 selfloop transitions, 4 changer transitions 0/107 dead transitions. [2024-11-09 15:08:54,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 107 transitions, 350 flow [2024-11-09 15:08:54,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:08:54,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:08:54,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 267 transitions. [2024-11-09 15:08:54,299 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5907079646017699 [2024-11-09 15:08:54,299 INFO L175 Difference]: Start difference. First operand has 99 places, 104 transitions, 222 flow. Second operand 4 states and 267 transitions. [2024-11-09 15:08:54,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 107 transitions, 350 flow [2024-11-09 15:08:54,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 107 transitions, 336 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:08:54,303 INFO L231 Difference]: Finished difference. Result has 101 places, 107 transitions, 241 flow [2024-11-09 15:08:54,303 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=241, PETRI_PLACES=101, PETRI_TRANSITIONS=107} [2024-11-09 15:08:54,304 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, -1 predicate places. [2024-11-09 15:08:54,304 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 107 transitions, 241 flow [2024-11-09 15:08:54,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:54,304 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:54,305 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-09 15:08:54,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 15:08:54,305 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-09 15:08:54,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:54,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1200697911, now seen corresponding path program 1 times [2024-11-09 15:08:54,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:54,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714486169] [2024-11-09 15:08:54,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:54,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:54,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:54,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:54,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714486169] [2024-11-09 15:08:54,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714486169] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:08:54,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438109702] [2024-11-09 15:08:54,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:54,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:08:54,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:08:54,396 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) [2024-11-09 15:08:54,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 15:08:54,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:54,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:08:54,468 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:08:54,499 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:54,500 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:08:54,537 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:54,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438109702] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:08:54,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:08:54,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-09 15:08:54,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34518907] [2024-11-09 15:08:54,538 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:08:54,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 15:08:54,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:54,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 15:08:54,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-09 15:08:54,554 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 113 [2024-11-09 15:08:54,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 107 transitions, 241 flow. Second operand has 10 states, 10 states have (on average 53.0) internal successors, (530), 10 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:54,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:54,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 113 [2024-11-09 15:08:54,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:56,131 INFO L124 PetriNetUnfolderBase]: 12361/23548 cut-off events. [2024-11-09 15:08:56,131 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2024-11-09 15:08:56,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40162 conditions, 23548 events. 12361/23548 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 1117. Compared 213401 event pairs, 8540 based on Foata normal form. 0/18443 useless extension candidates. Maximal degree in co-relation 40105. Up to 16296 conditions per place. [2024-11-09 15:08:56,270 INFO L140 encePairwiseOnDemand]: 108/113 looper letters, 54 selfloop transitions, 13 changer transitions 0/116 dead transitions. [2024-11-09 15:08:56,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 116 transitions, 411 flow [2024-11-09 15:08:56,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 15:08:56,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 15:08:56,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 590 transitions. [2024-11-09 15:08:56,272 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5221238938053098 [2024-11-09 15:08:56,272 INFO L175 Difference]: Start difference. First operand has 101 places, 107 transitions, 241 flow. Second operand 10 states and 590 transitions. [2024-11-09 15:08:56,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 116 transitions, 411 flow [2024-11-09 15:08:56,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 116 transitions, 408 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:08:56,275 INFO L231 Difference]: Finished difference. Result has 112 places, 116 transitions, 318 flow [2024-11-09 15:08:56,275 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=318, PETRI_PLACES=112, PETRI_TRANSITIONS=116} [2024-11-09 15:08:56,276 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 10 predicate places. [2024-11-09 15:08:56,276 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 116 transitions, 318 flow [2024-11-09 15:08:56,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 53.0) internal successors, (530), 10 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:56,277 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:56,277 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:08:56,291 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 15:08:56,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:08:56,478 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-09 15:08:56,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:56,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1353861537, now seen corresponding path program 1 times [2024-11-09 15:08:56,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:56,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294720280] [2024-11-09 15:08:56,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:56,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:08:56,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:08:56,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:56,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294720280] [2024-11-09 15:08:56,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294720280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:56,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:56,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:08:56,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573357556] [2024-11-09 15:08:56,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:56,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:08:56,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:56,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:08:56,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:08:56,583 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 113 [2024-11-09 15:08:56,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 116 transitions, 318 flow. Second operand has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:08:56,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:56,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 113 [2024-11-09 15:08:56,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:59,781 INFO L124 PetriNetUnfolderBase]: 26973/48903 cut-off events. [2024-11-09 15:08:59,781 INFO L125 PetriNetUnfolderBase]: For 146/146 co-relation queries the response was YES. [2024-11-09 15:08:59,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85207 conditions, 48903 events. 26973/48903 cut-off events. For 146/146 co-relation queries the response was YES. Maximal size of possible extension queue 2161. Compared 466114 event pairs, 11145 based on Foata normal form. 366/39751 useless extension candidates. Maximal degree in co-relation 85171. Up to 20231 conditions per place. [2024-11-09 15:09:00,069 INFO L140 encePairwiseOnDemand]: 108/113 looper letters, 146 selfloop transitions, 3 changer transitions 0/197 dead transitions. [2024-11-09 15:09:00,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 197 transitions, 786 flow [2024-11-09 15:09:00,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:09:00,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:09:00,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 347 transitions. [2024-11-09 15:09:00,073 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7676991150442478 [2024-11-09 15:09:00,073 INFO L175 Difference]: Start difference. First operand has 112 places, 116 transitions, 318 flow. Second operand 4 states and 347 transitions. [2024-11-09 15:09:00,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 197 transitions, 786 flow [2024-11-09 15:09:00,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 197 transitions, 756 flow, removed 11 selfloop flow, removed 3 redundant places. [2024-11-09 15:09:00,079 INFO L231 Difference]: Finished difference. Result has 114 places, 118 transitions, 310 flow [2024-11-09 15:09:00,079 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=310, PETRI_PLACES=114, PETRI_TRANSITIONS=118} [2024-11-09 15:09:00,080 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 12 predicate places. [2024-11-09 15:09:00,081 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 118 transitions, 310 flow [2024-11-09 15:09:00,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:00,081 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:00,082 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:00,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 15:09:00,082 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-09 15:09:00,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:00,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1827894053, now seen corresponding path program 1 times [2024-11-09 15:09:00,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:00,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320053208] [2024-11-09 15:09:00,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:00,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:00,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:00,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:00,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320053208] [2024-11-09 15:09:00,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320053208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:00,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:00,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:09:00,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335302582] [2024-11-09 15:09:00,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:00,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:09:00,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:00,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:09:00,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:09:00,161 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 113 [2024-11-09 15:09:00,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 118 transitions, 310 flow. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:00,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:00,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 113 [2024-11-09 15:09:00,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:05,519 INFO L124 PetriNetUnfolderBase]: 51877/90743 cut-off events. [2024-11-09 15:09:05,520 INFO L125 PetriNetUnfolderBase]: For 6288/7468 co-relation queries the response was YES. [2024-11-09 15:09:05,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164816 conditions, 90743 events. 51877/90743 cut-off events. For 6288/7468 co-relation queries the response was YES. Maximal size of possible extension queue 3617. Compared 899849 event pairs, 21438 based on Foata normal form. 726/75185 useless extension candidates. Maximal degree in co-relation 164782. Up to 38015 conditions per place. [2024-11-09 15:09:06,088 INFO L140 encePairwiseOnDemand]: 108/113 looper letters, 149 selfloop transitions, 3 changer transitions 0/200 dead transitions. [2024-11-09 15:09:06,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 200 transitions, 813 flow [2024-11-09 15:09:06,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:09:06,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:09:06,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 344 transitions. [2024-11-09 15:09:06,090 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7610619469026548 [2024-11-09 15:09:06,090 INFO L175 Difference]: Start difference. First operand has 114 places, 118 transitions, 310 flow. Second operand 4 states and 344 transitions. [2024-11-09 15:09:06,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 200 transitions, 813 flow [2024-11-09 15:09:06,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 200 transitions, 807 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:09:06,097 INFO L231 Difference]: Finished difference. Result has 118 places, 120 transitions, 330 flow [2024-11-09 15:09:06,097 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=330, PETRI_PLACES=118, PETRI_TRANSITIONS=120} [2024-11-09 15:09:06,098 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 16 predicate places. [2024-11-09 15:09:06,098 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 120 transitions, 330 flow [2024-11-09 15:09:06,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:06,098 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:06,098 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:06,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 15:09:06,099 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-09 15:09:06,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:06,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1148829827, now seen corresponding path program 1 times [2024-11-09 