./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-complex/safestack_relacy.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/pthread-complex/safestack_relacy.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 516fee84c55ddb7fa4275a43ad5a2da6ea994abf63bbbbd8ed5c82108d65f7b0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:14:12,164 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:14:12,208 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:14:12,212 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:14:12,212 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:14:12,226 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:14:12,226 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:14:12,227 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:14:12,227 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:14:12,227 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:14:12,228 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:14:12,228 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:14:12,228 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:14:12,229 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:14:12,229 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:14:12,229 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:14:12,229 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:14:12,229 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:14:12,230 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:14:12,230 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:14:12,230 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:14:12,234 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:14:12,234 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:14:12,234 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:14:12,234 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:14:12,234 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:14:12,234 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:14:12,234 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:14:12,234 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:14:12,235 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:14:12,235 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:14:12,235 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:14:12,235 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:14:12,235 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:14:12,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:14:12,235 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:14:12,236 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:14:12,236 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:14:12,236 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:14:12,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:14:12,236 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:14:12,237 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:14:12,237 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:14:12,237 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:14:12,237 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 516fee84c55ddb7fa4275a43ad5a2da6ea994abf63bbbbd8ed5c82108d65f7b0 [2024-11-10 22:14:12,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:14:12,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:14:12,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:14:12,449 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:14:12,449 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:14:12,450 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-complex/safestack_relacy.i [2024-11-10 22:14:13,647 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:14:13,894 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:14:13,894 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-complex/safestack_relacy.i [2024-11-10 22:14:13,918 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a818bd3a6/211cd30df59c4d128f0451b8b3533302/FLAG19b9b7191 [2024-11-10 22:14:13,932 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a818bd3a6/211cd30df59c4d128f0451b8b3533302 [2024-11-10 22:14:13,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:14:13,935 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:14:13,936 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:14:13,936 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:14:13,940 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:14:13,942 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:14:13" (1/1) ... [2024-11-10 22:14:13,943 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6784ef1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:14:13, skipping insertion in model container [2024-11-10 22:14:13,943 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:14:13" (1/1) ... [2024-11-10 22:14:13,994 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:14:14,450 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:14:14,461 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:14:14,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:14:14,576 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:14:14,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:14:14 WrapperNode [2024-11-10 22:14:14,577 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:14:14,578 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:14:14,578 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:14:14,578 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:14:14,583 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:14:14" (1/1) ... [2024-11-10 22:14:14,616 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:14:14" (1/1) ... [2024-11-10 22:14:14,649 INFO L138 Inliner]: procedures = 458, calls = 48, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 182 [2024-11-10 22:14:14,651 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:14:14,652 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:14:14,652 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:14:14,652 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:14:14,662 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:14:14" (1/1) ... [2024-11-10 22:14:14,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:14:14" (1/1) ... [2024-11-10 22:14:14,669 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:14:14" (1/1) ... [2024-11-10 22:14:14,690 INFO L175 MemorySlicer]: Split 37 memory accesses to 3 slices as follows [2, 5, 30]. 81 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 3, 8]. The 13 writes are split as follows [0, 1, 12]. [2024-11-10 22:14:14,691 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:14:14" (1/1) ... [2024-11-10 22:14:14,692 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:14:14" (1/1) ... [2024-11-10 22:14:14,707 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:14:14" (1/1) ... [2024-11-10 22:14:14,708 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:14:14" (1/1) ... [2024-11-10 22:14:14,711 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:14:14" (1/1) ... [2024-11-10 22:14:14,715 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:14:14" (1/1) ... [2024-11-10 22:14:14,719 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:14:14,720 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:14:14,720 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:14:14,720 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:14:14,723 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:14:14" (1/1) ... [2024-11-10 22:14:14,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:14:14,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:14:14,754 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 22:14:14,755 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 22:14:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 22:14:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 22:14:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 22:14:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:14:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-10 22:14:14,792 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-10 22:14:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:14:14,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:14:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 22:14:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 22:14:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 22:14:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:14:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 22:14:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 22:14:14,796 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 22:14:15,007 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:14:15,010 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:14:15,234 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:14:15,235 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:14:15,329 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:14:15,329 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:14:15,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:14:15 BoogieIcfgContainer [2024-11-10 22:14:15,330 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:14:15,334 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:14:15,334 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:14:15,337 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:14:15,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:14:13" (1/3) ... [2024-11-10 22:14:15,337 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f6c233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:14:15, skipping insertion in model container [2024-11-10 22:14:15,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:14:14" (2/3) ... [2024-11-10 22:14:15,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f6c233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:14:15, skipping insertion in model container [2024-11-10 22:14:15,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:14:15" (3/3) ... [2024-11-10 22:14:15,340 INFO L112 eAbstractionObserver]: Analyzing ICFG safestack_relacy.i [2024-11-10 22:14:15,352 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:14:15,352 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-10 22:14:15,352 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:14:15,400 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-10 22:14:15,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 93 transitions, 193 flow [2024-11-10 22:14:15,459 INFO L124 PetriNetUnfolderBase]: 17/103 cut-off events. [2024-11-10 22:14:15,459 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 22:14:15,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 103 events. 17/103 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 264 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 57. Up to 4 conditions per place. [2024-11-10 22:14:15,463 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 93 transitions, 193 flow [2024-11-10 22:14:15,466 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 92 transitions, 191 flow [2024-11-10 22:14:15,471 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:14:15,476 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;@78034cac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:14:15,476 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-10 22:14:15,478 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:14:15,478 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-11-10 22:14:15,478 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:14:15,479 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:15,479 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 22:14:15,479 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:14:15,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:15,484 INFO L85 PathProgramCache]: Analyzing trace with hash 975854878, now seen corresponding path program 1 times [2024-11-10 22:14:15,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:15,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878098598] [2024-11-10 22:14:15,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:15,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:15,808 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 22:14:15,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:14:15,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878098598] [2024-11-10 22:14:15,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878098598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:14:15,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:14:15,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 22:14:15,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283067571] [2024-11-10 22:14:15,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:14:15,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:14:15,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:14:15,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:14:15,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:14:15,858 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 93 [2024-11-10 22:14:15,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 92 transitions, 191 flow. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 22:14:15,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:14:15,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 93 [2024-11-10 22:14:15,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:14:16,032 INFO L124 PetriNetUnfolderBase]: 162/404 cut-off events. [2024-11-10 22:14:16,032 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 22:14:16,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 404 events. 162/404 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2151 event pairs, 125 based on Foata normal form. 76/443 useless extension candidates. Maximal degree in co-relation 670. Up to 311 conditions per place. [2024-11-10 22:14:16,039 INFO L140 encePairwiseOnDemand]: 80/93 looper letters, 41 selfloop transitions, 2 changer transitions 0/81 dead transitions. [2024-11-10 22:14:16,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 81 transitions, 255 flow [2024-11-10 22:14:16,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:14:16,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:14:16,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 168 transitions. [2024-11-10 22:14:16,053 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6021505376344086 [2024-11-10 22:14:16,054 INFO L175 Difference]: Start difference. First operand has 81 places, 92 transitions, 191 flow. Second operand 3 states and 168 transitions. [2024-11-10 22:14:16,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 81 transitions, 255 flow [2024-11-10 22:14:16,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 81 transitions, 255 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:14:16,062 INFO L231 Difference]: Finished difference. Result has 79 places, 81 transitions, 173 flow [2024-11-10 22:14:16,064 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=173, PETRI_PLACES=79, PETRI_TRANSITIONS=81} [2024-11-10 22:14:16,067 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, -2 predicate places. [2024-11-10 22:14:16,068 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 81 transitions, 173 flow [2024-11-10 22:14:16,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 22:14:16,068 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:16,068 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:14:16,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:14:16,070 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:14:16,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:16,070 INFO L85 PathProgramCache]: Analyzing trace with hash -940550288, now seen corresponding path program 1 times [2024-11-10 22:14:16,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:16,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159277534] [2024-11-10 22:14:16,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:16,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:16,170 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 22:14:16,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:14:16,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159277534] [2024-11-10 22:14:16,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159277534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:14:16,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:14:16,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:14:16,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299132902] [2024-11-10 22:14:16,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:14:16,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:14:16,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:14:16,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:14:16,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:14:16,185 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 93 [2024-11-10 22:14:16,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 81 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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 22:14:16,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:14:16,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 93 [2024-11-10 22:14:16,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:14:16,315 INFO L124 PetriNetUnfolderBase]: 163/421 cut-off events. [2024-11-10 22:14:16,316 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 22:14:16,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 754 conditions, 421 events. 163/421 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2250 event pairs, 125 based on Foata normal form. 2/386 useless extension candidates. Maximal degree in co-relation 693. Up to 321 conditions per place. [2024-11-10 22:14:16,321 INFO L140 encePairwiseOnDemand]: 88/93 looper letters, 47 selfloop transitions, 3 changer transitions 0/85 dead transitions. [2024-11-10 22:14:16,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 85 transitions, 283 flow [2024-11-10 22:14:16,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:14:16,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:14:16,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 169 transitions. [2024-11-10 22:14:16,326 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6057347670250897 [2024-11-10 22:14:16,326 INFO L175 Difference]: Start difference. First operand has 79 places, 81 transitions, 173 flow. Second operand 3 states and 169 transitions. [2024-11-10 22:14:16,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 85 transitions, 283 flow [2024-11-10 22:14:16,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 85 transitions, 277 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:14:16,329 INFO L231 Difference]: Finished difference. Result has 80 places, 83 transitions, 190 flow [2024-11-10 22:14:16,329 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=80, PETRI_TRANSITIONS=83} [2024-11-10 22:14:16,330 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, -1 predicate places. [2024-11-10 22:14:16,330 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 83 transitions, 190 flow [2024-11-10 22:14:16,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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 22:14:16,331 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:16,331 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:14:16,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 22:14:16,332 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:14:16,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:16,333 INFO L85 PathProgramCache]: Analyzing trace with hash 550355104, now seen corresponding path program 1 times [2024-11-10 22:14:16,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:16,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903411743] [2024-11-10 22:14:16,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:16,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:16,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:16,428 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 22:14:16,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:14:16,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903411743] [2024-11-10 22:14:16,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903411743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:14:16,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:14:16,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:14:16,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476595451] [2024-11-10 22:14:16,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:14:16,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:14:16,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:14:16,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:14:16,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:14:16,455 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 93 [2024-11-10 22:14:16,456 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 83 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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 22:14:16,456 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:14:16,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 93 [2024-11-10 22:14:16,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:14:16,582 INFO L124 PetriNetUnfolderBase]: 163/419 cut-off events. [2024-11-10 22:14:16,582 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 22:14:16,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 763 conditions, 419 events. 163/419 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2259 event pairs, 125 based on Foata normal form. 2/386 useless extension candidates. Maximal degree in co-relation 693. Up to 324 conditions per place. [2024-11-10 22:14:16,584 INFO L140 encePairwiseOnDemand]: 87/93 looper letters, 50 selfloop transitions, 4 changer transitions 0/86 dead transitions. [2024-11-10 22:14:16,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 86 transitions, 304 flow [2024-11-10 22:14:16,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:14:16,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:14:16,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 200 transitions. [2024-11-10 22:14:16,588 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5376344086021505 [2024-11-10 22:14:16,589 INFO L175 Difference]: Start difference. First operand has 80 places, 83 transitions, 190 flow. Second operand 4 states and 200 transitions. [2024-11-10 22:14:16,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 86 transitions, 304 flow [2024-11-10 22:14:16,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 86 transitions, 301 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:14:16,606 INFO L231 Difference]: Finished difference. Result has 84 places, 84 transitions, 208 flow [2024-11-10 22:14:16,607 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=208, PETRI_PLACES=84, PETRI_TRANSITIONS=84} [2024-11-10 22:14:16,608 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 3 predicate places. [2024-11-10 22:14:16,608 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 84 transitions, 208 flow [2024-11-10 22:14:16,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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 22:14:16,609 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:16,609 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:14:16,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 22:14:16,609 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:14:16,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:16,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1470983653, now seen corresponding path program 1 times [2024-11-10 22:14:16,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:16,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19669980] [2024-11-10 22:14:16,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:16,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:16,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:16,727 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 22:14:16,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:14:16,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19669980] [2024-11-10 22:14:16,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19669980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:14:16,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:14:16,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:14:16,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117518130] [2024-11-10 22:14:16,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:14:16,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:14:16,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:14:16,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:14:16,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:14:16,752 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 93 [2024-11-10 22:14:16,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 84 transitions, 208 flow. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 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 22:14:16,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:14:16,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 93 [2024-11-10 22:14:16,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:14:16,843 INFO L124 PetriNetUnfolderBase]: 162/414 cut-off events. [2024-11-10 22:14:16,844 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-10 22:14:16,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 760 conditions, 414 events. 162/414 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2141 event pairs, 125 based on Foata normal form. 1/382 useless extension candidates. Maximal degree in co-relation 726. Up to 311 conditions per place. [2024-11-10 22:14:16,846 INFO L140 encePairwiseOnDemand]: 88/93 looper letters, 45 selfloop transitions, 4 changer transitions 0/84 dead transitions. [2024-11-10 22:14:16,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 84 transitions, 301 flow [2024-11-10 22:14:16,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:14:16,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:14:16,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 186 transitions. [2024-11-10 22:14:16,848 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-10 22:14:16,848 INFO L175 Difference]: Start difference. First operand has 84 places, 84 transitions, 208 flow. Second operand 4 states and 186 transitions. [2024-11-10 22:14:16,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 84 transitions, 301 flow [2024-11-10 22:14:16,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 84 transitions, 295 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-10 22:14:16,850 INFO L231 Difference]: Finished difference. Result has 86 places, 83 transitions, 207 flow [2024-11-10 22:14:16,850 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=207, PETRI_PLACES=86, PETRI_TRANSITIONS=83} [2024-11-10 22:14:16,851 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 5 predicate places. [2024-11-10 22:14:16,852 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 83 transitions, 207 flow [2024-11-10 22:14:16,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 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 22:14:16,853 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:16,853 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:14:16,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 22:14:16,853 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:14:16,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:16,854 INFO L85 PathProgramCache]: Analyzing trace with hash -471293619, now seen corresponding path program 1 times [2024-11-10 22:14:16,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:16,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437493382] [2024-11-10 22:14:16,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:16,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:16,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:16,950 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:14:16,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:14:16,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437493382] [2024-11-10 22:14:16,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437493382] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:14:16,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910322065] [2024-11-10 22:14:16,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:16,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:14:16,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:14:16,953 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 22:14:16,954 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 22:14:17,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:17,027 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 22:14:17,030 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:14:17,075 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:14:17,076 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:14:17,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910322065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:14:17,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:14:17,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-10 22:14:17,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489300332] [2024-11-10 22:14:17,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:14:17,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:14:17,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:14:17,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:14:17,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-10 22:14:17,094 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 93 [2024-11-10 22:14:17,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 83 transitions, 207 flow. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 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 22:14:17,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:14:17,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 93 [2024-11-10 22:14:17,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:14:17,229 INFO L124 PetriNetUnfolderBase]: 162/412 cut-off events. [2024-11-10 22:14:17,229 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-10 22:14:17,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 763 conditions, 412 events. 162/412 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2124 event pairs, 125 based on Foata normal form. 2/381 useless extension candidates. Maximal degree in co-relation 721. Up to 314 conditions per place. [2024-11-10 22:14:17,231 INFO L140 encePairwiseOnDemand]: 87/93 looper letters, 44 selfloop transitions, 6 changer transitions 0/81 dead transitions. [2024-11-10 22:14:17,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 81 transitions, 299 flow [2024-11-10 22:14:17,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:14:17,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:14:17,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 190 transitions. [2024-11-10 22:14:17,233 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.510752688172043 [2024-11-10 22:14:17,233 INFO L175 Difference]: Start difference. First operand has 86 places, 83 transitions, 207 flow. Second operand 4 states and 190 transitions. [2024-11-10 22:14:17,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 81 transitions, 299 flow [2024-11-10 22:14:17,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 81 transitions, 291 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:14:17,236 INFO L231 Difference]: Finished difference. Result has 84 places, 81 transitions, 203 flow [2024-11-10 22:14:17,237 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=203, PETRI_PLACES=84, PETRI_TRANSITIONS=81} [2024-11-10 22:14:17,238 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 3 predicate places. [2024-11-10 22:14:17,239 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 81 transitions, 203 flow [2024-11-10 22:14:17,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 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 22:14:17,239 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:17,240 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:14:17,256 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 22:14:17,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:14:17,442 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:14:17,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:17,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1725199911, now seen corresponding path program 1 times [2024-11-10 22:14:17,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:17,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877721948] [2024-11-10 22:14:17,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:17,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:17,529 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:14:17,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:14:17,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877721948] [2024-11-10 22:14:17,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877721948] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:14:17,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197003947] [2024-11-10 22:14:17,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:17,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:14:17,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:14:17,531 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 22:14:17,532 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 22:14:17,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:17,599 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:14:17,600 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:14:17,624 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:14:17,624 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:14:17,668 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:14:17,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197003947] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:14:17,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:14:17,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-10 22:14:17,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837898494] [2024-11-10 22:14:17,672 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:14:17,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 22:14:17,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:14:17,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 22:14:17,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 22:14:17,705 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 93 [2024-11-10 22:14:17,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 81 transitions, 203 flow. Second operand has 10 states, 10 states have (on average 37.0) internal successors, (370), 10 states have internal predecessors, (370), 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 22:14:17,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:14:17,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 93 [2024-11-10 22:14:17,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:14:17,873 INFO L124 PetriNetUnfolderBase]: 164/438 cut-off events. [2024-11-10 22:14:17,873 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-11-10 22:14:17,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 808 conditions, 438 events. 164/438 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2341 event pairs, 125 based on Foata normal form. 3/408 useless extension candidates. Maximal degree in co-relation 766. Up to 319 conditions per place. [2024-11-10 22:14:17,875 INFO L140 encePairwiseOnDemand]: 86/93 looper letters, 52 selfloop transitions, 9 changer transitions 0/92 dead transitions. [2024-11-10 22:14:17,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 92 transitions, 359 flow [2024-11-10 22:14:17,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 22:14:17,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 22:14:17,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 309 transitions. [2024-11-10 22:14:17,876 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47465437788018433 [2024-11-10 22:14:17,877 INFO L175 Difference]: Start difference. First operand has 84 places, 81 transitions, 203 flow. Second operand 7 states and 309 transitions. [2024-11-10 22:14:17,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 92 transitions, 359 flow [2024-11-10 22:14:17,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 92 transitions, 339 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:14:17,879 INFO L231 Difference]: Finished difference. Result has 91 places, 86 transitions, 249 flow [2024-11-10 22:14:17,879 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=249, PETRI_PLACES=91, PETRI_TRANSITIONS=86} [2024-11-10 22:14:17,879 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 10 predicate places. [2024-11-10 22:14:17,880 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 86 transitions, 249 flow [2024-11-10 22:14:17,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 37.0) internal successors, (370), 10 states have internal predecessors, (370), 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 22:14:17,880 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:17,880 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:14:17,895 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 22:14:18,084 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,SelfDestructingSolverStorable5 [2024-11-10 22:14:18,085 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:14:18,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:18,085 INFO L85 PathProgramCache]: Analyzing trace with hash -821711112, now seen corresponding path program 1 times [2024-11-10 22:14:18,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:18,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581665682] [2024-11-10 22:14:18,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:18,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:18,128 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 22:14:18,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:14:18,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581665682] [2024-11-10 22:14:18,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581665682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:14:18,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:14:18,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:14:18,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54149428] [2024-11-10 22:14:18,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:14:18,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:14:18,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:14:18,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:14:18,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:14:18,138 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 93 [2024-11-10 22:14:18,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 86 transitions, 249 flow. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 22:14:18,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:14:18,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 93 [2024-11-10 22:14:18,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:14:18,243 INFO L124 PetriNetUnfolderBase]: 195/524 cut-off events. [2024-11-10 22:14:18,243 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-10 22:14:18,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 963 conditions, 524 events. 195/524 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2516 event pairs, 79 based on Foata normal form. 28/497 useless extension candidates. Maximal degree in co-relation 919. Up to 202 conditions per place. [2024-11-10 22:14:18,245 INFO L140 encePairwiseOnDemand]: 84/93 looper letters, 71 selfloop transitions, 5 changer transitions 5/110 dead transitions. [2024-11-10 22:14:18,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 110 transitions, 453 flow [2024-11-10 22:14:18,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:14:18,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:14:18,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 185 transitions. [2024-11-10 22:14:18,246 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6630824372759857 [2024-11-10 22:14:18,246 INFO L175 Difference]: Start difference. First operand has 91 places, 86 transitions, 249 flow. Second operand 3 states and 185 transitions. [2024-11-10 22:14:18,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 110 transitions, 453 flow [2024-11-10 22:14:18,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 110 transitions, 443 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-10 22:14:18,250 INFO L231 Difference]: Finished difference. Result has 86 places, 75 transitions, 231 flow [2024-11-10 22:14:18,251 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=231, PETRI_PLACES=86, PETRI_TRANSITIONS=75} [2024-11-10 22:14:18,251 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 5 predicate places. [2024-11-10 22:14:18,252 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 75 transitions, 231 flow [2024-11-10 22:14:18,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 22:14:18,253 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:18,253 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:14:18,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 22:14:18,253 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:14:18,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:18,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1725225043, now seen corresponding path program 1 times [2024-11-10 22:14:18,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:18,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292410176] [2024-11-10 22:14:18,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:18,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:18,385 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:14:18,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:14:18,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292410176] [2024-11-10 22:14:18,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292410176] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:14:18,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56591436] [2024-11-10 22:14:18,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:18,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:14:18,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:14:18,389 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 22:14:18,391 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 22:14:18,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:18,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 22:14:18,469 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:14:18,539 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:14:18,539 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:14:18,582 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:14:18,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56591436] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:14:18,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:14:18,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-11-10 22:14:18,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326252378] [2024-11-10 22:14:18,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:14:18,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 22:14:18,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:14:18,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 22:14:18,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-10 22:14:18,666 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 93 [2024-11-10 22:14:18,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 75 transitions, 231 flow. Second operand has 13 states, 13 states have (on average 32.30769230769231) internal successors, (420), 13 states have internal predecessors, (420), 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 22:14:18,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:14:18,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 93 [2024-11-10 22:14:18,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:14:18,845 INFO L124 PetriNetUnfolderBase]: 101/289 cut-off events. [2024-11-10 22:14:18,845 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2024-11-10 22:14:18,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 608 conditions, 289 events. 101/289 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 977 event pairs, 75 based on Foata normal form. 2/274 useless extension candidates. Maximal degree in co-relation 564. Up to 199 conditions per place. [2024-11-10 22:14:18,847 INFO L140 encePairwiseOnDemand]: 85/93 looper letters, 44 selfloop transitions, 9 changer transitions 0/76 dead transitions. [2024-11-10 22:14:18,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 76 transitions, 326 flow [2024-11-10 22:14:18,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:14:18,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:14:18,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 232 transitions. [2024-11-10 22:14:18,848 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4157706093189964 [2024-11-10 22:14:18,848 INFO L175 Difference]: Start difference. First operand has 86 places, 75 transitions, 231 flow. Second operand 6 states and 232 transitions. [2024-11-10 22:14:18,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 76 transitions, 326 flow [2024-11-10 22:14:18,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 76 transitions, 312 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 22:14:18,849 INFO L231 Difference]: Finished difference. Result has 83 places, 74 transitions, 235 flow [2024-11-10 22:14:18,849 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=235, PETRI_PLACES=83, PETRI_TRANSITIONS=74} [2024-11-10 22:14:18,850 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 2 predicate places. [2024-11-10 22:14:18,850 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 74 transitions, 235 flow [2024-11-10 22:14:18,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 32.30769230769231) internal successors, (420), 13 states have internal predecessors, (420), 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 22:14:18,851 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:18,851 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-10 22:14:18,874 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 22:14:19,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:14:19,052 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:14:19,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:19,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1796197786, now seen corresponding path program 1 times [2024-11-10 22:14:19,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:19,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543610476] [2024-11-10 22:14:19,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:19,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:19,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:19,112 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-10 22:14:19,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:14:19,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543610476] [2024-11-10 22:14:19,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543610476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:14:19,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:14:19,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:14:19,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792174560] [2024-11-10 22:14:19,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:14:19,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:14:19,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:14:19,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:14:19,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:14:19,127 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 93 [2024-11-10 22:14:19,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 74 transitions, 235 flow. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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 22:14:19,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:14:19,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 93 [2024-11-10 22:14:19,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:14:19,218 INFO L124 PetriNetUnfolderBase]: 101/288 cut-off events. [2024-11-10 22:14:19,218 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-11-10 22:14:19,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 591 conditions, 288 events. 101/288 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 978 event pairs, 75 based on Foata normal form. 1/272 useless extension candidates. Maximal degree in co-relation 542. Up to 207 conditions per place. [2024-11-10 22:14:19,219 INFO L140 encePairwiseOnDemand]: 88/93 looper letters, 41 selfloop transitions, 9 changer transitions 0/74 dead transitions. [2024-11-10 22:14:19,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 74 transitions, 333 flow [2024-11-10 22:14:19,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:14:19,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:14:19,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 185 transitions. [2024-11-10 22:14:19,220 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49731182795698925 [2024-11-10 22:14:19,221 INFO L175 Difference]: Start difference. First operand has 83 places, 74 transitions, 235 flow. Second operand 4 states and 185 transitions. [2024-11-10 22:14:19,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 74 transitions, 333 flow [2024-11-10 22:14:19,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 74 transitions, 322 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 22:14:19,222 INFO L231 Difference]: Finished difference. Result has 81 places, 74 transitions, 248 flow [2024-11-10 22:14:19,223 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=248, PETRI_PLACES=81, PETRI_TRANSITIONS=74} [2024-11-10 22:14:19,223 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 0 predicate places. [2024-11-10 22:14:19,224 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 74 transitions, 248 flow [2024-11-10 22:14:19,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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 22:14:19,224 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:19,224 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:14:19,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 22:14:19,225 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:14:19,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:19,225 INFO L85 PathProgramCache]: Analyzing trace with hash -363745680, now seen corresponding path program 2 times [2024-11-10 22:14:19,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:19,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296696464] [2024-11-10 22:14:19,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:19,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:14:19,243 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:14:19,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:14:19,269 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:14:19,269 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 22:14:19,270 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-10 22:14:19,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-10 22:14:19,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-10 22:14:19,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-10 22:14:19,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-10 22:14:19,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-10 22:14:19,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-10 22:14:19,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-10 22:14:19,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-11-10 22:14:19,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-10 22:14:19,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-10 22:14:19,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-10 22:14:19,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-10 22:14:19,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 22:14:19,274 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:14:19,275 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 22:14:19,275 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-10 22:14:19,312 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-10 22:14:19,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 116 places, 137 transitions, 290 flow [2024-11-10 22:14:19,322 INFO L124 PetriNetUnfolderBase]: 32/179 cut-off events. [2024-11-10 22:14:19,322 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 22:14:19,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 179 events. 32/179 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 587 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 111. Up to 8 conditions per place. [2024-11-10 22:14:19,323 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 137 transitions, 290 flow [2024-11-10 22:14:19,324 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 116 places, 137 transitions, 290 flow [2024-11-10 22:14:19,324 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:14:19,325 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;@78034cac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:14:19,325 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-10 22:14:19,326 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:14:19,326 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-11-10 22:14:19,326 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:14:19,326 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:19,326 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 22:14:19,326 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:14:19,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:19,327 INFO L85 PathProgramCache]: Analyzing trace with hash 733821054, now seen corresponding path program 1 times [2024-11-10 22:14:19,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:19,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949281150] [2024-11-10 22:14:19,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:19,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:19,356 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 22:14:19,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:14:19,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949281150] [2024-11-10 22:14:19,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949281150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:14:19,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:14:19,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 22:14:19,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282808946] [2024-11-10 22:14:19,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:14:19,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:14:19,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:14:19,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:14:19,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:14:19,367 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 137 [2024-11-10 22:14:19,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 137 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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 22:14:19,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:14:19,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 137 [2024-11-10 22:14:19,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:14:20,452 INFO L124 PetriNetUnfolderBase]: 9680/15541 cut-off events. [2024-11-10 22:14:20,453 INFO L125 PetriNetUnfolderBase]: For 220/220 co-relation queries the response was YES. [2024-11-10 22:14:20,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29685 conditions, 15541 events. 9680/15541 cut-off events. For 220/220 co-relation queries the response was YES. Maximal size of possible extension queue 694. Compared 118545 event pairs, 8003 based on Foata normal form. 2556/16759 useless extension candidates. Maximal degree in co-relation 23305. Up to 14001 conditions per place. [2024-11-10 22:14:20,524 INFO L140 encePairwiseOnDemand]: 120/137 looper letters, 73 selfloop transitions, 2 changer transitions 0/122 dead transitions. [2024-11-10 22:14:20,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 122 transitions, 410 flow [2024-11-10 22:14:20,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:14:20,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:14:20,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 231 transitions. [2024-11-10 22:14:20,527 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5620437956204379 [2024-11-10 22:14:20,527 INFO L175 Difference]: Start difference. First operand has 116 places, 137 transitions, 290 flow. Second operand 3 states and 231 transitions. [2024-11-10 22:14:20,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 122 transitions, 410 flow [2024-11-10 22:14:20,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 122 transitions, 410 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:14:20,529 INFO L231 Difference]: Finished difference. Result has 114 places, 122 transitions, 264 flow [2024-11-10 22:14:20,529 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=114, PETRI_TRANSITIONS=122} [2024-11-10 22:14:20,530 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -2 predicate places. [2024-11-10 22:14:20,530 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 122 transitions, 264 flow [2024-11-10 22:14:20,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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 22:14:20,530 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:20,530 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:14:20,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 22:14:20,530 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:14:20,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:20,531 INFO L85 PathProgramCache]: Analyzing trace with hash -119975047, now seen corresponding path program 1 times [2024-11-10 22:14:20,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:20,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393892497] [2024-11-10 22:14:20,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:20,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:20,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:20,597 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 22:14:20,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:14:20,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393892497] [2024-11-10 22:14:20,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393892497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:14:20,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:14:20,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:14:20,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290027299] [2024-11-10 22:14:20,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:14:20,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:14:20,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:14:20,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:14:20,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:14:20,605 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 137 [2024-11-10 22:14:20,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 122 transitions, 264 flow. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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 22:14:20,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:14:20,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 137 [2024-11-10 22:14:20,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:14:21,615 INFO L124 PetriNetUnfolderBase]: 9681/15558 cut-off events. [2024-11-10 22:14:21,615 INFO L125 PetriNetUnfolderBase]: For 220/220 co-relation queries the response was YES. [2024-11-10 22:14:21,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29713 conditions, 15558 events. 9681/15558 cut-off events. For 220/220 co-relation queries the response was YES. Maximal size of possible extension queue 695. Compared 118899 event pairs, 8003 based on Foata normal form. 2/14222 useless extension candidates. Maximal degree in co-relation 29651. Up to 14011 conditions per place. [2024-11-10 22:14:21,674 INFO L140 encePairwiseOnDemand]: 132/137 looper letters, 79 selfloop transitions, 3 changer transitions 0/126 dead transitions. [2024-11-10 22:14:21,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 126 transitions, 438 flow [2024-11-10 22:14:21,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:14:21,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:14:21,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 228 transitions. [2024-11-10 22:14:21,676 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5547445255474452 [2024-11-10 22:14:21,676 INFO L175 Difference]: Start difference. First operand has 114 places, 122 transitions, 264 flow. Second operand 3 states and 228 transitions. [2024-11-10 22:14:21,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 126 transitions, 438 flow [2024-11-10 22:14:21,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 126 transitions, 432 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:14:21,678 INFO L231 Difference]: Finished difference. Result has 115 places, 124 transitions, 281 flow [2024-11-10 22:14:21,678 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=281, PETRI_PLACES=115, PETRI_TRANSITIONS=124} [2024-11-10 22:14:21,678 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, -1 predicate places. [2024-11-10 22:14:21,678 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 124 transitions, 281 flow [2024-11-10 22:14:21,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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 22:14:21,679 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:21,679 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:14:21,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 22:14:21,679 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:14:21,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:21,679 INFO L85 PathProgramCache]: Analyzing trace with hash 2107107945, now seen corresponding path program 1 times [2024-11-10 22:14:21,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:21,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839510509] [2024-11-10 22:14:21,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:21,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:21,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:21,728 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 22:14:21,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:14:21,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839510509] [2024-11-10 22:14:21,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839510509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:14:21,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:14:21,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:14:21,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318534917] [2024-11-10 22:14:21,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:14:21,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:14:21,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:14:21,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:14:21,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:14:21,739 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 137 [2024-11-10 22:14:21,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 124 transitions, 281 flow. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 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 22:14:21,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:14:21,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 137 [2024-11-10 22:14:21,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:14:22,729 INFO L124 PetriNetUnfolderBase]: 9681/15556 cut-off events. [2024-11-10 22:14:22,729 INFO L125 PetriNetUnfolderBase]: For 225/225 co-relation queries the response was YES. [2024-11-10 22:14:22,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29722 conditions, 15556 events. 9681/15556 cut-off events. For 225/225 co-relation queries the response was YES. Maximal size of possible extension queue 695. Compared 118557 event pairs, 8003 based on Foata normal form. 2/14222 useless extension candidates. Maximal degree in co-relation 29651. Up to 14014 conditions per place. [2024-11-10 22:14:22,791 INFO L140 encePairwiseOnDemand]: 131/137 looper letters, 82 selfloop transitions, 4 changer transitions 0/127 dead transitions. [2024-11-10 22:14:22,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 127 transitions, 459 flow [2024-11-10 22:14:22,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:14:22,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:14:22,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 268 transitions. [2024-11-10 22:14:22,793 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48905109489051096 [2024-11-10 22:14:22,793 INFO L175 Difference]: Start difference. First operand has 115 places, 124 transitions, 281 flow. Second operand 4 states and 268 transitions. [2024-11-10 22:14:22,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 127 transitions, 459 flow [2024-11-10 22:14:22,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 127 transitions, 456 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:14:22,795 INFO L231 Difference]: Finished difference. Result has 119 places, 125 transitions, 299 flow [2024-11-10 22:14:22,795 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=299, PETRI_PLACES=119, PETRI_TRANSITIONS=125} [2024-11-10 22:14:22,796 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 3 predicate places. [2024-11-10 22:14:22,796 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 125 transitions, 299 flow [2024-11-10 22:14:22,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 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 22:14:22,796 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:22,796 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:14:22,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 22:14:22,797 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:14:22,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:22,797 INFO L85 PathProgramCache]: Analyzing trace with hash -583948466, now seen corresponding path program 1 times [2024-11-10 22:14:22,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:22,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974058829] [2024-11-10 22:14:22,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:22,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:22,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:22,874 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 22:14:22,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:14:22,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974058829] [2024-11-10 22:14:22,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974058829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:14:22,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:14:22,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:14:22,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444107930] [2024-11-10 22:14:22,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:14:22,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:14:22,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:14:22,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:14:22,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:14:22,896 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 137 [2024-11-10 22:14:22,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 125 transitions, 299 flow. Second operand has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 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 22:14:22,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:14:22,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 137 [2024-11-10 22:14:22,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:14:23,995 INFO L124 PetriNetUnfolderBase]: 9680/15551 cut-off events. [2024-11-10 22:14:23,996 INFO L125 PetriNetUnfolderBase]: For 230/230 co-relation queries the response was YES. [2024-11-10 22:14:24,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29719 conditions, 15551 events. 9680/15551 cut-off events. For 230/230 co-relation queries the response was YES. Maximal size of possible extension queue 694. Compared 118730 event pairs, 8003 based on Foata normal form. 1/14218 useless extension candidates. Maximal degree in co-relation 29684. Up to 14001 conditions per place. [2024-11-10 22:14:24,047 INFO L140 encePairwiseOnDemand]: 132/137 looper letters, 77 selfloop transitions, 4 changer transitions 0/125 dead transitions. [2024-11-10 22:14:24,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 125 transitions, 456 flow [2024-11-10 22:14:24,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:14:24,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:14:24,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 254 transitions. [2024-11-10 22:14:24,048 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4635036496350365 [2024-11-10 22:14:24,049 INFO L175 Difference]: Start difference. First operand has 119 places, 125 transitions, 299 flow. Second operand 4 states and 254 transitions. [2024-11-10 22:14:24,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 125 transitions, 456 flow [2024-11-10 22:14:24,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 125 transitions, 450 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-10 22:14:24,051 INFO L231 Difference]: Finished difference. Result has 121 places, 124 transitions, 298 flow [2024-11-10 22:14:24,051 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=298, PETRI_PLACES=121, PETRI_TRANSITIONS=124} [2024-11-10 22:14:24,052 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 5 predicate places. [2024-11-10 22:14:24,052 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 124 transitions, 298 flow [2024-11-10 22:14:24,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 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 22:14:24,052 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:24,052 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:14:24,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 22:14:24,053 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:14:24,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:24,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1527212982, now seen corresponding path program 1 times [2024-11-10 22:14:24,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:24,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831171551] [2024-11-10 22:14:24,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:24,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:24,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:24,122 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:14:24,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:14:24,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831171551] [2024-11-10 22:14:24,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831171551] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:14:24,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688765668] [2024-11-10 22:14:24,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:24,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:14:24,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:14:24,124 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 22:14:24,125 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 22:14:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:24,192 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 22:14:24,194 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:14:24,215 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:14:24,215 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:14:24,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688765668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:14:24,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:14:24,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-10 22:14:24,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354652181] [2024-11-10 22:14:24,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:14:24,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:14:24,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:14:24,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:14:24,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-10 22:14:24,229 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 137 [2024-11-10 22:14:24,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 124 transitions, 298 flow. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 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 22:14:24,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:14:24,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 137 [2024-11-10 22:14:24,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:14:25,310 INFO L124 PetriNetUnfolderBase]: 9680/15549 cut-off events. [2024-11-10 22:14:25,310 INFO L125 PetriNetUnfolderBase]: For 230/230 co-relation queries the response was YES. [2024-11-10 22:14:25,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29722 conditions, 15549 events. 9680/15549 cut-off events. For 230/230 co-relation queries the response was YES. Maximal size of possible extension queue 694. Compared 118569 event pairs, 8003 based on Foata normal form. 2/14217 useless extension candidates. Maximal degree in co-relation 29679. Up to 14004 conditions per place. [2024-11-10 22:14:25,378 INFO L140 encePairwiseOnDemand]: 131/137 looper letters, 76 selfloop transitions, 6 changer transitions 0/122 dead transitions. [2024-11-10 22:14:25,379 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 122 transitions, 454 flow [2024-11-10 22:14:25,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:14:25,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:14:25,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 258 transitions. [2024-11-10 22:14:25,381 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4708029197080292 [2024-11-10 22:14:25,381 INFO L175 Difference]: Start difference. First operand has 121 places, 124 transitions, 298 flow. Second operand 4 states and 258 transitions. [2024-11-10 22:14:25,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 122 transitions, 454 flow [2024-11-10 22:14:25,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 122 transitions, 446 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:14:25,384 INFO L231 Difference]: Finished difference. Result has 119 places, 122 transitions, 294 flow [2024-11-10 22:14:25,384 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=294, PETRI_PLACES=119, PETRI_TRANSITIONS=122} [2024-11-10 22:14:25,384 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 3 predicate places. [2024-11-10 22:14:25,384 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 122 transitions, 294 flow [2024-11-10 22:14:25,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 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 22:14:25,385 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:25,385 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:14:25,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-10 22:14:25,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-10 22:14:25,586 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:14:25,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:25,586 INFO L85 PathProgramCache]: Analyzing trace with hash 98962713, now seen corresponding path program 1 times [2024-11-10 22:14:25,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:25,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085925803] [2024-11-10 22:14:25,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:25,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:25,757 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:14:25,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:14:25,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085925803] [2024-11-10 22:14:25,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085925803] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:14:25,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280006631] [2024-11-10 22:14:25,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:25,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:14:25,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:14:25,761 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 22:14:25,762 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 22:14:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:25,834 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:14:25,835 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:14:25,865 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:14:25,866 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:14:25,900 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:14:25,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280006631] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:14:25,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:14:25,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-10 22:14:25,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591470242] [2024-11-10 22:14:25,900 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:14:25,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 22:14:25,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:14:25,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 22:14:25,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 22:14:25,932 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 137 [2024-11-10 22:14:25,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 122 transitions, 294 flow. Second operand has 10 states, 10 states have (on average 46.0) internal successors, (460), 10 states have internal predecessors, (460), 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 22:14:25,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:14:25,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 137 [2024-11-10 22:14:25,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:14:26,986 INFO L124 PetriNetUnfolderBase]: 9682/15575 cut-off events. [2024-11-10 22:14:26,986 INFO L125 PetriNetUnfolderBase]: For 245/245 co-relation queries the response was YES. [2024-11-10 22:14:27,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29767 conditions, 15575 events. 9682/15575 cut-off events. For 245/245 co-relation queries the response was YES. Maximal size of possible extension queue 695. Compared 118860 event pairs, 8003 based on Foata normal form. 3/14244 useless extension candidates. Maximal degree in co-relation 29724. Up to 14009 conditions per place. [2024-11-10 22:14:27,045 INFO L140 encePairwiseOnDemand]: 130/137 looper letters, 84 selfloop transitions, 9 changer transitions 0/133 dead transitions. [2024-11-10 22:14:27,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 133 transitions, 514 flow [2024-11-10 22:14:27,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 22:14:27,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 22:14:27,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 404 transitions. [2024-11-10 22:14:27,047 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42127215849843586 [2024-11-10 22:14:27,047 INFO L175 Difference]: Start difference. First operand has 119 places, 122 transitions, 294 flow. Second operand 7 states and 404 transitions. [2024-11-10 22:14:27,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 133 transitions, 514 flow [2024-11-10 22:14:27,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 133 transitions, 494 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:14:27,049 INFO L231 Difference]: Finished difference. Result has 126 places, 127 transitions, 340 flow [2024-11-10 22:14:27,049 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=340, PETRI_PLACES=126, PETRI_TRANSITIONS=127} [2024-11-10 22:14:27,049 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 10 predicate places. [2024-11-10 22:14:27,049 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 127 transitions, 340 flow [2024-11-10 22:14:27,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 46.0) internal successors, (460), 10 states have internal predecessors, (460), 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 22:14:27,050 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:27,050 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:14:27,063 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-10 22:14:27,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-10 22:14:27,254 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:14:27,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:27,255 INFO L85 PathProgramCache]: Analyzing trace with hash -266980725, now seen corresponding path program 1 times [2024-11-10 22:14:27,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:27,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056570268] [2024-11-10 22:14:27,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:27,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:27,389 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 22:14:27,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:14:27,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056570268] [2024-11-10 22:14:27,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056570268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:14:27,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:14:27,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:14:27,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873238311] [2024-11-10 22:14:27,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:14:27,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:14:27,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:14:27,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:14:27,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:14:27,397 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 137 [2024-11-10 22:14:27,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 127 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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 22:14:27,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:14:27,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 137 [2024-11-10 22:14:27,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:14:29,092 INFO L124 PetriNetUnfolderBase]: 14832/23797 cut-off events. [2024-11-10 22:14:29,093 INFO L125 PetriNetUnfolderBase]: For 279/279 co-relation queries the response was YES. [2024-11-10 22:14:29,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45203 conditions, 23797 events. 14832/23797 cut-off events. For 279/279 co-relation queries the response was YES. Maximal size of possible extension queue 675. Compared 176696 event pairs, 6250 based on Foata normal form. 83/20453 useless extension candidates. Maximal degree in co-relation 45158. Up to 16241 conditions per place. [2024-11-10 22:14:29,165 INFO L140 encePairwiseOnDemand]: 127/137 looper letters, 144 selfloop transitions, 6 changer transitions 1/192 dead transitions. [2024-11-10 22:14:29,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 192 transitions, 778 flow [2024-11-10 22:14:29,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:14:29,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:14:29,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 285 transitions. [2024-11-10 22:14:29,166 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6934306569343066 [2024-11-10 22:14:29,166 INFO L175 Difference]: Start difference. First operand has 126 places, 127 transitions, 340 flow. Second operand 3 states and 285 transitions. [2024-11-10 22:14:29,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 192 transitions, 778 flow [2024-11-10 22:14:29,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 192 transitions, 768 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-10 22:14:29,169 INFO L231 Difference]: Finished difference. Result has 127 places, 128 transitions, 364 flow [2024-11-10 22:14:29,169 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=364, PETRI_PLACES=127, PETRI_TRANSITIONS=128} [2024-11-10 22:14:29,169 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 11 predicate places. [2024-11-10 22:14:29,169 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 128 transitions, 364 flow [2024-11-10 22:14:29,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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 22:14:29,170 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:29,170 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:14:29,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 22:14:29,170 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:14:29,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:29,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1009387869, now seen corresponding path program 1 times [2024-11-10 22:14:29,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:29,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845308627] [2024-11-10 22:14:29,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:29,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:29,219 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 22:14:29,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:14:29,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845308627] [2024-11-10 22:14:29,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845308627] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:14:29,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661863697] [2024-11-10 22:14:29,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:29,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:14:29,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:14:29,222 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 22:14:29,223 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 22:14:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:29,300 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 22:14:29,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:14:29,360 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 22:14:29,361 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:14:29,398 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 22:14:29,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661863697] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:14:29,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:14:29,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 5] total 11 [2024-11-10 22:14:29,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36046936] [2024-11-10 22:14:29,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:14:29,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 22:14:29,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:14:29,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 22:14:29,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-10 22:14:29,496 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 137 [2024-11-10 22:14:29,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 128 transitions, 364 flow. Second operand has 11 states, 11 states have (on average 35.81818181818182) internal successors, (394), 11 states have internal predecessors, (394), 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 22:14:29,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:14:29,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 137 [2024-11-10 22:14:29,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:14:31,122 INFO L124 PetriNetUnfolderBase]: 13161/21258 cut-off events. [2024-11-10 22:14:31,122 INFO L125 PetriNetUnfolderBase]: For 4431/4431 co-relation queries the response was YES. [2024-11-10 22:14:31,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43546 conditions, 21258 events. 13161/21258 cut-off events. For 4431/4431 co-relation queries the response was YES. Maximal size of possible extension queue 623. Compared 157554 event pairs, 5469 based on Foata normal form. 734/19597 useless extension candidates. Maximal degree in co-relation 43497. Up to 13783 conditions per place. [2024-11-10 22:14:31,203 INFO L140 encePairwiseOnDemand]: 124/137 looper letters, 174 selfloop transitions, 13 changer transitions 30/250 dead transitions. [2024-11-10 22:14:31,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 250 transitions, 1037 flow [2024-11-10 22:14:31,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 22:14:31,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 22:14:31,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 507 transitions. [2024-11-10 22:14:31,205 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41119221411192214 [2024-11-10 22:14:31,205 INFO L175 Difference]: Start difference. First operand has 127 places, 128 transitions, 364 flow. Second operand 9 states and 507 transitions. [2024-11-10 22:14:31,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 250 transitions, 1037 flow [2024-11-10 22:14:31,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 250 transitions, 1032 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:14:31,212 INFO L231 Difference]: Finished difference. Result has 134 places, 126 transitions, 383 flow [2024-11-10 22:14:31,212 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=383, PETRI_PLACES=134, PETRI_TRANSITIONS=126} [2024-11-10 22:14:31,213 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 18 predicate places. [2024-11-10 22:14:31,213 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 126 transitions, 383 flow [2024-11-10 22:14:31,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 35.81818181818182) internal successors, (394), 11 states have internal predecessors, (394), 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 22:14:31,213 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:31,213 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-10 22:14:31,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-10 22:14:31,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-10 22:14:31,414 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:14:31,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:31,415 INFO L85 PathProgramCache]: Analyzing trace with hash 83800250, now seen corresponding path program 1 times [2024-11-10 22:14:31,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:31,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873767914] [2024-11-10 22:14:31,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:31,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:31,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:31,481 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-10 22:14:31,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:14:31,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873767914] [2024-11-10 22:14:31,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873767914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:14:31,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:14:31,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:14:31,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660859389] [2024-11-10 22:14:31,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:14:31,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:14:31,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:14:31,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:14:31,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:14:31,492 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 137 [2024-11-10 22:14:31,492 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 126 transitions, 383 flow. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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 22:14:31,492 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:14:31,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 137 [2024-11-10 22:14:31,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:14:32,810 INFO L124 PetriNetUnfolderBase]: 7997/12981 cut-off events. [2024-11-10 22:14:32,810 INFO L125 PetriNetUnfolderBase]: For 1326/2044 co-relation queries the response was YES. [2024-11-10 22:14:32,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25919 conditions, 12981 events. 7997/12981 cut-off events. For 1326/2044 co-relation queries the response was YES. Maximal size of possible extension queue 481. Compared 93669 event pairs, 6634 based on Foata normal form. 1/11927 useless extension candidates. Maximal degree in co-relation 25866. Up to 11700 conditions per place. [2024-11-10 22:14:32,853 INFO L140 encePairwiseOnDemand]: 132/137 looper letters, 78 selfloop transitions, 9 changer transitions 0/126 dead transitions. [2024-11-10 22:14:32,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 126 transitions, 555 flow [2024-11-10 22:14:32,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:14:32,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:14:32,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 257 transitions. [2024-11-10 22:14:32,855 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46897810218978103 [2024-11-10 22:14:32,855 INFO L175 Difference]: Start difference. First operand has 134 places, 126 transitions, 383 flow. Second operand 4 states and 257 transitions. [2024-11-10 22:14:32,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 126 transitions, 555 flow [2024-11-10 22:14:32,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 126 transitions, 534 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-10 22:14:32,857 INFO L231 Difference]: Finished difference. Result has 129 places, 126 transitions, 386 flow [2024-11-10 22:14:32,858 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=386, PETRI_PLACES=129, PETRI_TRANSITIONS=126} [2024-11-10 22:14:32,858 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 13 predicate places. [2024-11-10 22:14:32,858 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 126 transitions, 386 flow [2024-11-10 22:14:32,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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 22:14:32,859 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:32,859 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-10 22:14:32,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 22:14:32,859 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:14:32,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:32,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1782858593, now seen corresponding path program 2 times [2024-11-10 22:14:32,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:32,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342971023] [2024-11-10 22:14:32,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:32,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:32,947 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-10 22:14:32,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:14:32,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342971023] [2024-11-10 22:14:32,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342971023] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:14:32,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59872403] [2024-11-10 22:14:32,948 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 22:14:32,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:14:32,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:14:32,949 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:14:32,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 22:14:33,020 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 22:14:33,020 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:14:33,021 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:14:33,022 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:14:33,063 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-10 22:14:33,064 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:14:33,114 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-10 22:14:33,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59872403] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:14:33,114 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:14:33,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2024-11-10 22:14:33,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197918627] [2024-11-10 22:14:33,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:14:33,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 22:14:33,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:14:33,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 22:14:33,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-10 22:14:33,146 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 137 [2024-11-10 22:14:33,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 126 transitions, 386 flow. Second operand has 7 states, 7 states have (on average 43.57142857142857) internal successors, (305), 7 states have internal predecessors, (305), 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 22:14:33,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:14:33,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 137 [2024-11-10 22:14:33,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:14:34,110 INFO L124 PetriNetUnfolderBase]: 7997/12980 cut-off events. [2024-11-10 22:14:34,111 INFO L125 PetriNetUnfolderBase]: For 1138/1856 co-relation queries the response was YES. [2024-11-10 22:14:34,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25781 conditions, 12980 events. 7997/12980 cut-off events. For 1138/1856 co-relation queries the response was YES. Maximal size of possible extension queue 482. Compared 93519 event pairs, 6634 based on Foata normal form. 1/11926 useless extension candidates. Maximal degree in co-relation 25728. Up to 11691 conditions per place. [2024-11-10 22:14:34,149 INFO L140 encePairwiseOnDemand]: 131/137 looper letters, 81 selfloop transitions, 9 changer transitions 0/127 dead transitions. [2024-11-10 22:14:34,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 127 transitions, 564 flow [2024-11-10 22:14:34,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:14:34,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:14:34,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 240 transitions. [2024-11-10 22:14:34,150 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43795620437956206 [2024-11-10 22:14:34,150 INFO L175 Difference]: Start difference. First operand has 129 places, 126 transitions, 386 flow. Second operand 4 states and 240 transitions. [2024-11-10 22:14:34,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 127 transitions, 564 flow [2024-11-10 22:14:34,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 127 transitions, 544 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-10 22:14:34,153 INFO L231 Difference]: Finished difference. Result has 128 places, 126 transitions, 391 flow [2024-11-10 22:14:34,153 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=391, PETRI_PLACES=128, PETRI_TRANSITIONS=126} [2024-11-10 22:14:34,154 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 12 predicate places. [2024-11-10 22:14:34,154 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 126 transitions, 391 flow [2024-11-10 22:14:34,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 43.57142857142857) internal successors, (305), 7 states have internal predecessors, (305), 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 22:14:34,155 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:34,155 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:14:34,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-10 22:14:34,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:14:34,356 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:14:34,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:34,356 INFO L85 PathProgramCache]: Analyzing trace with hash -415442271, now seen corresponding path program 1 times [2024-11-10 22:14:34,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:34,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042021382] [2024-11-10 22:14:34,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:34,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:34,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:34,406 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-10 22:14:34,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:14:34,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042021382] [2024-11-10 22:14:34,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042021382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:14:34,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:14:34,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:14:34,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270517964] [2024-11-10 22:14:34,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:14:34,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:14:34,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:14:34,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:14:34,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:14:34,416 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 137 [2024-11-10 22:14:34,416 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 126 transitions, 391 flow. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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 22:14:34,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:14:34,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 137 [2024-11-10 22:14:34,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:14:35,932 INFO L124 PetriNetUnfolderBase]: 11597/18955 cut-off events. [2024-11-10 22:14:35,932 INFO L125 PetriNetUnfolderBase]: For 2063/2063 co-relation queries the response was YES. [2024-11-10 22:14:35,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38575 conditions, 18955 events. 11597/18955 cut-off events. For 2063/2063 co-relation queries the response was YES. Maximal size of possible extension queue 500. Compared 133756 event pairs, 6585 based on Foata normal form. 1/17572 useless extension candidates. Maximal degree in co-relation 38495. Up to 11565 conditions per place. [2024-11-10 22:14:35,982 INFO L140 encePairwiseOnDemand]: 129/137 looper letters, 129 selfloop transitions, 6 changer transitions 10/184 dead transitions. [2024-11-10 22:14:35,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 184 transitions, 787 flow [2024-11-10 22:14:35,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:14:35,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:14:35,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 272 transitions. [2024-11-10 22:14:35,983 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6618004866180048 [2024-11-10 22:14:35,983 INFO L175 Difference]: Start difference. First operand has 128 places, 126 transitions, 391 flow. Second operand 3 states and 272 transitions. [2024-11-10 22:14:35,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 184 transitions, 787 flow [2024-11-10 22:14:35,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 184 transitions, 776 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-10 22:14:35,987 INFO L231 Difference]: Finished difference. Result has 127 places, 116 transitions, 366 flow [2024-11-10 22:14:35,987 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=366, PETRI_PLACES=127, PETRI_TRANSITIONS=116} [2024-11-10 22:14:35,988 INFO L277 CegarLoopForPetriNet]: 116 programPoint places, 11 predicate places. [2024-11-10 22:14:35,988 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 116 transitions, 366 flow [2024-11-10 22:14:35,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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 22:14:35,988 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:35,988 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:14:35,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-10 22:14:35,988 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:14:35,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:35,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1655659871, now seen corresponding path program 1 times [2024-11-10 22:14:35,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:35,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543670959] [2024-11-10 22:14:35,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:35,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:14:36,019 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:14:36,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:14:36,038 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:14:36,039 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 22:14:36,039 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-10 22:14:36,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-10 22:14:36,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-10 22:14:36,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-10 22:14:36,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-10 22:14:36,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-10 22:14:36,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-10 22:14:36,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-10 22:14:36,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-11-10 22:14:36,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-10 22:14:36,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-10 22:14:36,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-10 22:14:36,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-10 22:14:36,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-10 22:14:36,040 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:14:36,041 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 22:14:36,041 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-10 22:14:36,077 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-10 22:14:36,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 181 transitions, 389 flow [2024-11-10 22:14:36,092 INFO L124 PetriNetUnfolderBase]: 52/280 cut-off events. [2024-11-10 22:14:36,092 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-10 22:14:36,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 280 events. 52/280 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1046 event pairs, 1 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 187. Up to 16 conditions per place. [2024-11-10 22:14:36,093 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 181 transitions, 389 flow [2024-11-10 22:14:36,095 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 181 transitions, 389 flow [2024-11-10 22:14:36,095 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:14:36,096 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;@78034cac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:14:36,096 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-10 22:14:36,096 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:14:36,097 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-11-10 22:14:36,097 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:14:36,097 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:36,097 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 22:14:36,097 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:14:36,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:36,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1793459294, now seen corresponding path program 1 times [2024-11-10 22:14:36,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:36,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338733810] [2024-11-10 22:14:36,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:36,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:36,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:36,125 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 22:14:36,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:14:36,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338733810] [2024-11-10 22:14:36,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338733810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:14:36,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:14:36,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 22:14:36,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626857793] [2024-11-10 22:14:36,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:14:36,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:14:36,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:14:36,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:14:36,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:14:36,136 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 181 [2024-11-10 22:14:36,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 181 transitions, 389 flow. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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 22:14:36,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:14:36,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 181 [2024-11-10 22:14:36,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand