./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bf26be9bd61f36f1b6136fc4e500a91a95d08528025fd00027577283116c4a35 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:04:38,236 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:04:38,313 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 14:04:38,318 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:04:38,319 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:04:38,343 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:04:38,344 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:04:38,344 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:04:38,345 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:04:38,349 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:04:38,349 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 14:04:38,350 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 14:04:38,350 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:04:38,350 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:04:38,351 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:04:38,351 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:04:38,351 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 14:04:38,352 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 14:04:38,352 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:04:38,352 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 14:04:38,352 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:04:38,354 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 14:04:38,355 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 14:04:38,355 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 14:04:38,355 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:04:38,356 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 14:04:38,356 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:04:38,356 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 14:04:38,356 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:04:38,357 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:04:38,357 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:04:38,357 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:04:38,358 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 14:04:38,358 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 14:04:38,359 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:04:38,359 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:04:38,360 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 14:04:38,360 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 14:04:38,360 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:04:38,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 14:04:38,360 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 14:04:38,361 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 14:04:38,361 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 14:04:38,361 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 14:04:38,362 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf26be9bd61f36f1b6136fc4e500a91a95d08528025fd00027577283116c4a35 [2024-11-19 14:04:38,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:04:38,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:04:38,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:04:38,644 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:04:38,645 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:04:38,646 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c [2024-11-19 14:04:40,043 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:04:40,265 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:04:40,267 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c [2024-11-19 14:04:40,278 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c23c44d19/011502c087ec4440a2be4fa958ffc84f/FLAGf8a6c95c0 [2024-11-19 14:04:40,299 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c23c44d19/011502c087ec4440a2be4fa958ffc84f [2024-11-19 14:04:40,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:04:40,303 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:04:40,307 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:04:40,307 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:04:40,312 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:04:40,313 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:04:40" (1/1) ... [2024-11-19 14:04:40,314 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4636bd7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:40, skipping insertion in model container [2024-11-19 14:04:40,314 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:04:40" (1/1) ... [2024-11-19 14:04:40,338 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:04:40,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:04:40,559 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:04:40,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:04:40,599 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:04:40,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:40 WrapperNode [2024-11-19 14:04:40,600 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:04:40,601 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:04:40,601 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:04:40,601 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:04:40,608 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:40" (1/1) ... [2024-11-19 14:04:40,616 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:40" (1/1) ... [2024-11-19 14:04:40,642 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 124 [2024-11-19 14:04:40,643 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:04:40,644 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:04:40,644 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:04:40,644 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:04:40,658 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:40" (1/1) ... [2024-11-19 14:04:40,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:40" (1/1) ... [2024-11-19 14:04:40,664 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:40" (1/1) ... [2024-11-19 14:04:40,685 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-19 14:04:40,685 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:40" (1/1) ... [2024-11-19 14:04:40,685 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:40" (1/1) ... [2024-11-19 14:04:40,696 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:40" (1/1) ... [2024-11-19 14:04:40,699 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:40" (1/1) ... [2024-11-19 14:04:40,705 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:40" (1/1) ... [2024-11-19 14:04:40,706 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:40" (1/1) ... [2024-11-19 14:04:40,710 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:04:40,712 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:04:40,712 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:04:40,712 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:04:40,713 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:40" (1/1) ... [2024-11-19 14:04:40,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:04:40,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:04:40,758 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) [2024-11-19 14:04:40,765 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 [2024-11-19 14:04:40,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 14:04:40,813 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 14:04:40,814 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 14:04:40,814 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 14:04:40,814 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 14:04:40,814 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-19 14:04:40,814 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-19 14:04:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 14:04:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 14:04:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 14:04:40,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 14:04:40,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 14:04:40,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:04:40,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:04:40,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 14:04:40,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 14:04:40,819 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 14:04:40,964 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:04:40,967 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:04:41,366 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 14:04:41,368 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:04:41,564 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:04:41,564 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-19 14:04:41,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:04:41 BoogieIcfgContainer [2024-11-19 14:04:41,565 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:04:41,568 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 14:04:41,569 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 14:04:41,572 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 14:04:41,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:04:40" (1/3) ... [2024-11-19 14:04:41,573 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75bb061d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:04:41, skipping insertion in model container [2024-11-19 14:04:41,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:40" (2/3) ... [2024-11-19 14:04:41,573 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75bb061d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:04:41, skipping insertion in model container [2024-11-19 14:04:41,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:04:41" (3/3) ... [2024-11-19 14:04:41,574 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-min-max-1.wvr.c [2024-11-19 14:04:41,592 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 14:04:41,592 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-19 14:04:41,592 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 14:04:41,662 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-19 14:04:41,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 65 transitions, 151 flow [2024-11-19 14:04:41,743 INFO L124 PetriNetUnfolderBase]: 5/62 cut-off events. [2024-11-19 14:04:41,743 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-19 14:04:41,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 62 events. 5/62 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 106 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2024-11-19 14:04:41,748 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 65 transitions, 151 flow [2024-11-19 14:04:41,753 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 59 transitions, 130 flow [2024-11-19 14:04:41,761 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 14:04:41,767 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;@775fc76b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 14:04:41,768 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-19 14:04:41,776 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 14:04:41,776 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-19 14:04:41,777 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 14:04:41,777 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:41,778 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:41,778 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 14:04:41,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:41,788 INFO L85 PathProgramCache]: Analyzing trace with hash 2081239604, now seen corresponding path program 1 times [2024-11-19 14:04:41,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:41,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395270186] [2024-11-19 14:04:41,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:41,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:41,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:42,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:42,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:42,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395270186] [2024-11-19 14:04:42,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395270186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:42,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:42,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:04:42,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340376978] [2024-11-19 14:04:42,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:42,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:42,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:42,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:42,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:04:42,179 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 65 [2024-11-19 14:04:42,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 59 transitions, 130 flow. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 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) [2024-11-19 14:04:42,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:42,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 65 [2024-11-19 14:04:42,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:42,530 INFO L124 PetriNetUnfolderBase]: 767/1429 cut-off events. [2024-11-19 14:04:42,530 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-11-19 14:04:42,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2591 conditions, 1429 events. 767/1429 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 8532 event pairs, 526 based on Foata normal form. 1/1029 useless extension candidates. Maximal degree in co-relation 2456. Up to 1028 conditions per place. [2024-11-19 14:04:42,550 INFO L140 encePairwiseOnDemand]: 59/65 looper letters, 31 selfloop transitions, 4 changer transitions 0/62 dead transitions. [2024-11-19 14:04:42,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 62 transitions, 206 flow [2024-11-19 14:04:42,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:04:42,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:04:42,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 157 transitions. [2024-11-19 14:04:42,564 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6038461538461538 [2024-11-19 14:04:42,566 INFO L175 Difference]: Start difference. First operand has 64 places, 59 transitions, 130 flow. Second operand 4 states and 157 transitions. [2024-11-19 14:04:42,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 62 transitions, 206 flow [2024-11-19 14:04:42,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 62 transitions, 200 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 14:04:42,575 INFO L231 Difference]: Finished difference. Result has 65 places, 62 transitions, 153 flow [2024-11-19 14:04:42,580 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=153, PETRI_PLACES=65, PETRI_TRANSITIONS=62} [2024-11-19 14:04:42,584 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 1 predicate places. [2024-11-19 14:04:42,584 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 62 transitions, 153 flow [2024-11-19 14:04:42,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 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) [2024-11-19 14:04:42,588 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:42,588 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:42,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 14:04:42,589 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 14:04:42,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:42,589 INFO L85 PathProgramCache]: Analyzing trace with hash 61605412, now seen corresponding path program 1 times [2024-11-19 14:04:42,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:42,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360951227] [2024-11-19 14:04:42,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:42,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:42,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:42,778 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:42,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:42,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360951227] [2024-11-19 14:04:42,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360951227] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:04:42,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819888187] [2024-11-19 14:04:42,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:42,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:42,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:04:42,782 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) [2024-11-19 14:04:42,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 14:04:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:42,929 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:04:42,934 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:04:42,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:42,990 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:04:42,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819888187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:42,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:04:42,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-19 14:04:42,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282037619] [2024-11-19 14:04:42,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:42,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:04:42,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:42,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:04:42,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 14:04:43,005 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 65 [2024-11-19 14:04:43,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 62 transitions, 153 flow. Second operand has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 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) [2024-11-19 14:04:43,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:43,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 65 [2024-11-19 14:04:43,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:43,261 INFO L124 PetriNetUnfolderBase]: 767/1428 cut-off events. [2024-11-19 14:04:43,261 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-19 14:04:43,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2585 conditions, 1428 events. 767/1428 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 8492 event pairs, 526 based on Foata normal form. 1/1029 useless extension candidates. Maximal degree in co-relation 2558. Up to 1023 conditions per place. [2024-11-19 14:04:43,272 INFO L140 encePairwiseOnDemand]: 60/65 looper letters, 27 selfloop transitions, 7 changer transitions 0/61 dead transitions. [2024-11-19 14:04:43,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 61 transitions, 217 flow [2024-11-19 14:04:43,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:04:43,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:04:43,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 215 transitions. [2024-11-19 14:04:43,277 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5512820512820513 [2024-11-19 14:04:43,278 INFO L175 Difference]: Start difference. First operand has 65 places, 62 transitions, 153 flow. Second operand 6 states and 215 transitions. [2024-11-19 14:04:43,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 61 transitions, 217 flow [2024-11-19 14:04:43,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 61 transitions, 214 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:04:43,281 INFO L231 Difference]: Finished difference. Result has 68 places, 61 transitions, 160 flow [2024-11-19 14:04:43,282 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=160, PETRI_PLACES=68, PETRI_TRANSITIONS=61} [2024-11-19 14:04:43,283 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 4 predicate places. [2024-11-19 14:04:43,283 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 61 transitions, 160 flow [2024-11-19 14:04:43,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.833333333333332) internal successors, (191), 6 states have internal predecessors, (191), 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) [2024-11-19 14:04:43,284 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:43,285 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:43,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 14:04:43,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:43,486 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 14:04:43,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:43,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1909768223, now seen corresponding path program 1 times [2024-11-19 14:04:43,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:43,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574308655] [2024-11-19 14:04:43,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:43,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:43,621 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:43,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:43,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574308655] [2024-11-19 14:04:43,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574308655] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:04:43,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259739991] [2024-11-19 14:04:43,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:43,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:43,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:04:43,625 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) [2024-11-19 14:04:43,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 14:04:43,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:43,705 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:04:43,706 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:04:43,739 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:43,739 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:04:43,789 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:43,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259739991] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:04:43,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:04:43,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-19 14:04:43,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994238636] [2024-11-19 14:04:43,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:04:43,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 14:04:43,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:43,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 14:04:43,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-19 14:04:43,819 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 65 [2024-11-19 14:04:43,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 61 transitions, 160 flow. Second operand has 12 states, 12 states have (on average 31.583333333333332) internal successors, (379), 12 states have internal predecessors, (379), 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) [2024-11-19 14:04:43,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:43,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 65 [2024-11-19 14:04:43,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:44,100 INFO L124 PetriNetUnfolderBase]: 770/1440 cut-off events. [2024-11-19 14:04:44,101 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-11-19 14:04:44,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2629 conditions, 1440 events. 770/1440 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 8628 event pairs, 526 based on Foata normal form. 3/1041 useless extension candidates. Maximal degree in co-relation 2559. Up to 1030 conditions per place. [2024-11-19 14:04:44,110 INFO L140 encePairwiseOnDemand]: 60/65 looper letters, 30 selfloop transitions, 13 changer transitions 0/70 dead transitions. [2024-11-19 14:04:44,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 70 transitions, 300 flow [2024-11-19 14:04:44,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 14:04:44,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 14:04:44,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 346 transitions. [2024-11-19 14:04:44,116 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5323076923076923 [2024-11-19 14:04:44,116 INFO L175 Difference]: Start difference. First operand has 68 places, 61 transitions, 160 flow. Second operand 10 states and 346 transitions. [2024-11-19 14:04:44,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 70 transitions, 300 flow [2024-11-19 14:04:44,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 70 transitions, 254 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-19 14:04:44,120 INFO L231 Difference]: Finished difference. Result has 75 places, 70 transitions, 212 flow [2024-11-19 14:04:44,121 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=212, PETRI_PLACES=75, PETRI_TRANSITIONS=70} [2024-11-19 14:04:44,122 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 11 predicate places. [2024-11-19 14:04:44,123 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 70 transitions, 212 flow [2024-11-19 14:04:44,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 31.583333333333332) internal successors, (379), 12 states have internal predecessors, (379), 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) [2024-11-19 14:04:44,123 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:44,123 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:44,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 14:04:44,324 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,SelfDestructingSolverStorable2 [2024-11-19 14:04:44,325 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 14:04:44,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:44,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1897721702, now seen corresponding path program 1 times [2024-11-19 14:04:44,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:44,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085196644] [2024-11-19 14:04:44,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:44,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:44,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:44,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:44,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085196644] [2024-11-19 14:04:44,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085196644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:44,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:44,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:04:44,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981110644] [2024-11-19 14:04:44,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:44,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:44,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:44,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:44,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:04:44,399 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 65 [2024-11-19 14:04:44,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 70 transitions, 212 flow. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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) [2024-11-19 14:04:44,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:44,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 65 [2024-11-19 14:04:44,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:44,687 INFO L124 PetriNetUnfolderBase]: 1553/2487 cut-off events. [2024-11-19 14:04:44,688 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-11-19 14:04:44,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4896 conditions, 2487 events. 1553/2487 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 13633 event pairs, 771 based on Foata normal form. 44/1950 useless extension candidates. Maximal degree in co-relation 4862. Up to 1450 conditions per place. [2024-11-19 14:04:44,704 INFO L140 encePairwiseOnDemand]: 59/65 looper letters, 72 selfloop transitions, 4 changer transitions 0/100 dead transitions. [2024-11-19 14:04:44,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 100 transitions, 432 flow [2024-11-19 14:04:44,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:04:44,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:04:44,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 178 transitions. [2024-11-19 14:04:44,706 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6846153846153846 [2024-11-19 14:04:44,706 INFO L175 Difference]: Start difference. First operand has 75 places, 70 transitions, 212 flow. Second operand 4 states and 178 transitions. [2024-11-19 14:04:44,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 100 transitions, 432 flow [2024-11-19 14:04:44,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 100 transitions, 421 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-19 14:04:44,710 INFO L231 Difference]: Finished difference. Result has 78 places, 73 transitions, 230 flow [2024-11-19 14:04:44,711 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=230, PETRI_PLACES=78, PETRI_TRANSITIONS=73} [2024-11-19 14:04:44,712 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 14 predicate places. [2024-11-19 14:04:44,712 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 73 transitions, 230 flow [2024-11-19 14:04:44,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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) [2024-11-19 14:04:44,713 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:44,713 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:44,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 14:04:44,713 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 14:04:44,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:44,714 INFO L85 PathProgramCache]: Analyzing trace with hash -2049891446, now seen corresponding path program 1 times [2024-11-19 14:04:44,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:44,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294515438] [2024-11-19 14:04:44,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:44,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:44,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:44,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:44,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:44,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294515438] [2024-11-19 14:04:44,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294515438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:44,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:44,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:04:44,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357530892] [2024-11-19 14:04:44,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:44,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:44,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:44,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:44,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:04:44,818 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 65 [2024-11-19 14:04:44,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 73 transitions, 230 flow. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 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) [2024-11-19 14:04:44,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:44,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 65 [2024-11-19 14:04:44,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:45,203 INFO L124 PetriNetUnfolderBase]: 2201/3508 cut-off events. [2024-11-19 14:04:45,203 INFO L125 PetriNetUnfolderBase]: For 407/660 co-relation queries the response was YES. [2024-11-19 14:04:45,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7542 conditions, 3508 events. 2201/3508 cut-off events. For 407/660 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 19647 event pairs, 1127 based on Foata normal form. 207/3150 useless extension candidates. Maximal degree in co-relation 7506. Up to 2038 conditions per place. [2024-11-19 14:04:45,231 INFO L140 encePairwiseOnDemand]: 59/65 looper letters, 76 selfloop transitions, 4 changer transitions 0/105 dead transitions. [2024-11-19 14:04:45,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 105 transitions, 480 flow [2024-11-19 14:04:45,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:04:45,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:04:45,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 176 transitions. [2024-11-19 14:04:45,234 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.676923076923077 [2024-11-19 14:04:45,234 INFO L175 Difference]: Start difference. First operand has 78 places, 73 transitions, 230 flow. Second operand 4 states and 176 transitions. [2024-11-19 14:04:45,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 105 transitions, 480 flow [2024-11-19 14:04:45,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 105 transitions, 473 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:04:45,240 INFO L231 Difference]: Finished difference. Result has 82 places, 76 transitions, 256 flow [2024-11-19 14:04:45,242 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=256, PETRI_PLACES=82, PETRI_TRANSITIONS=76} [2024-11-19 14:04:45,242 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 18 predicate places. [2024-11-19 14:04:45,242 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 76 transitions, 256 flow [2024-11-19 14:04:45,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 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) [2024-11-19 14:04:45,243 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:45,243 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:45,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 14:04:45,243 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 14:04:45,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:45,243 INFO L85 PathProgramCache]: Analyzing trace with hash 446341647, now seen corresponding path program 2 times [2024-11-19 14:04:45,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:45,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349441015] [2024-11-19 14:04:45,244 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:04:45,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:45,264 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:04:45,264 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:04:45,328 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 14:04:45,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:45,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349441015] [2024-11-19 14:04:45,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349441015] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:04:45,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531595133] [2024-11-19 14:04:45,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:04:45,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:45,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:04:45,333 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) [2024-11-19 14:04:45,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 14:04:45,407 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:04:45,407 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:04:45,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 14:04:45,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:04:45,452 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 14:04:45,453 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:04:45,512 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 14:04:45,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531595133] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:04:45,513 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:04:45,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-11-19 14:04:45,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484688351] [2024-11-19 14:04:45,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:04:45,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:04:45,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:45,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:04:45,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:04:45,528 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 65 [2024-11-19 14:04:45,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 76 transitions, 256 flow. Second operand has 6 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:45,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:45,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 65 [2024-11-19 14:04:45,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:45,848 INFO L124 PetriNetUnfolderBase]: 1552/2788 cut-off events. [2024-11-19 14:04:45,848 INFO L125 PetriNetUnfolderBase]: For 507/671 co-relation queries the response was YES. [2024-11-19 14:04:45,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6138 conditions, 2788 events. 1552/2788 cut-off events. For 507/671 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 17255 event pairs, 1127 based on Foata normal form. 117/2542 useless extension candidates. Maximal degree in co-relation 6105. Up to 2025 conditions per place. [2024-11-19 14:04:45,873 INFO L140 encePairwiseOnDemand]: 57/65 looper letters, 28 selfloop transitions, 19 changer transitions 0/75 dead transitions. [2024-11-19 14:04:45,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 75 transitions, 340 flow [2024-11-19 14:04:45,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:04:45,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:04:45,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 206 transitions. [2024-11-19 14:04:45,875 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5282051282051282 [2024-11-19 14:04:45,875 INFO L175 Difference]: Start difference. First operand has 82 places, 76 transitions, 256 flow. Second operand 6 states and 206 transitions. [2024-11-19 14:04:45,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 75 transitions, 340 flow [2024-11-19 14:04:45,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 75 transitions, 327 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-19 14:04:45,882 INFO L231 Difference]: Finished difference. Result has 81 places, 75 transitions, 271 flow [2024-11-19 14:04:45,882 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=271, PETRI_PLACES=81, PETRI_TRANSITIONS=75} [2024-11-19 14:04:45,884 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 17 predicate places. [2024-11-19 14:04:45,885 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 75 transitions, 271 flow [2024-11-19 14:04:45,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:45,885 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:45,886 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, 1, 1] [2024-11-19 14:04:45,903 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 14:04:46,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:46,087 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 14:04:46,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:46,087 INFO L85 PathProgramCache]: Analyzing trace with hash -2118417346, now seen corresponding path program 1 times [2024-11-19 14:04:46,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:46,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380341739] [2024-11-19 14:04:46,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:46,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:46,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:46,187 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 14:04:46,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:46,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380341739] [2024-11-19 14:04:46,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380341739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:46,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:46,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 14:04:46,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291689054] [2024-11-19 14:04:46,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:46,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:46,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:46,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:46,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:04:46,192 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 65 [2024-11-19 14:04:46,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 75 transitions, 271 flow. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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) [2024-11-19 14:04:46,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:46,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 65 [2024-11-19 14:04:46,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:46,440 INFO L124 PetriNetUnfolderBase]: 1551/2787 cut-off events. [2024-11-19 14:04:46,441 INFO L125 PetriNetUnfolderBase]: For 507/671 co-relation queries the response was YES. [2024-11-19 14:04:46,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6020 conditions, 2787 events. 1551/2787 cut-off events. For 507/671 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 17226 event pairs, 1127 based on Foata normal form. 116/2537 useless extension candidates. Maximal degree in co-relation 5922. Up to 2031 conditions per place. [2024-11-19 14:04:46,460 INFO L140 encePairwiseOnDemand]: 61/65 looper letters, 43 selfloop transitions, 3 changer transitions 0/74 dead transitions. [2024-11-19 14:04:46,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 74 transitions, 358 flow [2024-11-19 14:04:46,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:04:46,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:04:46,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 158 transitions. [2024-11-19 14:04:46,462 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6076923076923076 [2024-11-19 14:04:46,462 INFO L175 Difference]: Start difference. First operand has 81 places, 75 transitions, 271 flow. Second operand 4 states and 158 transitions. [2024-11-19 14:04:46,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 74 transitions, 358 flow [2024-11-19 14:04:46,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 74 transitions, 322 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 14:04:46,466 INFO L231 Difference]: Finished difference. Result has 79 places, 74 transitions, 236 flow [2024-11-19 14:04:46,466 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=236, PETRI_PLACES=79, PETRI_TRANSITIONS=74} [2024-11-19 14:04:46,467 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 15 predicate places. [2024-11-19 14:04:46,467 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 74 transitions, 236 flow [2024-11-19 14:04:46,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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) [2024-11-19 14:04:46,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:46,467 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, 1, 1, 1, 1, 1] [2024-11-19 14:04:46,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 14:04:46,468 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 14:04:46,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:46,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1931523118, now seen corresponding path program 1 times [2024-11-19 14:04:46,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:46,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238972831] [2024-11-19 14:04:46,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:46,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:46,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:46,551 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:04:46,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:46,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238972831] [2024-11-19 14:04:46,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238972831] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:04:46,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209095623] [2024-11-19 14:04:46,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:46,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:46,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:04:46,554 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) [2024-11-19 14:04:46,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 14:04:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:46,640 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-19 14:04:46,641 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:04:46,766 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:46,766 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:04:46,898 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:46,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209095623] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:04:46,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:04:46,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-11-19 14:04:46,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825077673] [2024-11-19 14:04:46,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:04:46,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-19 14:04:46,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:46,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-19 14:04:46,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-19 14:04:46,980 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 65 [2024-11-19 14:04:46,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 74 transitions, 236 flow. Second operand has 19 states, 19 states have (on average 27.473684210526315) internal successors, (522), 19 states have internal predecessors, (522), 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) [2024-11-19 14:04:46,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:46,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 65 [2024-11-19 14:04:46,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:48,059 INFO L124 PetriNetUnfolderBase]: 3333/5308 cut-off events. [2024-11-19 14:04:48,059 INFO L125 PetriNetUnfolderBase]: For 1017/1438 co-relation queries the response was YES. [2024-11-19 14:04:48,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12089 conditions, 5308 events. 3333/5308 cut-off events. For 1017/1438 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 32223 event pairs, 630 based on Foata normal form. 341/5025 useless extension candidates. Maximal degree in co-relation 12050. Up to 822 conditions per place. [2024-11-19 14:04:48,093 INFO L140 encePairwiseOnDemand]: 53/65 looper letters, 147 selfloop transitions, 25 changer transitions 4/199 dead transitions. [2024-11-19 14:04:48,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 199 transitions, 946 flow [2024-11-19 14:04:48,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 14:04:48,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-19 14:04:48,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 504 transitions. [2024-11-19 14:04:48,096 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5538461538461539 [2024-11-19 14:04:48,096 INFO L175 Difference]: Start difference. First operand has 79 places, 74 transitions, 236 flow. Second operand 14 states and 504 transitions. [2024-11-19 14:04:48,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 199 transitions, 946 flow [2024-11-19 14:04:48,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 199 transitions, 940 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:04:48,107 INFO L231 Difference]: Finished difference. Result has 89 places, 78 transitions, 302 flow [2024-11-19 14:04:48,107 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=302, PETRI_PLACES=89, PETRI_TRANSITIONS=78} [2024-11-19 14:04:48,108 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 25 predicate places. [2024-11-19 14:04:48,108 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 78 transitions, 302 flow [2024-11-19 14:04:48,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 27.473684210526315) internal successors, (522), 19 states have internal predecessors, (522), 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) [2024-11-19 14:04:48,109 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:48,109 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:48,127 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 14:04:48,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:48,314 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 14:04:48,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:48,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1688838905, now seen corresponding path program 1 times [2024-11-19 14:04:48,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:48,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827138382] [2024-11-19 14:04:48,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:48,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:48,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:48,401 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:04:48,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:48,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827138382] [2024-11-19 14:04:48,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827138382] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:04:48,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682557248] [2024-11-19 14:04:48,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:48,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:48,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:04:48,407 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) [2024-11-19 14:04:48,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 14:04:48,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:48,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-19 14:04:48,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:04:48,646 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:48,646 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:04:48,788 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:48,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682557248] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:04:48,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:04:48,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-11-19 14:04:48,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940553176] [2024-11-19 14:04:48,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:04:48,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-19 14:04:48,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:48,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-19 14:04:48,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-19 14:04:48,899 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 65 [2024-11-19 14:04:48,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 78 transitions, 302 flow. Second operand has 19 states, 19 states have (on average 27.68421052631579) internal successors, (526), 19 states have internal predecessors, (526), 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) [2024-11-19 14:04:48,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:48,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 65 [2024-11-19 14:04:48,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:49,951 INFO L124 PetriNetUnfolderBase]: 3149/5096 cut-off events. [2024-11-19 14:04:49,952 INFO L125 PetriNetUnfolderBase]: For 2601/2667 co-relation queries the response was YES. [2024-11-19 14:04:49,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12498 conditions, 5096 events. 3149/5096 cut-off events. For 2601/2667 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 31197 event pairs, 615 based on Foata normal form. 114/4619 useless extension candidates. Maximal degree in co-relation 8885. Up to 902 conditions per place. [2024-11-19 14:04:49,983 INFO L140 encePairwiseOnDemand]: 53/65 looper letters, 95 selfloop transitions, 19 changer transitions 57/193 dead transitions. [2024-11-19 14:04:49,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 193 transitions, 1045 flow [2024-11-19 14:04:49,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 14:04:49,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-19 14:04:49,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 497 transitions. [2024-11-19 14:04:49,986 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5461538461538461 [2024-11-19 14:04:49,986 INFO L175 Difference]: Start difference. First operand has 89 places, 78 transitions, 302 flow. Second operand 14 states and 497 transitions. [2024-11-19 14:04:49,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 193 transitions, 1045 flow [2024-11-19 14:04:49,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 193 transitions, 968 flow, removed 11 selfloop flow, removed 7 redundant places. [2024-11-19 14:04:49,997 INFO L231 Difference]: Finished difference. Result has 95 places, 71 transitions, 272 flow [2024-11-19 14:04:49,997 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=272, PETRI_PLACES=95, PETRI_TRANSITIONS=71} [2024-11-19 14:04:49,998 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 31 predicate places. [2024-11-19 14:04:49,999 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 71 transitions, 272 flow [2024-11-19 14:04:49,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 27.68421052631579) internal successors, (526), 19 states have internal predecessors, (526), 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) [2024-11-19 14:04:49,999 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:49,999 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 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, 1] [2024-11-19 14:04:50,018 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 14:04:50,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:50,204 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 14:04:50,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:50,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1264683905, now seen corresponding path program 1 times [2024-11-19 14:04:50,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:50,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295125274] [2024-11-19 14:04:50,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:50,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:50,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:50,285 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 14:04:50,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:50,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295125274] [2024-11-19 14:04:50,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295125274] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:04:50,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480001238] [2024-11-19 14:04:50,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:50,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:50,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:04:50,288 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) [2024-11-19 14:04:50,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 14:04:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:50,380 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:04:50,381 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:04:50,405 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 14:04:50,405 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:04:50,447 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 14:04:50,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480001238] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:04:50,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:04:50,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-19 14:04:50,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883127747] [2024-11-19 14:04:50,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:04:50,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 14:04:50,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:50,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 14:04:50,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-19 14:04:50,464 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 65 [2024-11-19 14:04:50,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 71 transitions, 272 flow. Second operand has 12 states, 12 states have (on average 30.916666666666668) internal successors, (371), 12 states have internal predecessors, (371), 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) [2024-11-19 14:04:50,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:50,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 65 [2024-11-19 14:04:50,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:51,295 INFO L124 PetriNetUnfolderBase]: 4694/7359 cut-off events. [2024-11-19 14:04:51,295 INFO L125 PetriNetUnfolderBase]: For 3961/4093 co-relation queries the response was YES. [2024-11-19 14:04:51,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18385 conditions, 7359 events. 4694/7359 cut-off events. For 3961/4093 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 43210 event pairs, 1275 based on Foata normal form. 204/6739 useless extension candidates. Maximal degree in co-relation 18290. Up to 2356 conditions per place. [2024-11-19 14:04:51,342 INFO L140 encePairwiseOnDemand]: 60/65 looper letters, 168 selfloop transitions, 13 changer transitions 0/204 dead transitions. [2024-11-19 14:04:51,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 204 transitions, 1108 flow [2024-11-19 14:04:51,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 14:04:51,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 14:04:51,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 436 transitions. [2024-11-19 14:04:51,344 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6707692307692308 [2024-11-19 14:04:51,344 INFO L175 Difference]: Start difference. First operand has 95 places, 71 transitions, 272 flow. Second operand 10 states and 436 transitions. [2024-11-19 14:04:51,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 204 transitions, 1108 flow [2024-11-19 14:04:51,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 204 transitions, 1002 flow, removed 24 selfloop flow, removed 11 redundant places. [2024-11-19 14:04:51,356 INFO L231 Difference]: Finished difference. Result has 90 places, 80 transitions, 324 flow [2024-11-19 14:04:51,357 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=324, PETRI_PLACES=90, PETRI_TRANSITIONS=80} [2024-11-19 14:04:51,358 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 26 predicate places. [2024-11-19 14:04:51,358 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 80 transitions, 324 flow [2024-11-19 14:04:51,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 30.916666666666668) internal successors, (371), 12 states have internal predecessors, (371), 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) [2024-11-19 14:04:51,358 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:51,358 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 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, 1, 1, 1] [2024-11-19 14:04:51,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-19 14:04:51,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:51,563 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 14:04:51,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:51,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1628947931, now seen corresponding path program 1 times [2024-11-19 14:04:51,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:51,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992768215] [2024-11-19 14:04:51,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:51,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:51,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:51,709 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 14:04:51,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:51,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992768215] [2024-11-19 14:04:51,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992768215] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:04:51,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551987218] [2024-11-19 14:04:51,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:51,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:51,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:04:51,712 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) [2024-11-19 14:04:51,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 14:04:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:51,802 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:04:51,803 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:04:51,831 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 14:04:51,831 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:04:51,870 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 14:04:51,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551987218] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:04:51,871 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:04:51,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-19 14:04:51,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335700154] [2024-11-19 14:04:51,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:04:51,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 14:04:51,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:51,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 14:04:51,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-19 14:04:51,885 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 65 [2024-11-19 14:04:51,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 80 transitions, 324 flow. Second operand has 12 states, 12 states have (on average 31.083333333333332) internal successors, (373), 12 states have internal predecessors, (373), 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) [2024-11-19 14:04:51,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:51,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 65 [2024-11-19 14:04:51,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:53,394 INFO L124 PetriNetUnfolderBase]: 10352/15804 cut-off events. [2024-11-19 14:04:53,395 INFO L125 PetriNetUnfolderBase]: For 11065/11341 co-relation queries the response was YES. [2024-11-19 14:04:53,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39419 conditions, 15804 events. 10352/15804 cut-off events. For 11065/11341 co-relation queries the response was YES. Maximal size of possible extension queue 365. Compared 95703 event pairs, 2663 based on Foata normal form. 426/14516 useless extension candidates. Maximal degree in co-relation 39331. Up to 4966 conditions per place. [2024-11-19 14:04:53,509 INFO L140 encePairwiseOnDemand]: 60/65 looper letters, 214 selfloop transitions, 13 changer transitions 0/253 dead transitions. [2024-11-19 14:04:53,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 253 transitions, 1580 flow [2024-11-19 14:04:53,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 14:04:53,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 14:04:53,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 428 transitions. [2024-11-19 14:04:53,512 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6584615384615384 [2024-11-19 14:04:53,512 INFO L175 Difference]: Start difference. First operand has 90 places, 80 transitions, 324 flow. Second operand 10 states and 428 transitions. [2024-11-19 14:04:53,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 253 transitions, 1580 flow [2024-11-19 14:04:53,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 253 transitions, 1505 flow, removed 27 selfloop flow, removed 2 redundant places. [2024-11-19 14:04:53,537 INFO L231 Difference]: Finished difference. Result has 100 places, 89 transitions, 399 flow [2024-11-19 14:04:53,538 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=399, PETRI_PLACES=100, PETRI_TRANSITIONS=89} [2024-11-19 14:04:53,538 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 36 predicate places. [2024-11-19 14:04:53,538 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 89 transitions, 399 flow [2024-11-19 14:04:53,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 31.083333333333332) internal successors, (373), 12 states have internal predecessors, (373), 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) [2024-11-19 14:04:53,539 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:53,539 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:53,556 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 14:04:53,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:53,740 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 14:04:53,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:53,741 INFO L85 PathProgramCache]: Analyzing trace with hash -709383335, now seen corresponding path program 2 times [2024-11-19 14:04:53,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:53,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308301045] [2024-11-19 14:04:53,741 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:04:53,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:53,763 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:04:53,764 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:04:53,818 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-19 14:04:53,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:53,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308301045] [2024-11-19 14:04:53,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308301045] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:04:53,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418636062] [2024-11-19 14:04:53,819 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:04:53,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:53,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:04:53,821 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:04:53,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 14:04:53,902 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:04:53,902 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:04:53,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:04:53,904 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:04:53,975 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-19 14:04:53,975 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:04:54,037 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-19 14:04:54,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418636062] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:04:54,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:04:54,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-11-19 14:04:54,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281198060] [2024-11-19 14:04:54,038 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:04:54,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:04:54,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:54,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:04:54,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:04:54,051 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 65 [2024-11-19 14:04:54,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 89 transitions, 399 flow. Second operand has 6 states, 6 states have (on average 30.666666666666668) internal successors, (184), 6 states have internal predecessors, (184), 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) [2024-11-19 14:04:54,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:54,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 65 [2024-11-19 14:04:54,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:55,300 INFO L124 PetriNetUnfolderBase]: 9978/15173 cut-off events. [2024-11-19 14:04:55,300 INFO L125 PetriNetUnfolderBase]: For 13674/13920 co-relation queries the response was YES. [2024-11-19 14:04:55,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39845 conditions, 15173 events. 9978/15173 cut-off events. For 13674/13920 co-relation queries the response was YES. Maximal size of possible extension queue 365. Compared 93318 event pairs, 2171 based on Foata normal form. 140/13529 useless extension candidates. Maximal degree in co-relation 39752. Up to 6976 conditions per place. [2024-11-19 14:04:55,384 INFO L140 encePairwiseOnDemand]: 56/65 looper letters, 88 selfloop transitions, 16 changer transitions 0/129 dead transitions. [2024-11-19 14:04:55,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 129 transitions, 789 flow [2024-11-19 14:04:55,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:04:55,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:04:55,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 222 transitions. [2024-11-19 14:04:55,385 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5692307692307692 [2024-11-19 14:04:55,385 INFO L175 Difference]: Start difference. First operand has 100 places, 89 transitions, 399 flow. Second operand 6 states and 222 transitions. [2024-11-19 14:04:55,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 129 transitions, 789 flow [2024-11-19 14:04:55,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 129 transitions, 752 flow, removed 10 selfloop flow, removed 6 redundant places. [2024-11-19 14:04:55,465 INFO L231 Difference]: Finished difference. Result has 99 places, 89 transitions, 415 flow [2024-11-19 14:04:55,466 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=415, PETRI_PLACES=99, PETRI_TRANSITIONS=89} [2024-11-19 14:04:55,468 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 35 predicate places. [2024-11-19 14:04:55,468 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 89 transitions, 415 flow [2024-11-19 14:04:55,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.666666666666668) internal successors, (184), 6 states have internal predecessors, (184), 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) [2024-11-19 14:04:55,468 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:55,469 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:55,485 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-19 14:04:55,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-19 14:04:55,669 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 14:04:55,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:55,670 INFO L85 PathProgramCache]: Analyzing trace with hash 267610884, now seen corresponding path program 2 times [2024-11-19 14:04:55,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:55,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045375665] [2024-11-19 14:04:55,670 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:04:55,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:55,690 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:04:55,691 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:04:55,753 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-19 14:04:55,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:55,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045375665] [2024-11-19 14:04:55,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045375665] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:04:55,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001126927] [2024-11-19 14:04:55,756 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:04:55,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:55,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:04:55,757 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:04:55,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 14:04:55,837 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:04:55,837 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:04:55,838 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:04:55,840 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:04:55,894 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-19 14:04:55,894 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:04:55,969 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-19 14:04:55,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001126927] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:04:55,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:04:55,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-11-19 14:04:55,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924728218] [2024-11-19 14:04:55,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:04:55,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:04:55,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:55,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:04:55,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:04:55,983 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 65 [2024-11-19 14:04:55,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 89 transitions, 415 flow. Second operand has 6 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:55,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:55,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 65 [2024-11-19 14:04:55,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:57,067 INFO L124 PetriNetUnfolderBase]: 10022/15232 cut-off events. [2024-11-19 14:04:57,068 INFO L125 PetriNetUnfolderBase]: For 18233/18540 co-relation queries the response was YES. [2024-11-19 14:04:57,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41199 conditions, 15232 events. 10022/15232 cut-off events. For 18233/18540 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 92139 event pairs, 2111 based on Foata normal form. 311/13865 useless extension candidates. Maximal degree in co-relation 41104. Up to 7072 conditions per place. [2024-11-19 14:04:57,110 INFO L140 encePairwiseOnDemand]: 56/65 looper letters, 0 selfloop transitions, 0 changer transitions 129/129 dead transitions. [2024-11-19 14:04:57,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 129 transitions, 823 flow [2024-11-19 14:04:57,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:04:57,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:04:57,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 220 transitions. [2024-11-19 14:04:57,112 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5641025641025641 [2024-11-19 14:04:57,112 INFO L175 Difference]: Start difference. First operand has 99 places, 89 transitions, 415 flow. Second operand 6 states and 220 transitions. [2024-11-19 14:04:57,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 129 transitions, 823 flow [2024-11-19 14:04:57,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 129 transitions, 778 flow, removed 1 selfloop flow, removed 8 redundant places. [2024-11-19 14:04:57,166 INFO L231 Difference]: Finished difference. Result has 95 places, 0 transitions, 0 flow [2024-11-19 14:04:57,166 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=95, PETRI_TRANSITIONS=0} [2024-11-19 14:04:57,166 INFO L277 CegarLoopForPetriNet]: 64 programPoint places, 31 predicate places. [2024-11-19 14:04:57,167 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 0 transitions, 0 flow [2024-11-19 14:04:57,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:57,169 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2024-11-19 14:04:57,170 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-19 14:04:57,170 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-19 14:04:57,170 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-19 14:04:57,170 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-19 14:04:57,170 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-19 14:04:57,170 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2024-11-19 14:04:57,170 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 13 remaining) [2024-11-19 14:04:57,170 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2024-11-19 14:04:57,171 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-19 14:04:57,171 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-19 14:04:57,171 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-19 14:04:57,171 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-19 14:04:57,187 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-19 14:04:57,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-19 14:04:57,372 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:57,378 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 14:04:57,378 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 14:04:57,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:04:57 BasicIcfg [2024-11-19 14:04:57,385 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 14:04:57,385 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 14:04:57,385 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 14:04:57,386 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 14:04:57,386 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:04:41" (3/4) ... [2024-11-19 14:04:57,388 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 14:04:57,391 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-19 14:04:57,391 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-19 14:04:57,391 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-19 14:04:57,400 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 106 nodes and edges [2024-11-19 14:04:57,401 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2024-11-19 14:04:57,402 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-19 14:04:57,402 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-19 14:04:57,501 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 14:04:57,502 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 14:04:57,502 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 14:04:57,502 INFO L158 Benchmark]: Toolchain (without parser) took 17200.08ms. Allocated memory was 146.8MB in the beginning and 2.3GB in the end (delta: 2.1GB). Free memory was 92.3MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 449.7MB. Max. memory is 16.1GB. [2024-11-19 14:04:57,503 INFO L158 Benchmark]: CDTParser took 0.85ms. Allocated memory is still 146.8MB. Free memory was 106.2MB in the beginning and 106.1MB in the end (delta: 73.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 14:04:57,503 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.48ms. Allocated memory is still 146.8MB. Free memory was 91.9MB in the beginning and 78.3MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-19 14:04:57,503 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.00ms. Allocated memory is still 146.8MB. Free memory was 78.3MB in the beginning and 76.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 14:04:57,504 INFO L158 Benchmark]: Boogie Preprocessor took 67.16ms. Allocated memory is still 146.8MB. Free memory was 76.3MB in the beginning and 73.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 14:04:57,504 INFO L158 Benchmark]: RCFGBuilder took 853.69ms. Allocated memory was 146.8MB in the beginning and 220.2MB in the end (delta: 73.4MB). Free memory was 73.7MB in the beginning and 167.6MB in the end (delta: -93.9MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2024-11-19 14:04:57,504 INFO L158 Benchmark]: TraceAbstraction took 15816.29ms. Allocated memory was 220.2MB in the beginning and 2.3GB in the end (delta: 2.1GB). Free memory was 166.5MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 612.2MB. Max. memory is 16.1GB. [2024-11-19 14:04:57,504 INFO L158 Benchmark]: Witness Printer took 116.74ms. Allocated memory is still 2.3GB. Free memory was 1.8GB in the beginning and 1.8GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 14:04:57,506 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85ms. Allocated memory is still 146.8MB. Free memory was 106.2MB in the beginning and 106.1MB in the end (delta: 73.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 293.48ms. Allocated memory is still 146.8MB. Free memory was 91.9MB in the beginning and 78.3MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.00ms. Allocated memory is still 146.8MB. Free memory was 78.3MB in the beginning and 76.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.16ms. Allocated memory is still 146.8MB. Free memory was 76.3MB in the beginning and 73.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 853.69ms. Allocated memory was 146.8MB in the beginning and 220.2MB in the end (delta: 73.4MB). Free memory was 73.7MB in the beginning and 167.6MB in the end (delta: -93.9MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * TraceAbstraction took 15816.29ms. Allocated memory was 220.2MB in the beginning and 2.3GB in the end (delta: 2.1GB). Free memory was 166.5MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 612.2MB. Max. memory is 16.1GB. * Witness Printer took 116.74ms. Allocated memory is still 2.3GB. Free memory was 1.8GB in the beginning and 1.8GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 111]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 111]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 96 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 15.7s, OverallIterations: 13, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 10.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1036 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 988 mSDsluCounter, 695 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 672 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4494 IncrementalHoareTripleChecker+Invalid, 4531 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 23 mSDtfsCounter, 4494 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 677 GetRequests, 540 SyntacticMatches, 11 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=415occurred in iteration=12, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 712 NumberOfCodeBlocks, 584 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 973 ConstructedInterpolants, 0 QuantifiedInterpolants, 2208 SizeOfPredicates, 32 NumberOfNonLiveVariables, 1179 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 30 InterpolantComputations, 5 PerfectInterpolantSequences, 354/527 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-19 14:04:57,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE