./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-lamport.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-lamport.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1 --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 7641d1105b9de7b20c96680ae1baa82cbf27158c037dacb66ff49f347bd2fa94 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:04:29,540 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:04:29,594 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-02 07:04:29,599 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:04:29,599 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:04:29,620 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:04:29,620 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:04:29,620 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:04:29,621 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:04:29,621 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:04:29,621 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:04:29,621 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:04:29,621 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:04:29,621 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:04:29,621 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:04:29,622 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:04:29,622 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:04:29,622 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:04:29,622 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:04:29,622 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:04:29,622 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:04:29,622 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:04:29,622 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:04:29,622 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:04:29,622 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 07:04:29,622 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 07:04:29,622 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:04:29,623 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:04:29,623 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:04:29,623 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:04:29,623 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:04:29,623 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:04:29,623 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:04:29,623 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:04:29,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:04:29,623 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:04:29,623 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:04:29,623 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:04:29,623 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:04:29,624 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:04:29,624 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:04:29,624 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:04:29,624 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:04:29,624 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:04:29,624 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:04:29,624 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:04:29,624 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:04:29,624 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:04:29,624 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:04:29,624 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:04:29,624 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1 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 -> 7641d1105b9de7b20c96680ae1baa82cbf27158c037dacb66ff49f347bd2fa94 [2024-12-02 07:04:29,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:04:29,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:04:29,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:04:29,865 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:04:29,865 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:04:29,866 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/weaver/parallel-lamport.wvr.c [2024-12-02 07:04:32,452 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/data/3de4c09fa/62edc7e5c2f147a8b77cbba4487c2b0a/FLAG4dceeca54 [2024-12-02 07:04:32,663 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:04:32,664 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/sv-benchmarks/c/weaver/parallel-lamport.wvr.c [2024-12-02 07:04:32,672 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/data/3de4c09fa/62edc7e5c2f147a8b77cbba4487c2b0a/FLAG4dceeca54 [2024-12-02 07:04:33,035 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/data/3de4c09fa/62edc7e5c2f147a8b77cbba4487c2b0a [2024-12-02 07:04:33,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:04:33,038 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:04:33,039 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:04:33,039 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:04:33,042 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:04:33,042 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:04:33" (1/1) ... [2024-12-02 07:04:33,043 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@340172eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:33, skipping insertion in model container [2024-12-02 07:04:33,043 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:04:33" (1/1) ... [2024-12-02 07:04:33,056 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:04:33,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:04:33,200 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:04:33,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:04:33,236 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:04:33,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:33 WrapperNode [2024-12-02 07:04:33,236 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:04:33,237 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:04:33,237 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:04:33,237 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:04:33,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:33" (1/1) ... [2024-12-02 07:04:33,248 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:33" (1/1) ... [2024-12-02 07:04:33,269 INFO L138 Inliner]: procedures = 22, calls = 30, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 214 [2024-12-02 07:04:33,269 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:04:33,270 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:04:33,270 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:04:33,270 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:04:33,276 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:33" (1/1) ... [2024-12-02 07:04:33,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:33" (1/1) ... [2024-12-02 07:04:33,279 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:33" (1/1) ... [2024-12-02 07:04:33,293 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 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]. [2024-12-02 07:04:33,293 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:33" (1/1) ... [2024-12-02 07:04:33,293 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:33" (1/1) ... [2024-12-02 07:04:33,300 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:33" (1/1) ... [2024-12-02 07:04:33,301 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:33" (1/1) ... [2024-12-02 07:04:33,304 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:33" (1/1) ... [2024-12-02 07:04:33,306 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:33" (1/1) ... [2024-12-02 07:04:33,307 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:33" (1/1) ... [2024-12-02 07:04:33,309 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:04:33,310 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:04:33,310 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:04:33,310 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:04:33,311 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:33" (1/1) ... [2024-12-02 07:04:33,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:04:33,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:04:33,334 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:04:33,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:04:33,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:04:33,355 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-02 07:04:33,356 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-02 07:04:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-02 07:04:33,356 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-02 07:04:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-12-02 07:04:33,356 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-12-02 07:04:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:04:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 07:04:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 07:04:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 07:04:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 07:04:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:04:33,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:04:33,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 07:04:33,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 07:04:33,358 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 07:04:33,444 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:04:33,445 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:04:33,740 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 07:04:33,740 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:04:33,915 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:04:33,915 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 07:04:33,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:04:33 BoogieIcfgContainer [2024-12-02 07:04:33,916 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:04:33,918 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:04:33,918 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:04:33,923 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:04:33,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:04:33" (1/3) ... [2024-12-02 07:04:33,923 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c8694a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:04:33, skipping insertion in model container [2024-12-02 07:04:33,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:04:33" (2/3) ... [2024-12-02 07:04:33,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c8694a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:04:33, skipping insertion in model container [2024-12-02 07:04:33,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:04:33" (3/3) ... [2024-12-02 07:04:33,925 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-lamport.wvr.c [2024-12-02 07:04:33,950 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:04:33,951 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-lamport.wvr.c that has 4 procedures, 70 locations, 1 initial locations, 1 loop locations, and 6 error locations. [2024-12-02 07:04:33,951 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 07:04:33,997 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-12-02 07:04:34,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 70 transitions, 161 flow [2024-12-02 07:04:34,058 INFO L124 PetriNetUnfolderBase]: 1/67 cut-off events. [2024-12-02 07:04:34,060 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-12-02 07:04:34,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 67 events. 1/67 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 90 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2024-12-02 07:04:34,062 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 70 transitions, 161 flow [2024-12-02 07:04:34,065 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 64 transitions, 140 flow [2024-12-02 07:04:34,071 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:04:34,082 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;@35fcdeaf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:04:34,082 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-12-02 07:04:34,086 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 07:04:34,087 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-12-02 07:04:34,087 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 07:04:34,087 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:04:34,087 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:04:34,088 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-12-02 07:04:34,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:34,092 INFO L85 PathProgramCache]: Analyzing trace with hash 511992102, now seen corresponding path program 1 times [2024-12-02 07:04:34,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:34,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45246283] [2024-12-02 07:04:34,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:34,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:34,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:34,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:04:34,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45246283] [2024-12-02 07:04:34,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45246283] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:04:34,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:04:34,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:04:34,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746315028] [2024-12-02 07:04:34,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:04:34,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:04:34,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:04:34,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:04:34,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:04:34,358 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 70 [2024-12-02 07:04:34,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 64 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 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) [2024-12-02 07:04:34,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:04:34,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 70 [2024-12-02 07:04:34,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:04:34,583 INFO L124 PetriNetUnfolderBase]: 305/637 cut-off events. [2024-12-02 07:04:34,583 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-12-02 07:04:34,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1202 conditions, 637 events. 305/637 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3693 event pairs, 303 based on Foata normal form. 1/569 useless extension candidates. Maximal degree in co-relation 1056. Up to 501 conditions per place. [2024-12-02 07:04:34,589 INFO L140 encePairwiseOnDemand]: 64/70 looper letters, 27 selfloop transitions, 4 changer transitions 0/67 dead transitions. [2024-12-02 07:04:34,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 67 transitions, 208 flow [2024-12-02 07:04:34,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:04:34,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 07:04:34,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 189 transitions. [2024-12-02 07:04:34,599 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.675 [2024-12-02 07:04:34,600 INFO L175 Difference]: Start difference. First operand has 73 places, 64 transitions, 140 flow. Second operand 4 states and 189 transitions. [2024-12-02 07:04:34,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 67 transitions, 208 flow [2024-12-02 07:04:34,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 67 transitions, 202 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-12-02 07:04:34,609 INFO L231 Difference]: Finished difference. Result has 74 places, 67 transitions, 163 flow [2024-12-02 07:04:34,611 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=163, PETRI_PLACES=74, PETRI_TRANSITIONS=67} [2024-12-02 07:04:34,614 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 1 predicate places. [2024-12-02 07:04:34,614 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 67 transitions, 163 flow [2024-12-02 07:04:34,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 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) [2024-12-02 07:04:34,614 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:04:34,614 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:04:34,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 07:04:34,615 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-12-02 07:04:34,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:34,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1328430221, now seen corresponding path program 1 times [2024-12-02 07:04:34,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:34,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769599524] [2024-12-02 07:04:34,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:34,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:34,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:34,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:04:34,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769599524] [2024-12-02 07:04:34,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769599524] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:04:34,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749866406] [2024-12-02 07:04:34,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:34,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:04:34,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:04:34,758 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:04:34,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:04:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:34,834 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 07:04:34,837 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:04:34,879 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:34,879 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:04:34,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749866406] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:04:34,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:04:34,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-12-02 07:04:34,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524360489] [2024-12-02 07:04:34,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:04:34,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:04:34,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:04:34,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:04:34,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:04:34,893 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 70 [2024-12-02 07:04:34,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 67 transitions, 163 flow. Second operand has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 6 states have internal predecessors, (244), 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) [2024-12-02 07:04:34,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:04:34,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 70 [2024-12-02 07:04:34,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:04:35,059 INFO L124 PetriNetUnfolderBase]: 305/636 cut-off events. [2024-12-02 07:04:35,059 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-12-02 07:04:35,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1194 conditions, 636 events. 305/636 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3689 event pairs, 303 based on Foata normal form. 1/569 useless extension candidates. Maximal degree in co-relation 1167. Up to 496 conditions per place. [2024-12-02 07:04:35,063 INFO L140 encePairwiseOnDemand]: 65/70 looper letters, 23 selfloop transitions, 7 changer transitions 0/66 dead transitions. [2024-12-02 07:04:35,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 66 transitions, 219 flow [2024-12-02 07:04:35,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:04:35,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 07:04:35,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 265 transitions. [2024-12-02 07:04:35,066 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6309523809523809 [2024-12-02 07:04:35,066 INFO L175 Difference]: Start difference. First operand has 74 places, 67 transitions, 163 flow. Second operand 6 states and 265 transitions. [2024-12-02 07:04:35,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 66 transitions, 219 flow [2024-12-02 07:04:35,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 66 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 07:04:35,069 INFO L231 Difference]: Finished difference. Result has 77 places, 66 transitions, 170 flow [2024-12-02 07:04:35,069 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=170, PETRI_PLACES=77, PETRI_TRANSITIONS=66} [2024-12-02 07:04:35,070 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 4 predicate places. [2024-12-02 07:04:35,070 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 66 transitions, 170 flow [2024-12-02 07:04:35,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 6 states have internal predecessors, (244), 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) [2024-12-02 07:04:35,070 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:04:35,070 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:04:35,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-12-02 07:04:35,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:04:35,271 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-12-02 07:04:35,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:35,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1768335517, now seen corresponding path program 1 times [2024-12-02 07:04:35,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:35,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991247780] [2024-12-02 07:04:35,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:35,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:35,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:35,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:35,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:04:35,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991247780] [2024-12-02 07:04:35,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991247780] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:04:35,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804152608] [2024-12-02 07:04:35,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:35,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:04:35,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:04:35,366 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:04:35,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:04:35,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:35,448 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 07:04:35,449 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:04:35,479 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:35,480 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:04:35,521 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:35,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804152608] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:04:35,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:04:35,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-12-02 07:04:35,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509870249] [2024-12-02 07:04:35,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:04:35,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 07:04:35,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:04:35,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 07:04:35,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:04:35,539 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 70 [2024-12-02 07:04:35,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 66 transitions, 170 flow. Second operand has 12 states, 12 states have (on average 40.5) internal successors, (486), 12 states have internal predecessors, (486), 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) [2024-12-02 07:04:35,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:04:35,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 70 [2024-12-02 07:04:35,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:04:35,761 INFO L124 PetriNetUnfolderBase]: 308/648 cut-off events. [2024-12-02 07:04:35,761 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-12-02 07:04:35,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1238 conditions, 648 events. 308/648 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3770 event pairs, 303 based on Foata normal form. 3/581 useless extension candidates. Maximal degree in co-relation 1168. Up to 503 conditions per place. [2024-12-02 07:04:35,764 INFO L140 encePairwiseOnDemand]: 65/70 looper letters, 26 selfloop transitions, 13 changer transitions 0/75 dead transitions. [2024-12-02 07:04:35,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 75 transitions, 302 flow [2024-12-02 07:04:35,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:04:35,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-02 07:04:35,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 432 transitions. [2024-12-02 07:04:35,768 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6171428571428571 [2024-12-02 07:04:35,768 INFO L175 Difference]: Start difference. First operand has 77 places, 66 transitions, 170 flow. Second operand 10 states and 432 transitions. [2024-12-02 07:04:35,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 75 transitions, 302 flow [2024-12-02 07:04:35,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 75 transitions, 256 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-12-02 07:04:35,771 INFO L231 Difference]: Finished difference. Result has 84 places, 75 transitions, 222 flow [2024-12-02 07:04:35,771 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=222, PETRI_PLACES=84, PETRI_TRANSITIONS=75} [2024-12-02 07:04:35,772 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 11 predicate places. [2024-12-02 07:04:35,772 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 75 transitions, 222 flow [2024-12-02 07:04:35,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 40.5) internal successors, (486), 12 states have internal predecessors, (486), 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) [2024-12-02 07:04:35,772 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:04:35,772 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:04:35,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 07:04:35,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-12-02 07:04:35,973 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-12-02 07:04:35,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:35,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1920772477, now seen corresponding path program 1 times [2024-12-02 07:04:35,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:35,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196565932] [2024-12-02 07:04:35,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:35,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:35,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:36,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:36,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:04:36,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196565932] [2024-12-02 07:04:36,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196565932] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:04:36,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:04:36,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:04:36,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438020100] [2024-12-02 07:04:36,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:04:36,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:04:36,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:04:36,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:04:36,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:04:36,023 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 70 [2024-12-02 07:04:36,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 75 transitions, 222 flow. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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) [2024-12-02 07:04:36,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:04:36,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 70 [2024-12-02 07:04:36,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:04:36,204 INFO L124 PetriNetUnfolderBase]: 638/1292 cut-off events. [2024-12-02 07:04:36,204 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-12-02 07:04:36,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2437 conditions, 1292 events. 638/1292 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 7968 event pairs, 306 based on Foata normal form. 61/1308 useless extension candidates. Maximal degree in co-relation 2403. Up to 560 conditions per place. [2024-12-02 07:04:36,208 INFO L140 encePairwiseOnDemand]: 65/70 looper letters, 46 selfloop transitions, 3 changer transitions 4/85 dead transitions. [2024-12-02 07:04:36,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 85 transitions, 351 flow [2024-12-02 07:04:36,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:04:36,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:04:36,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 151 transitions. [2024-12-02 07:04:36,210 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.719047619047619 [2024-12-02 07:04:36,210 INFO L175 Difference]: Start difference. First operand has 84 places, 75 transitions, 222 flow. Second operand 3 states and 151 transitions. [2024-12-02 07:04:36,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 85 transitions, 351 flow [2024-12-02 07:04:36,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 85 transitions, 340 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-12-02 07:04:36,213 INFO L231 Difference]: Finished difference. Result has 85 places, 75 transitions, 224 flow [2024-12-02 07:04:36,213 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=85, PETRI_TRANSITIONS=75} [2024-12-02 07:04:36,214 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 12 predicate places. [2024-12-02 07:04:36,214 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 75 transitions, 224 flow [2024-12-02 07:04:36,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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) [2024-12-02 07:04:36,214 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:04:36,214 INFO L206 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] [2024-12-02 07:04:36,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:04:36,214 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-12-02 07:04:36,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:36,215 INFO L85 PathProgramCache]: Analyzing trace with hash 921215984, now seen corresponding path program 1 times [2024-12-02 07:04:36,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:36,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629748592] [2024-12-02 07:04:36,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:36,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:36,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:36,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:36,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:04:36,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629748592] [2024-12-02 07:04:36,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629748592] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:04:36,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:04:36,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:04:36,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905140001] [2024-12-02 07:04:36,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:04:36,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:04:36,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:04:36,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:04:36,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:04:36,281 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 70 [2024-12-02 07:04:36,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 75 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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) [2024-12-02 07:04:36,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:04:36,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 70 [2024-12-02 07:04:36,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:04:36,470 INFO L124 PetriNetUnfolderBase]: 658/1330 cut-off events. [2024-12-02 07:04:36,470 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-12-02 07:04:36,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2535 conditions, 1330 events. 658/1330 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 8358 event pairs, 341 based on Foata normal form. 59/1321 useless extension candidates. Maximal degree in co-relation 2500. Up to 539 conditions per place. [2024-12-02 07:04:36,476 INFO L140 encePairwiseOnDemand]: 65/70 looper letters, 48 selfloop transitions, 3 changer transitions 3/86 dead transitions. [2024-12-02 07:04:36,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 86 transitions, 358 flow [2024-12-02 07:04:36,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:04:36,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:04:36,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 152 transitions. [2024-12-02 07:04:36,477 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7238095238095238 [2024-12-02 07:04:36,477 INFO L175 Difference]: Start difference. First operand has 85 places, 75 transitions, 224 flow. Second operand 3 states and 152 transitions. [2024-12-02 07:04:36,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 86 transitions, 358 flow [2024-12-02 07:04:36,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 86 transitions, 352 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 07:04:36,480 INFO L231 Difference]: Finished difference. Result has 86 places, 75 transitions, 231 flow [2024-12-02 07:04:36,481 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=231, PETRI_PLACES=86, PETRI_TRANSITIONS=75} [2024-12-02 07:04:36,481 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 13 predicate places. [2024-12-02 07:04:36,481 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 75 transitions, 231 flow [2024-12-02 07:04:36,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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) [2024-12-02 07:04:36,482 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:04:36,482 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:04:36,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 07:04:36,482 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-12-02 07:04:36,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:36,483 INFO L85 PathProgramCache]: Analyzing trace with hash -116129622, now seen corresponding path program 2 times [2024-12-02 07:04:36,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:36,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245138252] [2024-12-02 07:04:36,483 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:04:36,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:36,498 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 07:04:36,499 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:04:36,563 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-02 07:04:36,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:04:36,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245138252] [2024-12-02 07:04:36,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245138252] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:04:36,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815167300] [2024-12-02 07:04:36,564 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:04:36,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:04:36,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:04:36,566 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:04:36,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 07:04:36,639 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 07:04:36,639 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:04:36,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 07:04:36,641 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:04:36,677 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-02 07:04:36,677 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:04:36,731 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-02 07:04:36,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815167300] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:04:36,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:04:36,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-12-02 07:04:36,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098387626] [2024-12-02 07:04:36,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:04:36,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:04:36,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:04:36,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:04:36,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:04:36,743 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 70 [2024-12-02 07:04:36,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 75 transitions, 231 flow. Second operand has 6 states, 6 states have (on average 39.833333333333336) internal successors, (239), 6 states have internal predecessors, (239), 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) [2024-12-02 07:04:36,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:04:36,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 70 [2024-12-02 07:04:36,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:04:36,908 INFO L124 PetriNetUnfolderBase]: 362/767 cut-off events. [2024-12-02 07:04:36,909 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-12-02 07:04:36,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1480 conditions, 767 events. 362/767 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4803 event pairs, 357 based on Foata normal form. 1/673 useless extension candidates. Maximal degree in co-relation 1449. Up to 599 conditions per place. [2024-12-02 07:04:36,911 INFO L140 encePairwiseOnDemand]: 63/70 looper letters, 21 selfloop transitions, 18 changer transitions 0/74 dead transitions. [2024-12-02 07:04:36,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 74 transitions, 299 flow [2024-12-02 07:04:36,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:04:36,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 07:04:36,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 256 transitions. [2024-12-02 07:04:36,913 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6095238095238096 [2024-12-02 07:04:36,913 INFO L175 Difference]: Start difference. First operand has 86 places, 75 transitions, 231 flow. Second operand 6 states and 256 transitions. [2024-12-02 07:04:36,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 74 transitions, 299 flow [2024-12-02 07:04:36,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 74 transitions, 283 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-12-02 07:04:36,916 INFO L231 Difference]: Finished difference. Result has 84 places, 74 transitions, 241 flow [2024-12-02 07:04:36,916 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=241, PETRI_PLACES=84, PETRI_TRANSITIONS=74} [2024-12-02 07:04:36,916 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 11 predicate places. [2024-12-02 07:04:36,917 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 74 transitions, 241 flow [2024-12-02 07:04:36,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.833333333333336) internal successors, (239), 6 states have internal predecessors, (239), 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) [2024-12-02 07:04:36,917 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:04:36,917 INFO L206 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, 1, 1] [2024-12-02 07:04:36,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 07:04:37,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-12-02 07:04:37,118 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-12-02 07:04:37,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:37,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1111633098, now seen corresponding path program 1 times [2024-12-02 07:04:37,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:37,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954836794] [2024-12-02 07:04:37,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:37,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:37,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:37,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:37,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:04:37,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954836794] [2024-12-02 07:04:37,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954836794] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:04:37,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:04:37,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:04:37,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22434376] [2024-12-02 07:04:37,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:04:37,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:04:37,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:04:37,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:04:37,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:04:37,199 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 70 [2024-12-02 07:04:37,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 74 transitions, 241 flow. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-12-02 07:04:37,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:04:37,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 70 [2024-12-02 07:04:37,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:04:37,477 INFO L124 PetriNetUnfolderBase]: 1351/2694 cut-off events. [2024-12-02 07:04:37,478 INFO L125 PetriNetUnfolderBase]: For 231/231 co-relation queries the response was YES. [2024-12-02 07:04:37,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5224 conditions, 2694 events. 1351/2694 cut-off events. For 231/231 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 18596 event pairs, 521 based on Foata normal form. 30/2687 useless extension candidates. Maximal degree in co-relation 5129. Up to 773 conditions per place. [2024-12-02 07:04:37,485 INFO L140 encePairwiseOnDemand]: 63/70 looper letters, 56 selfloop transitions, 5 changer transitions 25/112 dead transitions. [2024-12-02 07:04:37,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 112 transitions, 503 flow [2024-12-02 07:04:37,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:04:37,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 07:04:37,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 230 transitions. [2024-12-02 07:04:37,487 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6571428571428571 [2024-12-02 07:04:37,487 INFO L175 Difference]: Start difference. First operand has 84 places, 74 transitions, 241 flow. Second operand 5 states and 230 transitions. [2024-12-02 07:04:37,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 112 transitions, 503 flow [2024-12-02 07:04:37,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 112 transitions, 467 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 07:04:37,490 INFO L231 Difference]: Finished difference. Result has 83 places, 73 transitions, 213 flow [2024-12-02 07:04:37,490 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=213, PETRI_PLACES=83, PETRI_TRANSITIONS=73} [2024-12-02 07:04:37,490 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 10 predicate places. [2024-12-02 07:04:37,490 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 73 transitions, 213 flow [2024-12-02 07:04:37,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-12-02 07:04:37,491 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:04:37,491 INFO L206 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, 1, 1] [2024-12-02 07:04:37,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 07:04:37,491 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-12-02 07:04:37,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:37,492 INFO L85 PathProgramCache]: Analyzing trace with hash -797372014, now seen corresponding path program 1 times [2024-12-02 07:04:37,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:37,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387181175] [2024-12-02 07:04:37,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:37,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:37,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:37,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:04:37,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387181175] [2024-12-02 07:04:37,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387181175] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:04:37,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:04:37,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:04:37,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238700407] [2024-12-02 07:04:37,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:04:37,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:04:37,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:04:37,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:04:37,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:04:37,557 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 70 [2024-12-02 07:04:37,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 73 transitions, 213 flow. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-12-02 07:04:37,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:04:37,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 70 [2024-12-02 07:04:37,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:04:37,714 INFO L124 PetriNetUnfolderBase]: 631/1372 cut-off events. [2024-12-02 07:04:37,714 INFO L125 PetriNetUnfolderBase]: For 285/285 co-relation queries the response was YES. [2024-12-02 07:04:37,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2868 conditions, 1372 events. 631/1372 cut-off events. For 285/285 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 8058 event pairs, 251 based on Foata normal form. 30/1383 useless extension candidates. Maximal degree in co-relation 2789. Up to 387 conditions per place. [2024-12-02 07:04:37,717 INFO L140 encePairwiseOnDemand]: 64/70 looper letters, 55 selfloop transitions, 5 changer transitions 3/89 dead transitions. [2024-12-02 07:04:37,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 89 transitions, 376 flow [2024-12-02 07:04:37,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:04:37,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 07:04:37,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 176 transitions. [2024-12-02 07:04:37,719 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2024-12-02 07:04:37,719 INFO L175 Difference]: Start difference. First operand has 83 places, 73 transitions, 213 flow. Second operand 4 states and 176 transitions. [2024-12-02 07:04:37,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 89 transitions, 376 flow [2024-12-02 07:04:37,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 89 transitions, 369 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-12-02 07:04:37,722 INFO L231 Difference]: Finished difference. Result has 81 places, 72 transitions, 212 flow [2024-12-02 07:04:37,723 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=212, PETRI_PLACES=81, PETRI_TRANSITIONS=72} [2024-12-02 07:04:37,723 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 8 predicate places. [2024-12-02 07:04:37,723 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 72 transitions, 212 flow [2024-12-02 07:04:37,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-12-02 07:04:37,724 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:04:37,724 INFO L206 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, 1, 1, 1] [2024-12-02 07:04:37,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 07:04:37,724 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-12-02 07:04:37,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:37,724 INFO L85 PathProgramCache]: Analyzing trace with hash -958532671, now seen corresponding path program 1 times [2024-12-02 07:04:37,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:37,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264857639] [2024-12-02 07:04:37,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:37,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:37,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:37,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:04:37,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264857639] [2024-12-02 07:04:37,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264857639] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:04:37,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:04:37,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:04:37,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511094474] [2024-12-02 07:04:37,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:04:37,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:04:37,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:04:37,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:04:37,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:04:37,779 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 70 [2024-12-02 07:04:37,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 72 transitions, 212 flow. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-12-02 07:04:37,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:04:37,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 70 [2024-12-02 07:04:37,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:04:37,911 INFO L124 PetriNetUnfolderBase]: 548/1143 cut-off events. [2024-12-02 07:04:37,912 INFO L125 PetriNetUnfolderBase]: For 386/424 co-relation queries the response was YES. [2024-12-02 07:04:37,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2484 conditions, 1143 events. 548/1143 cut-off events. For 386/424 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 6393 event pairs, 348 based on Foata normal form. 24/1135 useless extension candidates. Maximal degree in co-relation 2405. Up to 576 conditions per place. [2024-12-02 07:04:37,914 INFO L140 encePairwiseOnDemand]: 66/70 looper letters, 42 selfloop transitions, 3 changer transitions 12/79 dead transitions. [2024-12-02 07:04:37,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 79 transitions, 333 flow [2024-12-02 07:04:37,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:04:37,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 07:04:37,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 166 transitions. [2024-12-02 07:04:37,915 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5928571428571429 [2024-12-02 07:04:37,915 INFO L175 Difference]: Start difference. First operand has 81 places, 72 transitions, 212 flow. Second operand 4 states and 166 transitions. [2024-12-02 07:04:37,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 79 transitions, 333 flow [2024-12-02 07:04:37,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 79 transitions, 320 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-12-02 07:04:37,917 INFO L231 Difference]: Finished difference. Result has 79 places, 61 transitions, 178 flow [2024-12-02 07:04:37,917 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=178, PETRI_PLACES=79, PETRI_TRANSITIONS=61} [2024-12-02 07:04:37,918 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 6 predicate places. [2024-12-02 07:04:37,918 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 61 transitions, 178 flow [2024-12-02 07:04:37,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-12-02 07:04:37,918 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:04:37,918 INFO L206 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, 1, 1, 1] [2024-12-02 07:04:37,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 07:04:37,919 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-12-02 07:04:37,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:04:37,919 INFO L85 PathProgramCache]: Analyzing trace with hash -143769512, now seen corresponding path program 1 times [2024-12-02 07:04:37,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:04:37,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561742665] [2024-12-02 07:04:37,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:04:37,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:04:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:04:37,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:04:37,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:04:37,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561742665] [2024-12-02 07:04:37,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561742665] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:04:37,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:04:37,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:04:37,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819685856] [2024-12-02 07:04:37,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:04:37,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:04:37,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:04:37,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:04:37,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:04:37,977 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 70 [2024-12-02 07:04:37,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 61 transitions, 178 flow. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-12-02 07:04:37,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:04:37,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 70 [2024-12-02 07:04:37,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:04:38,022 INFO L124 PetriNetUnfolderBase]: 68/189 cut-off events. [2024-12-02 07:04:38,022 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2024-12-02 07:04:38,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 189 events. 68/189 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 641 event pairs, 63 based on Foata normal form. 30/205 useless extension candidates. Maximal degree in co-relation 341. Up to 149 conditions per place. [2024-12-02 07:04:38,023 INFO L140 encePairwiseOnDemand]: 68/70 looper letters, 0 selfloop transitions, 0 changer transitions 60/60 dead transitions. [2024-12-02 07:04:38,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 60 transitions, 250 flow [2024-12-02 07:04:38,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:04:38,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:04:38,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 120 transitions. [2024-12-02 07:04:38,024 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2024-12-02 07:04:38,024 INFO L175 Difference]: Start difference. First operand has 79 places, 61 transitions, 178 flow. Second operand 3 states and 120 transitions. [2024-12-02 07:04:38,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 60 transitions, 250 flow [2024-12-02 07:04:38,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 60 transitions, 238 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 07:04:38,025 INFO L231 Difference]: Finished difference. Result has 65 places, 0 transitions, 0 flow [2024-12-02 07:04:38,025 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=65, PETRI_TRANSITIONS=0} [2024-12-02 07:04:38,026 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, -8 predicate places. [2024-12-02 07:04:38,026 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 0 transitions, 0 flow [2024-12-02 07:04:38,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-12-02 07:04:38,028 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2024-12-02 07:04:38,028 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-12-02 07:04:38,028 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-12-02 07:04:38,028 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-12-02 07:04:38,028 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-12-02 07:04:38,028 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-12-02 07:04:38,028 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2024-12-02 07:04:38,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 13 remaining) [2024-12-02 07:04:38,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2024-12-02 07:04:38,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-12-02 07:04:38,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-12-02 07:04:38,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-12-02 07:04:38,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-12-02 07:04:38,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 07:04:38,029 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:04:38,033 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-12-02 07:04:38,033 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 07:04:38,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:04:38 BasicIcfg [2024-12-02 07:04:38,037 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 07:04:38,037 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 07:04:38,037 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 07:04:38,038 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 07:04:38,038 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:04:33" (3/4) ... [2024-12-02 07:04:38,039 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 07:04:38,041 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-12-02 07:04:38,041 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-12-02 07:04:38,041 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-12-02 07:04:38,045 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 101 nodes and edges [2024-12-02 07:04:38,045 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-12-02 07:04:38,045 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-12-02 07:04:38,046 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-12-02 07:04:38,104 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 07:04:38,104 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 07:04:38,104 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 07:04:38,104 INFO L158 Benchmark]: Toolchain (without parser) took 5066.70ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 117.1MB in the beginning and 246.5MB in the end (delta: -129.4MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. [2024-12-02 07:04:38,105 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:04:38,105 INFO L158 Benchmark]: CACSL2BoogieTranslator took 197.75ms. Allocated memory is still 142.6MB. Free memory was 116.9MB in the beginning and 104.6MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:04:38,105 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.43ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 102.7MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:04:38,105 INFO L158 Benchmark]: Boogie Preprocessor took 39.51ms. Allocated memory is still 142.6MB. Free memory was 102.7MB in the beginning and 100.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:04:38,105 INFO L158 Benchmark]: RCFGBuilder took 605.73ms. Allocated memory is still 142.6MB. Free memory was 100.6MB in the beginning and 55.5MB in the end (delta: 45.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-12-02 07:04:38,106 INFO L158 Benchmark]: TraceAbstraction took 4118.97ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 55.0MB in the beginning and 253.3MB in the end (delta: -198.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:04:38,106 INFO L158 Benchmark]: Witness Printer took 66.47ms. Allocated memory is still 335.5MB. Free memory was 253.3MB in the beginning and 246.5MB in the end (delta: 6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:04:38,108 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 197.75ms. Allocated memory is still 142.6MB. Free memory was 116.9MB in the beginning and 104.6MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.43ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 102.7MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.51ms. Allocated memory is still 142.6MB. Free memory was 102.7MB in the beginning and 100.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 605.73ms. Allocated memory is still 142.6MB. Free memory was 100.6MB in the beginning and 55.5MB in the end (delta: 45.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4118.97ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 55.0MB in the beginning and 253.3MB in the end (delta: -198.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 66.47ms. Allocated memory is still 335.5MB. Free memory was 253.3MB in the beginning and 246.5MB in the end (delta: 6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 130]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 130]: 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, 111 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: 4.0s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 416 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 325 mSDsluCounter, 122 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 841 IncrementalHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 61 mSDtfsCounter, 841 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 98 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=241occurred in iteration=6, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 289 NumberOfCodeBlocks, 265 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 317 ConstructedInterpolants, 0 QuantifiedInterpolants, 609 SizeOfPredicates, 10 NumberOfNonLiveVariables, 295 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 68/103 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-12-02 07:04:38,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_920c9afc-a102-4667-8c87-c7be6ca6f92f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE