./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-more-dec-subseq.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_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB --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 0f0e249de6560bdff430500b6d1ad159bf4a19253ccf183d061fafc41fe4114b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:29:44,490 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:29:44,567 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 23:29:44,572 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:29:44,573 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:29:44,596 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:29:44,596 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:29:44,597 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:29:44,597 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:29:44,597 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:29:44,597 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:29:44,597 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:29:44,597 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:29:44,598 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:29:44,598 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:29:44,598 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:29:44,598 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:29:44,598 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:29:44,598 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:29:44,598 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:29:44,598 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:29:44,598 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:29:44,598 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:29:44,599 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:29:44,599 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 23:29:44,599 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:29:44,599 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:29:44,599 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:29:44,599 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:29:44,599 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:29:44,599 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:29:44,599 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:29:44,600 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:29:44,600 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:29:44,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:29:44,600 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:29:44,600 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:29:44,600 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:29:44,600 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:29:44,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:29:44,601 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:29:44,601 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:29:44,601 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:29:44,601 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:29:44,601 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:29:44,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:29:44,601 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:29:44,601 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:29:44,601 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:29:44,601 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:29:44,602 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_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 0f0e249de6560bdff430500b6d1ad159bf4a19253ccf183d061fafc41fe4114b [2024-11-27 23:29:44,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:29:44,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:29:44,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:29:44,944 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:29:44,945 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:29:44,946 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c [2024-11-27 23:29:48,093 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/data/9a85a99f2/f53e461433784c9fbf53ead74c888f3f/FLAG9a112473b [2024-11-27 23:29:48,390 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:29:48,391 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c [2024-11-27 23:29:48,400 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/data/9a85a99f2/f53e461433784c9fbf53ead74c888f3f/FLAG9a112473b [2024-11-27 23:29:48,413 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/data/9a85a99f2/f53e461433784c9fbf53ead74c888f3f [2024-11-27 23:29:48,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:29:48,417 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:29:48,419 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:29:48,419 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:29:48,424 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:29:48,425 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:29:48" (1/1) ... [2024-11-27 23:29:48,426 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77c9ee7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:48, skipping insertion in model container [2024-11-27 23:29:48,426 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:29:48" (1/1) ... [2024-11-27 23:29:48,445 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:29:48,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:29:48,699 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:29:48,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:29:48,743 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:29:48,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:48 WrapperNode [2024-11-27 23:29:48,744 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:29:48,745 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:29:48,745 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:29:48,745 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:29:48,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:48" (1/1) ... [2024-11-27 23:29:48,760 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:48" (1/1) ... [2024-11-27 23:29:48,788 INFO L138 Inliner]: procedures = 23, calls = 36, calls flagged for inlining = 12, calls inlined = 14, statements flattened = 195 [2024-11-27 23:29:48,788 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:29:48,789 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:29:48,789 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:29:48,789 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:29:48,801 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:48" (1/1) ... [2024-11-27 23:29:48,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:48" (1/1) ... [2024-11-27 23:29:48,805 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:48" (1/1) ... [2024-11-27 23:29:48,827 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-11-27 23:29:48,827 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:48" (1/1) ... [2024-11-27 23:29:48,828 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:48" (1/1) ... [2024-11-27 23:29:48,841 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:48" (1/1) ... [2024-11-27 23:29:48,848 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:48" (1/1) ... [2024-11-27 23:29:48,852 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:48" (1/1) ... [2024-11-27 23:29:48,854 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:48" (1/1) ... [2024-11-27 23:29:48,855 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:48" (1/1) ... [2024-11-27 23:29:48,858 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:29:48,859 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:29:48,859 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:29:48,859 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:29:48,860 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:48" (1/1) ... [2024-11-27 23:29:48,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:29:48,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:48,903 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:29:48,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:29:48,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:29:48,944 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-27 23:29:48,944 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-27 23:29:48,944 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-27 23:29:48,944 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-27 23:29:48,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:29:48,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 23:29:48,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 23:29:48,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 23:29:48,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-27 23:29:48,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-27 23:29:48,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 23:29:48,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:29:48,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:29:48,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 23:29:48,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 23:29:48,946 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 23:29:49,061 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:29:49,063 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:29:49,545 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 23:29:49,545 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:29:49,981 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:29:49,981 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-27 23:29:49,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:29:49 BoogieIcfgContainer [2024-11-27 23:29:49,982 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:29:49,984 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:29:49,984 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:29:49,989 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:29:49,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:29:48" (1/3) ... [2024-11-27 23:29:49,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b522237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:29:49, skipping insertion in model container [2024-11-27 23:29:49,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:29:48" (2/3) ... [2024-11-27 23:29:49,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b522237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:29:49, skipping insertion in model container [2024-11-27 23:29:49,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:29:49" (3/3) ... [2024-11-27 23:29:49,992 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-dec-subseq.wvr.c [2024-11-27 23:29:50,010 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:29:50,011 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-dec-subseq.wvr.c that has 3 procedures, 39 locations, 1 initial locations, 4 loop locations, and 10 error locations. [2024-11-27 23:29:50,012 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 23:29:50,080 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-27 23:29:50,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 43 transitions, 100 flow [2024-11-27 23:29:50,174 INFO L124 PetriNetUnfolderBase]: 5/41 cut-off events. [2024-11-27 23:29:50,179 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-27 23:29:50,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 41 events. 5/41 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 99 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2024-11-27 23:29:50,186 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 43 transitions, 100 flow [2024-11-27 23:29:50,191 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 39 transitions, 87 flow [2024-11-27 23:29:50,208 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:29:50,223 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;@3f17123e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:29:50,223 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-27 23:29:50,227 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 23:29:50,227 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-27 23:29:50,227 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:29:50,228 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:29:50,228 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-27 23:29:50,229 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-27 23:29:50,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:50,235 INFO L85 PathProgramCache]: Analyzing trace with hash 597744, now seen corresponding path program 1 times [2024-11-27 23:29:50,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:50,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799811659] [2024-11-27 23:29:50,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:50,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:50,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:50,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:50,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799811659] [2024-11-27 23:29:50,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799811659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:50,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:50,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:29:50,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111172961] [2024-11-27 23:29:50,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:50,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:29:50,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:50,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:29:50,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:29:50,688 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-11-27 23:29:50,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 39 transitions, 87 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:50,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:29:50,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-11-27 23:29:50,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:29:51,064 INFO L124 PetriNetUnfolderBase]: 238/425 cut-off events. [2024-11-27 23:29:51,064 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-27 23:29:51,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 828 conditions, 425 events. 238/425 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 1878 event pairs, 142 based on Foata normal form. 2/284 useless extension candidates. Maximal degree in co-relation 751. Up to 368 conditions per place. [2024-11-27 23:29:51,074 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 29 selfloop transitions, 7 changer transitions 0/43 dead transitions. [2024-11-27 23:29:51,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 43 transitions, 167 flow [2024-11-27 23:29:51,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:29:51,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:29:51,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2024-11-27 23:29:51,099 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45348837209302323 [2024-11-27 23:29:51,102 INFO L175 Difference]: Start difference. First operand has 41 places, 39 transitions, 87 flow. Second operand 4 states and 78 transitions. [2024-11-27 23:29:51,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 43 transitions, 167 flow [2024-11-27 23:29:51,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 43 transitions, 162 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-27 23:29:51,115 INFO L231 Difference]: Finished difference. Result has 42 places, 43 transitions, 138 flow [2024-11-27 23:29:51,118 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=138, PETRI_PLACES=42, PETRI_TRANSITIONS=43} [2024-11-27 23:29:51,123 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2024-11-27 23:29:51,125 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 43 transitions, 138 flow [2024-11-27 23:29:51,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:51,126 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:29:51,126 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-27 23:29:51,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:29:51,127 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-27 23:29:51,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:51,128 INFO L85 PathProgramCache]: Analyzing trace with hash 628087390, now seen corresponding path program 1 times [2024-11-27 23:29:51,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:51,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370350592] [2024-11-27 23:29:51,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:51,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:51,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:51,409 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:51,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:51,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370350592] [2024-11-27 23:29:51,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370350592] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:51,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188330528] [2024-11-27 23:29:51,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:51,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:51,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:51,415 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:51,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:29:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:51,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:29:51,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:51,593 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:51,593 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:51,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188330528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:51,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:29:51,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-27 23:29:51,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056047397] [2024-11-27 23:29:51,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:51,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:29:51,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:51,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:29:51,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:29:51,633 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-11-27 23:29:51,633 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 43 transitions, 138 flow. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:51,633 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:29:51,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-11-27 23:29:51,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:29:51,899 INFO L124 PetriNetUnfolderBase]: 238/423 cut-off events. [2024-11-27 23:29:51,899 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-27 23:29:51,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 841 conditions, 423 events. 238/423 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 1831 event pairs, 142 based on Foata normal form. 2/285 useless extension candidates. Maximal degree in co-relation 791. Up to 358 conditions per place. [2024-11-27 23:29:51,904 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 22 selfloop transitions, 12 changer transitions 0/41 dead transitions. [2024-11-27 23:29:51,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 41 transitions, 198 flow [2024-11-27 23:29:51,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:29:51,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 23:29:51,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 90 transitions. [2024-11-27 23:29:51,910 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3488372093023256 [2024-11-27 23:29:51,910 INFO L175 Difference]: Start difference. First operand has 42 places, 43 transitions, 138 flow. Second operand 6 states and 90 transitions. [2024-11-27 23:29:51,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 41 transitions, 198 flow [2024-11-27 23:29:51,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 41 transitions, 198 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 23:29:51,917 INFO L231 Difference]: Finished difference. Result has 45 places, 41 transitions, 154 flow [2024-11-27 23:29:51,917 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=154, PETRI_PLACES=45, PETRI_TRANSITIONS=41} [2024-11-27 23:29:51,918 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 4 predicate places. [2024-11-27 23:29:51,918 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 41 transitions, 154 flow [2024-11-27 23:29:51,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:51,918 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:29:51,918 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-27 23:29:51,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 23:29:52,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:52,119 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-27 23:29:52,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:52,120 INFO L85 PathProgramCache]: Analyzing trace with hash -2004126821, now seen corresponding path program 1 times [2024-11-27 23:29:52,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:52,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113874392] [2024-11-27 23:29:52,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:52,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:52,314 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:52,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:52,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113874392] [2024-11-27 23:29:52,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113874392] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:52,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028986034] [2024-11-27 23:29:52,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:52,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:52,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:52,318 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:52,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:29:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:52,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:29:52,409 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:52,457 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:52,457 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:29:52,521 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:52,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028986034] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:29:52,521 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:29:52,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-27 23:29:52,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423560045] [2024-11-27 23:29:52,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:29:52,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:29:52,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:52,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:29:52,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:29:52,563 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-11-27 23:29:52,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 154 flow. Second operand has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 12 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) [2024-11-27 23:29:52,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:29:52,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-11-27 23:29:52,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:29:52,848 INFO L124 PetriNetUnfolderBase]: 244/447 cut-off events. [2024-11-27 23:29:52,848 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-11-27 23:29:52,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 935 conditions, 447 events. 244/447 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2010 event pairs, 142 based on Foata normal form. 6/312 useless extension candidates. Maximal degree in co-relation 793. Up to 369 conditions per place. [2024-11-27 23:29:52,857 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 27 selfloop transitions, 25 changer transitions 0/59 dead transitions. [2024-11-27 23:29:52,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 59 transitions, 372 flow [2024-11-27 23:29:52,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:29:52,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-27 23:29:52,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 148 transitions. [2024-11-27 23:29:52,861 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.34418604651162793 [2024-11-27 23:29:52,861 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 154 flow. Second operand 10 states and 148 transitions. [2024-11-27 23:29:52,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 59 transitions, 372 flow [2024-11-27 23:29:52,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 59 transitions, 314 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-11-27 23:29:52,867 INFO L231 Difference]: Finished difference. Result has 52 places, 59 transitions, 294 flow [2024-11-27 23:29:52,868 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=294, PETRI_PLACES=52, PETRI_TRANSITIONS=59} [2024-11-27 23:29:52,869 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 11 predicate places. [2024-11-27 23:29:52,869 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 59 transitions, 294 flow [2024-11-27 23:29:52,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 12 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) [2024-11-27 23:29:52,869 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:29:52,869 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:52,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 23:29:53,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:53,074 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-27 23:29:53,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:53,075 INFO L85 PathProgramCache]: Analyzing trace with hash -854904125, now seen corresponding path program 1 times [2024-11-27 23:29:53,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:53,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540812290] [2024-11-27 23:29:53,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:53,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:53,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:53,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:53,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540812290] [2024-11-27 23:29:53,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540812290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:53,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:53,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:29:53,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764714015] [2024-11-27 23:29:53,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:53,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:29:53,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:53,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:29:53,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:29:53,309 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-11-27 23:29:53,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 59 transitions, 294 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:53,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:29:53,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-11-27 23:29:53,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:29:53,503 INFO L124 PetriNetUnfolderBase]: 302/581 cut-off events. [2024-11-27 23:29:53,504 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-11-27 23:29:53,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1252 conditions, 581 events. 302/581 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2768 event pairs, 185 based on Foata normal form. 9/421 useless extension candidates. Maximal degree in co-relation 1156. Up to 384 conditions per place. [2024-11-27 23:29:53,510 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 72 selfloop transitions, 3 changer transitions 3/87 dead transitions. [2024-11-27 23:29:53,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 87 transitions, 583 flow [2024-11-27 23:29:53,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:29:53,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:29:53,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2024-11-27 23:29:53,514 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5872093023255814 [2024-11-27 23:29:53,514 INFO L175 Difference]: Start difference. First operand has 52 places, 59 transitions, 294 flow. Second operand 4 states and 101 transitions. [2024-11-27 23:29:53,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 87 transitions, 583 flow [2024-11-27 23:29:53,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 87 transitions, 549 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-27 23:29:53,522 INFO L231 Difference]: Finished difference. Result has 54 places, 59 transitions, 285 flow [2024-11-27 23:29:53,522 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=285, PETRI_PLACES=54, PETRI_TRANSITIONS=59} [2024-11-27 23:29:53,523 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 13 predicate places. [2024-11-27 23:29:53,523 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 59 transitions, 285 flow [2024-11-27 23:29:53,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:53,523 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:29:53,524 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:53,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:29:53,524 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-27 23:29:53,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:53,526 INFO L85 PathProgramCache]: Analyzing trace with hash -854904092, now seen corresponding path program 1 times [2024-11-27 23:29:53,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:53,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47827215] [2024-11-27 23:29:53,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:53,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:53,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:53,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:53,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47827215] [2024-11-27 23:29:53,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47827215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:53,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:53,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-27 23:29:53,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410494473] [2024-11-27 23:29:53,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:53,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:29:53,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:53,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:29:53,610 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:29:53,616 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-11-27 23:29:53,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 59 transitions, 285 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:53,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:29:53,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-11-27 23:29:53,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:29:53,768 INFO L124 PetriNetUnfolderBase]: 275/532 cut-off events. [2024-11-27 23:29:53,769 INFO L125 PetriNetUnfolderBase]: For 114/170 co-relation queries the response was YES. [2024-11-27 23:29:53,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1236 conditions, 532 events. 275/532 cut-off events. For 114/170 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2559 event pairs, 164 based on Foata normal form. 0/378 useless extension candidates. Maximal degree in co-relation 1142. Up to 459 conditions per place. [2024-11-27 23:29:53,772 INFO L140 encePairwiseOnDemand]: 41/43 looper letters, 48 selfloop transitions, 1 changer transitions 0/58 dead transitions. [2024-11-27 23:29:53,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 58 transitions, 381 flow [2024-11-27 23:29:53,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:29:53,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:29:53,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2024-11-27 23:29:53,774 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5038759689922481 [2024-11-27 23:29:53,774 INFO L175 Difference]: Start difference. First operand has 54 places, 59 transitions, 285 flow. Second operand 3 states and 65 transitions. [2024-11-27 23:29:53,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 58 transitions, 381 flow [2024-11-27 23:29:53,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 58 transitions, 377 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-27 23:29:53,778 INFO L231 Difference]: Finished difference. Result has 54 places, 58 transitions, 281 flow [2024-11-27 23:29:53,778 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=281, PETRI_PLACES=54, PETRI_TRANSITIONS=58} [2024-11-27 23:29:53,779 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 13 predicate places. [2024-11-27 23:29:53,779 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 58 transitions, 281 flow [2024-11-27 23:29:53,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:53,780 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:29:53,780 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:53,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:29:53,780 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-27 23:29:53,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:53,781 INFO L85 PathProgramCache]: Analyzing trace with hash -854904091, now seen corresponding path program 1 times [2024-11-27 23:29:53,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:53,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680583625] [2024-11-27 23:29:53,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:53,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:53,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:53,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:53,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680583625] [2024-11-27 23:29:53,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680583625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:53,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:53,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-27 23:29:53,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287030735] [2024-11-27 23:29:53,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:53,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:29:53,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:53,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:29:53,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:29:53,842 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-11-27 23:29:53,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 58 transitions, 281 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:53,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:29:53,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-11-27 23:29:53,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:29:54,012 INFO L124 PetriNetUnfolderBase]: 431/785 cut-off events. [2024-11-27 23:29:54,013 INFO L125 PetriNetUnfolderBase]: For 133/181 co-relation queries the response was YES. [2024-11-27 23:29:54,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1845 conditions, 785 events. 431/785 cut-off events. For 133/181 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 4100 event pairs, 124 based on Foata normal form. 0/572 useless extension candidates. Maximal degree in co-relation 1830. Up to 382 conditions per place. [2024-11-27 23:29:54,019 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 63 selfloop transitions, 2 changer transitions 0/74 dead transitions. [2024-11-27 23:29:54,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 74 transitions, 454 flow [2024-11-27 23:29:54,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:29:54,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:29:54,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2024-11-27 23:29:54,021 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.627906976744186 [2024-11-27 23:29:54,021 INFO L175 Difference]: Start difference. First operand has 54 places, 58 transitions, 281 flow. Second operand 3 states and 81 transitions. [2024-11-27 23:29:54,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 74 transitions, 454 flow [2024-11-27 23:29:54,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 74 transitions, 445 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 23:29:54,027 INFO L231 Difference]: Finished difference. Result has 55 places, 59 transitions, 284 flow [2024-11-27 23:29:54,029 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=55, PETRI_TRANSITIONS=59} [2024-11-27 23:29:54,029 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 14 predicate places. [2024-11-27 23:29:54,030 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 59 transitions, 284 flow [2024-11-27 23:29:54,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:54,030 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:29:54,030 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:54,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:29:54,030 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-27 23:29:54,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:54,031 INFO L85 PathProgramCache]: Analyzing trace with hash -313103339, now seen corresponding path program 1 times [2024-11-27 23:29:54,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:54,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142725197] [2024-11-27 23:29:54,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:54,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:54,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:54,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:54,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142725197] [2024-11-27 23:29:54,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142725197] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:54,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145346413] [2024-11-27 23:29:54,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:54,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:54,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:54,324 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:54,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:29:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:54,423 INFO L256 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:29:54,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:54,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:29:54,448 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:54,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145346413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:54,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:29:54,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 7 [2024-11-27 23:29:54,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292511616] [2024-11-27 23:29:54,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:54,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:29:54,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:54,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:29:54,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:29:54,455 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-11-27 23:29:54,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 59 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:54,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:29:54,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-11-27 23:29:54,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:29:54,627 INFO L124 PetriNetUnfolderBase]: 429/817 cut-off events. [2024-11-27 23:29:54,628 INFO L125 PetriNetUnfolderBase]: For 136/192 co-relation queries the response was YES. [2024-11-27 23:29:54,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1942 conditions, 817 events. 429/817 cut-off events. For 136/192 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 4346 event pairs, 285 based on Foata normal form. 2/607 useless extension candidates. Maximal degree in co-relation 1926. Up to 712 conditions per place. [2024-11-27 23:29:54,633 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 43 selfloop transitions, 6 changer transitions 0/58 dead transitions. [2024-11-27 23:29:54,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 58 transitions, 378 flow [2024-11-27 23:29:54,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:29:54,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:29:54,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-11-27 23:29:54,635 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5193798449612403 [2024-11-27 23:29:54,635 INFO L175 Difference]: Start difference. First operand has 55 places, 59 transitions, 284 flow. Second operand 3 states and 67 transitions. [2024-11-27 23:29:54,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 58 transitions, 378 flow [2024-11-27 23:29:54,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 58 transitions, 376 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:29:54,639 INFO L231 Difference]: Finished difference. Result has 56 places, 58 transitions, 290 flow [2024-11-27 23:29:54,639 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=56, PETRI_TRANSITIONS=58} [2024-11-27 23:29:54,640 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 15 predicate places. [2024-11-27 23:29:54,640 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 58 transitions, 290 flow [2024-11-27 23:29:54,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:54,640 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:29:54,641 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:54,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 23:29:54,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:54,846 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-27 23:29:54,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:54,846 INFO L85 PathProgramCache]: Analyzing trace with hash -100895922, now seen corresponding path program 1 times [2024-11-27 23:29:54,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:54,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630154757] [2024-11-27 23:29:54,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:54,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:55,082 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:29:55,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:55,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630154757] [2024-11-27 23:29:55,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630154757] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:55,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941816745] [2024-11-27 23:29:55,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:55,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:55,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:55,085 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:55,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 23:29:55,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:55,174 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:29:55,175 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:55,210 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 23:29:55,210 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:29:55,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941816745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:55,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:29:55,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2024-11-27 23:29:55,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918536017] [2024-11-27 23:29:55,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:55,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:29:55,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:55,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:29:55,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:29:55,212 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-11-27 23:29:55,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 58 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:55,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:29:55,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-11-27 23:29:55,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:29:55,338 INFO L124 PetriNetUnfolderBase]: 317/645 cut-off events. [2024-11-27 23:29:55,338 INFO L125 PetriNetUnfolderBase]: For 135/159 co-relation queries the response was YES. [2024-11-27 23:29:55,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1488 conditions, 645 events. 317/645 cut-off events. For 135/159 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3303 event pairs, 216 based on Foata normal form. 0/531 useless extension candidates. Maximal degree in co-relation 1472. Up to 554 conditions per place. [2024-11-27 23:29:55,343 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 45 selfloop transitions, 1 changer transitions 1/56 dead transitions. [2024-11-27 23:29:55,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 56 transitions, 376 flow [2024-11-27 23:29:55,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:29:55,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 23:29:55,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2024-11-27 23:29:55,344 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49612403100775193 [2024-11-27 23:29:55,344 INFO L175 Difference]: Start difference. First operand has 56 places, 58 transitions, 290 flow. Second operand 3 states and 64 transitions. [2024-11-27 23:29:55,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 56 transitions, 376 flow [2024-11-27 23:29:55,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 56 transitions, 370 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:29:55,347 INFO L231 Difference]: Finished difference. Result has 55 places, 55 transitions, 275 flow [2024-11-27 23:29:55,347 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=275, PETRI_PLACES=55, PETRI_TRANSITIONS=55} [2024-11-27 23:29:55,348 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 14 predicate places. [2024-11-27 23:29:55,348 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 55 transitions, 275 flow [2024-11-27 23:29:55,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:55,348 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:29:55,348 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:55,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 23:29:55,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:55,549 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-27 23:29:55,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:55,550 INFO L85 PathProgramCache]: Analyzing trace with hash 2014008739, now seen corresponding path program 1 times [2024-11-27 23:29:55,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:55,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532033007] [2024-11-27 23:29:55,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:55,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:55,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:55,637 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:29:55,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:55,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532033007] [2024-11-27 23:29:55,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532033007] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:55,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884293948] [2024-11-27 23:29:55,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:55,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:55,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:55,640 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:55,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 23:29:55,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:55,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 23:29:55,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:55,890 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:55,890 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:29:56,030 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:56,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884293948] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:29:56,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:29:56,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 7, 7] total 14 [2024-11-27 23:29:56,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826928240] [2024-11-27 23:29:56,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:29:56,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 23:29:56,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:56,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 23:29:56,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:29:56,194 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-11-27 23:29:56,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 55 transitions, 275 flow. Second operand has 15 states, 15 states have (on average 11.2) internal successors, (168), 15 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:56,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:29:56,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-11-27 23:29:56,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:29:56,741 INFO L124 PetriNetUnfolderBase]: 598/1106 cut-off events. [2024-11-27 23:29:56,741 INFO L125 PetriNetUnfolderBase]: For 192/220 co-relation queries the response was YES. [2024-11-27 23:29:56,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2566 conditions, 1106 events. 598/1106 cut-off events. For 192/220 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 5876 event pairs, 140 based on Foata normal form. 0/918 useless extension candidates. Maximal degree in co-relation 2549. Up to 242 conditions per place. [2024-11-27 23:29:56,747 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 42 selfloop transitions, 28 changer transitions 42/119 dead transitions. [2024-11-27 23:29:56,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 119 transitions, 666 flow [2024-11-27 23:29:56,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:29:56,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-27 23:29:56,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 222 transitions. [2024-11-27 23:29:56,749 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3687707641196013 [2024-11-27 23:29:56,749 INFO L175 Difference]: Start difference. First operand has 55 places, 55 transitions, 275 flow. Second operand 14 states and 222 transitions. [2024-11-27 23:29:56,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 119 transitions, 666 flow [2024-11-27 23:29:56,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 119 transitions, 665 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:29:56,753 INFO L231 Difference]: Finished difference. Result has 68 places, 55 transitions, 337 flow [2024-11-27 23:29:56,754 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=337, PETRI_PLACES=68, PETRI_TRANSITIONS=55} [2024-11-27 23:29:56,754 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 27 predicate places. [2024-11-27 23:29:56,754 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 55 transitions, 337 flow [2024-11-27 23:29:56,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.2) internal successors, (168), 15 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:56,755 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:29:56,755 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-27 23:29:56,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 23:29:56,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-27 23:29:56,958 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-27 23:29:56,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:56,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1028308681, now seen corresponding path program 2 times [2024-11-27 23:29:56,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:56,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559929655] [2024-11-27 23:29:56,959 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:29:56,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:56,977 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:29:56,977 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:29:57,036 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-27 23:29:57,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:57,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559929655] [2024-11-27 23:29:57,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559929655] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:57,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500848184] [2024-11-27 23:29:57,037 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:29:57,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:57,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:57,039 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:57,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 23:29:57,118 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:29:57,118 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:29:57,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:29:57,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:57,155 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-27 23:29:57,155 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:29:57,187 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-27 23:29:57,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500848184] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:29:57,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:29:57,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-27 23:29:57,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249103259] [2024-11-27 23:29:57,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:29:57,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:29:57,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:57,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:29:57,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:29:57,201 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-11-27 23:29:57,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 55 transitions, 337 flow. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:57,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:29:57,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-11-27 23:29:57,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:29:57,358 INFO L124 PetriNetUnfolderBase]: 395/776 cut-off events. [2024-11-27 23:29:57,359 INFO L125 PetriNetUnfolderBase]: For 330/352 co-relation queries the response was YES. [2024-11-27 23:29:57,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1970 conditions, 776 events. 395/776 cut-off events. For 330/352 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3868 event pairs, 274 based on Foata normal form. 1/678 useless extension candidates. Maximal degree in co-relation 1950. Up to 670 conditions per place. [2024-11-27 23:29:57,364 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 31 selfloop transitions, 16 changer transitions 0/54 dead transitions. [2024-11-27 23:29:57,364 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 54 transitions, 421 flow [2024-11-27 23:29:57,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:29:57,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:29:57,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 60 transitions. [2024-11-27 23:29:57,365 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3488372093023256 [2024-11-27 23:29:57,365 INFO L175 Difference]: Start difference. First operand has 68 places, 55 transitions, 337 flow. Second operand 4 states and 60 transitions. [2024-11-27 23:29:57,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 54 transitions, 421 flow [2024-11-27 23:29:57,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 54 transitions, 408 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-27 23:29:57,369 INFO L231 Difference]: Finished difference. Result has 62 places, 54 transitions, 346 flow [2024-11-27 23:29:57,369 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=346, PETRI_PLACES=62, PETRI_TRANSITIONS=54} [2024-11-27 23:29:57,370 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 21 predicate places. [2024-11-27 23:29:57,370 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 54 transitions, 346 flow [2024-11-27 23:29:57,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:57,370 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:29:57,370 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1] [2024-11-27 23:29:57,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-27 23:29:57,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-27 23:29:57,571 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-27 23:29:57,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:57,572 INFO L85 PathProgramCache]: Analyzing trace with hash -796534179, now seen corresponding path program 1 times [2024-11-27 23:29:57,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:57,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331952479] [2024-11-27 23:29:57,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:57,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:57,813 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:57,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:57,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331952479] [2024-11-27 23:29:57,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331952479] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:57,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47128922] [2024-11-27 23:29:57,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:57,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:57,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:57,816 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:57,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 23:29:57,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:57,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 23:29:57,909 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:57,961 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:57,961 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:29:58,143 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:29:58,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47128922] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:29:58,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:29:58,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2024-11-27 23:29:58,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491488591] [2024-11-27 23:29:58,143 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:29:58,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-27 23:29:58,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:58,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-27 23:29:58,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2024-11-27 23:29:58,201 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-11-27 23:29:58,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 54 transitions, 346 flow. Second operand has 24 states, 24 states have (on average 10.083333333333334) internal successors, (242), 24 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:58,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:29:58,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-11-27 23:29:58,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:29:58,631 INFO L124 PetriNetUnfolderBase]: 413/852 cut-off events. [2024-11-27 23:29:58,631 INFO L125 PetriNetUnfolderBase]: For 593/615 co-relation queries the response was YES. [2024-11-27 23:29:58,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2213 conditions, 852 events. 413/852 cut-off events. For 593/615 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 4322 event pairs, 274 based on Foata normal form. 12/763 useless extension candidates. Maximal degree in co-relation 2194. Up to 666 conditions per place. [2024-11-27 23:29:58,637 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 24 selfloop transitions, 59 changer transitions 0/90 dead transitions. [2024-11-27 23:29:58,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 90 transitions, 836 flow [2024-11-27 23:29:58,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-27 23:29:58,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-27 23:29:58,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 285 transitions. [2024-11-27 23:29:58,639 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3012684989429176 [2024-11-27 23:29:58,639 INFO L175 Difference]: Start difference. First operand has 62 places, 54 transitions, 346 flow. Second operand 22 states and 285 transitions. [2024-11-27 23:29:58,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 90 transitions, 836 flow [2024-11-27 23:29:58,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 90 transitions, 768 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-27 23:29:58,647 INFO L231 Difference]: Finished difference. Result has 86 places, 90 transitions, 766 flow [2024-11-27 23:29:58,647 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=766, PETRI_PLACES=86, PETRI_TRANSITIONS=90} [2024-11-27 23:29:58,648 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 45 predicate places. [2024-11-27 23:29:58,648 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 90 transitions, 766 flow [2024-11-27 23:29:58,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 10.083333333333334) internal successors, (242), 24 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:58,648 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:29:58,648 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:58,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 23:29:58,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-27 23:29:58,849 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-27 23:29:58,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:58,849 INFO L85 PathProgramCache]: Analyzing trace with hash -416467995, now seen corresponding path program 2 times [2024-11-27 23:29:58,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:58,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055542761] [2024-11-27 23:29:58,849 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:29:58,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:58,863 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:29:58,863 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:29:58,902 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-27 23:29:58,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:58,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055542761] [2024-11-27 23:29:58,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055542761] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:58,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545697476] [2024-11-27 23:29:58,902 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:29:58,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:58,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:58,905 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:58,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 23:29:58,983 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:29:58,983 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:29:58,984 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:29:58,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:59,014 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-27 23:29:59,014 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:29:59,050 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-27 23:29:59,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545697476] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:29:59,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:29:59,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-27 23:29:59,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708928612] [2024-11-27 23:29:59,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:29:59,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:29:59,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:59,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:29:59,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:29:59,058 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-11-27 23:29:59,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 90 transitions, 766 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:59,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:29:59,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-11-27 23:29:59,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:29:59,208 INFO L124 PetriNetUnfolderBase]: 391/802 cut-off events. [2024-11-27 23:29:59,208 INFO L125 PetriNetUnfolderBase]: For 641/661 co-relation queries the response was YES. [2024-11-27 23:29:59,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2180 conditions, 802 events. 391/802 cut-off events. For 641/661 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3914 event pairs, 220 based on Foata normal form. 0/725 useless extension candidates. Maximal degree in co-relation 2155. Up to 602 conditions per place. [2024-11-27 23:29:59,212 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 55 selfloop transitions, 1 changer transitions 37/96 dead transitions. [2024-11-27 23:29:59,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 96 transitions, 954 flow [2024-11-27 23:29:59,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:29:59,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:29:59,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 81 transitions. [2024-11-27 23:29:59,213 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47093023255813954 [2024-11-27 23:29:59,213 INFO L175 Difference]: Start difference. First operand has 86 places, 90 transitions, 766 flow. Second operand 4 states and 81 transitions. [2024-11-27 23:29:59,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 96 transitions, 954 flow [2024-11-27 23:29:59,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 96 transitions, 802 flow, removed 47 selfloop flow, removed 9 redundant places. [2024-11-27 23:29:59,220 INFO L231 Difference]: Finished difference. Result has 79 places, 59 transitions, 503 flow [2024-11-27 23:29:59,220 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=503, PETRI_PLACES=79, PETRI_TRANSITIONS=59} [2024-11-27 23:29:59,221 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 38 predicate places. [2024-11-27 23:29:59,221 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 59 transitions, 503 flow [2024-11-27 23:29:59,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:29:59,221 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:29:59,221 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 1, 1, 1] [2024-11-27 23:29:59,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-27 23:29:59,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:59,425 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-27 23:29:59,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:59,426 INFO L85 PathProgramCache]: Analyzing trace with hash 450107837, now seen corresponding path program 2 times [2024-11-27 23:29:59,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:59,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015459589] [2024-11-27 23:29:59,426 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:29:59,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:59,448 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:29:59,448 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:29:59,708 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-27 23:29:59,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:59,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015459589] [2024-11-27 23:29:59,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015459589] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:29:59,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320715706] [2024-11-27 23:29:59,709 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:29:59,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:29:59,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:29:59,711 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:29:59,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 23:29:59,814 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:29:59,815 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:29:59,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:29:59,817 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:29:59,896 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-27 23:29:59,897 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:29:59,988 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-27 23:29:59,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320715706] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:29:59,988 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:29:59,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-27 23:29:59,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685063696] [2024-11-27 23:29:59,989 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:29:59,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:29:59,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:59,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:29:59,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:30:00,024 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-11-27 23:30:00,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 59 transitions, 503 flow. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:30:00,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:30:00,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-11-27 23:30:00,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:30:00,082 INFO L124 PetriNetUnfolderBase]: 12/111 cut-off events. [2024-11-27 23:30:00,082 INFO L125 PetriNetUnfolderBase]: For 315/315 co-relation queries the response was YES. [2024-11-27 23:30:00,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460 conditions, 111 events. 12/111 cut-off events. For 315/315 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 193 event pairs, 0 based on Foata normal form. 2/112 useless extension candidates. Maximal degree in co-relation 443. Up to 45 conditions per place. [2024-11-27 23:30:00,083 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2024-11-27 23:30:00,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 58 transitions, 593 flow [2024-11-27 23:30:00,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:30:00,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:30:00,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 43 transitions. [2024-11-27 23:30:00,084 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.25 [2024-11-27 23:30:00,084 INFO L175 Difference]: Start difference. First operand has 79 places, 59 transitions, 503 flow. Second operand 4 states and 43 transitions. [2024-11-27 23:30:00,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 58 transitions, 593 flow [2024-11-27 23:30:00,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 58 transitions, 546 flow, removed 2 selfloop flow, removed 13 redundant places. [2024-11-27 23:30:00,088 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2024-11-27 23:30:00,088 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2024-11-27 23:30:00,088 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 3 predicate places. [2024-11-27 23:30:00,088 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2024-11-27 23:30:00,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:30:00,091 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2024-11-27 23:30:00,092 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2024-11-27 23:30:00,092 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2024-11-27 23:30:00,092 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2024-11-27 23:30:00,092 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2024-11-27 23:30:00,092 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2024-11-27 23:30:00,092 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2024-11-27 23:30:00,092 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2024-11-27 23:30:00,092 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2024-11-27 23:30:00,093 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2024-11-27 23:30:00,093 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 18 remaining) [2024-11-27 23:30:00,093 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 18 remaining) [2024-11-27 23:30:00,093 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2024-11-27 23:30:00,093 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2024-11-27 23:30:00,093 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2024-11-27 23:30:00,093 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2024-11-27 23:30:00,093 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2024-11-27 23:30:00,093 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2024-11-27 23:30:00,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-27 23:30:00,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:30:00,295 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:00,301 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-27 23:30:00,301 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 23:30:00,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:30:00 BasicIcfg [2024-11-27 23:30:00,307 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 23:30:00,307 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:30:00,308 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:30:00,308 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:30:00,309 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:29:49" (3/4) ... [2024-11-27 23:30:00,310 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 23:30:00,313 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-27 23:30:00,313 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-27 23:30:00,320 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 133 nodes and edges [2024-11-27 23:30:00,321 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2024-11-27 23:30:00,321 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-27 23:30:00,321 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-27 23:30:00,413 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 23:30:00,414 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 23:30:00,414 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:30:00,415 INFO L158 Benchmark]: Toolchain (without parser) took 11997.54ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 92.4MB in the beginning and 89.5MB in the end (delta: 2.9MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2024-11-27 23:30:00,415 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 74.6MB in the end (delta: 196.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:30:00,415 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.60ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 80.3MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:30:00,416 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.53ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 78.3MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:30:00,416 INFO L158 Benchmark]: Boogie Preprocessor took 68.99ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 76.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:30:00,416 INFO L158 Benchmark]: RCFGBuilder took 1123.00ms. Allocated memory is still 117.4MB. Free memory was 76.4MB in the beginning and 72.9MB in the end (delta: 3.5MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. [2024-11-27 23:30:00,417 INFO L158 Benchmark]: TraceAbstraction took 10323.11ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 72.3MB in the beginning and 95.5MB in the end (delta: -23.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:30:00,417 INFO L158 Benchmark]: Witness Printer took 106.39ms. Allocated memory is still 142.6MB. Free memory was 95.5MB in the beginning and 89.5MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:30:00,419 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 74.6MB in the end (delta: 196.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.60ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 80.3MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.53ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 78.3MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.99ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 76.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1123.00ms. Allocated memory is still 117.4MB. Free memory was 76.4MB in the beginning and 72.9MB in the end (delta: 3.5MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. * TraceAbstraction took 10323.11ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 72.3MB in the beginning and 95.5MB in the end (delta: -23.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 106.39ms. Allocated memory is still 142.6MB. Free memory was 95.5MB in the beginning and 89.5MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: 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 5 procedures, 61 locations, 18 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: 10.2s, OverallIterations: 13, TraceHistogramMax: 11, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 675 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 612 mSDsluCounter, 214 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 199 mSDsCounter, 145 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1271 IncrementalHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 145 mSolverCounterUnsat, 15 mSDtfsCounter, 1271 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 308 GetRequests, 194 SyntacticMatches, 6 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=766occurred in iteration=11, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 307 NumberOfCodeBlocks, 259 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 388 ConstructedInterpolants, 0 QuantifiedInterpolants, 1512 SizeOfPredicates, 27 NumberOfNonLiveVariables, 1203 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 28 InterpolantComputations, 7 PerfectInterpolantSequences, 547/751 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 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-27 23:30:00,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c11dbef-c24f-40ac-bb53-5754fbed4ef5/bin/uautomizer-verify-aQ6SnzHsRB/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