15:09:06,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:06,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792383948] [2024-11-09 15:09:06,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:06,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:06,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:06,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:06,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792383948] [2024-11-09 15:09:06,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792383948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:06,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:06,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 15:09:06,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339225599] [2024-11-09 15:09:06,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:06,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:09:06,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:06,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:09:06,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:09:06,134 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 113 [2024-11-09 15:09:06,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 120 transitions, 330 flow. Second operand has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:06,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:06,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 113 [2024-11-09 15:09:06,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:10,653 INFO L124 PetriNetUnfolderBase]: 43219/73911 cut-off events. [2024-11-09 15:09:10,653 INFO L125 PetriNetUnfolderBase]: For 8743/10183 co-relation queries the response was YES. [2024-11-09 15:09:10,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141257 conditions, 73911 events. 43219/73911 cut-off events. For 8743/10183 co-relation queries the response was YES. Maximal size of possible extension queue 2705. Compared 688649 event pairs, 16970 based on Foata normal form. 0/63153 useless extension candidates. Maximal degree in co-relation 141221. Up to 32265 conditions per place. [2024-11-09 15:09:11,179 INFO L140 encePairwiseOnDemand]: 108/113 looper letters, 181 selfloop transitions, 4 changer transitions 0/235 dead transitions. [2024-11-09 15:09:11,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 235 transitions, 985 flow [2024-11-09 15:09:11,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 15:09:11,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 15:09:11,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 436 transitions. [2024-11-09 15:09:11,185 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7716814159292036 [2024-11-09 15:09:11,185 INFO L175 Difference]: Start difference. First operand has 118 places, 120 transitions, 330 flow. Second operand 5 states and 436 transitions. [2024-11-09 15:09:11,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 235 transitions, 985 flow [2024-11-09 15:09:11,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 235 transitions, 977 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:09:11,223 INFO L231 Difference]: Finished difference. Result has 124 places, 122 transitions, 353 flow [2024-11-09 15:09:11,225 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=353, PETRI_PLACES=124, PETRI_TRANSITIONS=122} [2024-11-09 15:09:11,225 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 22 predicate places. [2024-11-09 15:09:11,228 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 122 transitions, 353 flow [2024-11-09 15:09:11,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:11,229 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:11,229 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:11,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 15:09:11,229 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-09 15:09:11,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:11,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1219616327, now seen corresponding path program 1 times [2024-11-09 15:09:11,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:11,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498277797] [2024-11-09 15:09:11,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:11,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:11,274 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 15:09:11,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:11,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498277797] [2024-11-09 15:09:11,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498277797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:11,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:11,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:09:11,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364954370] [2024-11-09 15:09:11,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:11,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:09:11,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:11,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:09:11,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:09:11,276 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 113 [2024-11-09 15:09:11,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 122 transitions, 353 flow. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:11,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:11,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 113 [2024-11-09 15:09:11,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:16,443 INFO L124 PetriNetUnfolderBase]: 40006/75809 cut-off events. [2024-11-09 15:09:16,443 INFO L125 PetriNetUnfolderBase]: For 17565/18785 co-relation queries the response was YES. [2024-11-09 15:09:16,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144034 conditions, 75809 events. 40006/75809 cut-off events. For 17565/18785 co-relation queries the response was YES. Maximal size of possible extension queue 2795. Compared 786718 event pairs, 29551 based on Foata normal form. 1/62708 useless extension candidates. Maximal degree in co-relation 144000. Up to 53445 conditions per place. [2024-11-09 15:09:17,082 INFO L140 encePairwiseOnDemand]: 110/113 looper letters, 69 selfloop transitions, 2 changer transitions 0/121 dead transitions. [2024-11-09 15:09:17,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 121 transitions, 491 flow [2024-11-09 15:09:17,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:09:17,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:09:17,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 219 transitions. [2024-11-09 15:09:17,084 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6460176991150443 [2024-11-09 15:09:17,084 INFO L175 Difference]: Start difference. First operand has 124 places, 122 transitions, 353 flow. Second operand 3 states and 219 transitions. [2024-11-09 15:09:17,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 121 transitions, 491 flow [2024-11-09 15:09:17,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 121 transitions, 491 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 15:09:17,104 INFO L231 Difference]: Finished difference. Result has 126 places, 121 transitions, 353 flow [2024-11-09 15:09:17,104 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=353, PETRI_PLACES=126, PETRI_TRANSITIONS=121} [2024-11-09 15:09:17,105 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 24 predicate places. [2024-11-09 15:09:17,105 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 121 transitions, 353 flow [2024-11-09 15:09:17,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:17,105 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:17,105 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:17,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 15:09:17,106 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-09 15:09:17,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:17,106 INFO L85 PathProgramCache]: Analyzing trace with hash 920384031, now seen corresponding path program 1 times [2024-11-09 15:09:17,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:17,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345250056] [2024-11-09 15:09:17,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:17,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:17,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:17,169 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 15:09:17,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:17,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345250056] [2024-11-09 15:09:17,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345250056] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:09:17,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565960750] [2024-11-09 15:09:17,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:17,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:09:17,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:09:17,171 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) [2024-11-09 15:09:17,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 15:09:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:17,243 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 15:09:17,244 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:09:17,286 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 15:09:17,286 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:09:17,313 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 15:09:17,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565960750] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:09:17,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:09:17,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-09 15:09:17,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387135588] [2024-11-09 15:09:17,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:09:17,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 15:09:17,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:17,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 15:09:17,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-09 15:09:17,331 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 113 [2024-11-09 15:09:17,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 121 transitions, 353 flow. Second operand has 10 states, 10 states have (on average 53.7) internal successors, (537), 10 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:17,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:17,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 113 [2024-11-09 15:09:17,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:22,425 INFO L124 PetriNetUnfolderBase]: 40004/75807 cut-off events. [2024-11-09 15:09:22,426 INFO L125 PetriNetUnfolderBase]: For 17571/18791 co-relation queries the response was YES. [2024-11-09 15:09:22,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144032 conditions, 75807 events. 40004/75807 cut-off events. For 17571/18791 co-relation queries the response was YES. Maximal size of possible extension queue 2795. Compared 786707 event pairs, 29551 based on Foata normal form. 2/62707 useless extension candidates. Maximal degree in co-relation 144004. Up to 53437 conditions per place. [2024-11-09 15:09:23,014 INFO L140 encePairwiseOnDemand]: 109/113 looper letters, 60 selfloop transitions, 10 changer transitions 0/119 dead transitions. [2024-11-09 15:09:23,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 119 transitions, 485 flow [2024-11-09 15:09:23,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 15:09:23,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 15:09:23,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 426 transitions. [2024-11-09 15:09:23,017 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.538558786346397 [2024-11-09 15:09:23,017 INFO L175 Difference]: Start difference. First operand has 126 places, 121 transitions, 353 flow. Second operand 7 states and 426 transitions. [2024-11-09 15:09:23,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 119 transitions, 485 flow [2024-11-09 15:09:23,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 119 transitions, 481 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:09:23,035 INFO L231 Difference]: Finished difference. Result has 130 places, 119 transitions, 361 flow [2024-11-09 15:09:23,036 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=361, PETRI_PLACES=130, PETRI_TRANSITIONS=119} [2024-11-09 15:09:23,037 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 28 predicate places. [2024-11-09 15:09:23,037 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 119 transitions, 361 flow [2024-11-09 15:09:23,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 53.7) internal successors, (537), 10 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:23,038 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:23,038 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-09 15:09:23,051 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 15:09:23,242 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,SelfDestructingSolverStorable7 [2024-11-09 15:09:23,243 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-09 15:09:23,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:23,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1240596317, now seen corresponding path program 2 times [2024-11-09 15:09:23,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:23,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389374033] [2024-11-09 15:09:23,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:23,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:23,353 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 15:09:23,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:23,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389374033] [2024-11-09 15:09:23,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389374033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:23,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:23,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 15:09:23,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037509659] [2024-11-09 15:09:23,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:23,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 15:09:23,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:23,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 15:09:23,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 15:09:23,373 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 113 [2024-11-09 15:09:23,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 119 transitions, 361 flow. Second operand has 9 states, 9 states have (on average 55.111111111111114) internal successors, (496), 9 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:23,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:23,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 113 [2024-11-09 15:09:23,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand