./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-more-array-sum-alt.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_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/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_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-array-sum-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/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_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/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 cd36b7f18dbd530fce94e0943ff58c16da276fcc41b96fdafde87c3c69036175 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:33:22,557 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:33:22,646 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 03:33:22,651 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:33:22,651 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:33:22,674 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:33:22,675 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:33:22,675 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:33:22,675 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:33:22,675 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:33:22,675 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:33:22,676 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:33:22,676 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:33:22,676 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:33:22,676 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:33:22,676 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:33:22,676 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:33:22,676 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:33:22,676 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:33:22,677 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:33:22,677 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:33:22,677 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:33:22,677 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:33:22,677 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:33:22,677 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 03:33:22,677 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:33:22,677 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:33:22,677 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:33:22,677 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:33:22,677 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:33:22,678 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:33:22,678 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:33:22,678 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:33:22,678 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:33:22,678 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:33:22,678 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:33:22,678 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:33:22,678 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:33:22,678 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:33:22,678 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:33:22,678 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:33:22,679 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:33:22,679 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:33:22,679 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:33:22,679 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:33:22,679 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:33:22,679 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:33:22,679 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:33:22,679 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:33:22,679 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:33:22,679 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_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/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 -> cd36b7f18dbd530fce94e0943ff58c16da276fcc41b96fdafde87c3c69036175 [2024-11-28 03:33:22,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:33:22,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:33:22,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:33:22,989 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:33:22,989 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:33:22,992 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/weaver/popl20-more-array-sum-alt.wvr.c [2024-11-28 03:33:25,968 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/data/8deffd202/ef6440269a34485b83215fbffa7c54a9/FLAGf85a3c1dd [2024-11-28 03:33:26,216 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:33:26,217 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/sv-benchmarks/c/weaver/popl20-more-array-sum-alt.wvr.c [2024-11-28 03:33:26,224 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/data/8deffd202/ef6440269a34485b83215fbffa7c54a9/FLAGf85a3c1dd [2024-11-28 03:33:26,237 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/data/8deffd202/ef6440269a34485b83215fbffa7c54a9 [2024-11-28 03:33:26,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:33:26,240 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:33:26,241 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:33:26,241 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:33:26,246 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:33:26,247 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:33:26" (1/1) ... [2024-11-28 03:33:26,247 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52731dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:26, skipping insertion in model container [2024-11-28 03:33:26,248 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:33:26" (1/1) ... [2024-11-28 03:33:26,263 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:33:26,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:33:26,442 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:33:26,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:33:26,487 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:33:26,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:26 WrapperNode [2024-11-28 03:33:26,488 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:33:26,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:33:26,489 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:33:26,489 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:33:26,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:26" (1/1) ... [2024-11-28 03:33:26,511 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:26" (1/1) ... [2024-11-28 03:33:26,548 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 232 [2024-11-28 03:33:26,548 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:33:26,549 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:33:26,549 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:33:26,549 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:33:26,555 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:26" (1/1) ... [2024-11-28 03:33:26,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:26" (1/1) ... [2024-11-28 03:33:26,558 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:26" (1/1) ... [2024-11-28 03:33:26,572 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-28 03:33:26,572 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:26" (1/1) ... [2024-11-28 03:33:26,572 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:26" (1/1) ... [2024-11-28 03:33:26,579 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:26" (1/1) ... [2024-11-28 03:33:26,580 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:26" (1/1) ... [2024-11-28 03:33:26,584 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:26" (1/1) ... [2024-11-28 03:33:26,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:26" (1/1) ... [2024-11-28 03:33:26,591 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:26" (1/1) ... [2024-11-28 03:33:26,595 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:33:26,596 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:33:26,596 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:33:26,596 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:33:26,597 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:26" (1/1) ... [2024-11-28 03:33:26,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:33:26,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:26,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:33:26,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:33:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:33:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-28 03:33:26,660 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-28 03:33:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-28 03:33:26,660 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-28 03:33:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-28 03:33:26,660 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-28 03:33:26,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:33:26,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:33:26,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:33:26,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 03:33:26,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 03:33:26,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:33:26,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:33:26,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 03:33:26,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 03:33:26,663 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:33:26,794 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:33:26,795 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:33:27,278 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:33:27,278 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:33:27,652 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:33:27,652 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 03:33:27,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:33:27 BoogieIcfgContainer [2024-11-28 03:33:27,655 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:33:27,657 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:33:27,657 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:33:27,663 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:33:27,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:33:26" (1/3) ... [2024-11-28 03:33:27,664 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa775ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:33:27, skipping insertion in model container [2024-11-28 03:33:27,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:33:26" (2/3) ... [2024-11-28 03:33:27,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa775ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:33:27, skipping insertion in model container [2024-11-28 03:33:27,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:33:27" (3/3) ... [2024-11-28 03:33:27,667 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum-alt.wvr.c [2024-11-28 03:33:27,684 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:33:27,686 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-array-sum-alt.wvr.c that has 4 procedures, 90 locations, 1 initial locations, 4 loop locations, and 26 error locations. [2024-11-28 03:33:27,686 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:33:27,784 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-28 03:33:27,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 99 transitions, 219 flow [2024-11-28 03:33:27,899 INFO L124 PetriNetUnfolderBase]: 10/96 cut-off events. [2024-11-28 03:33:27,902 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-28 03:33:27,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 96 events. 10/96 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 357 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2024-11-28 03:33:27,912 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 99 transitions, 219 flow [2024-11-28 03:33:27,917 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 94 transitions, 203 flow [2024-11-28 03:33:27,930 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:33:27,948 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;@575b81cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:33:27,948 INFO L334 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2024-11-28 03:33:27,952 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:33:27,952 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-28 03:33:27,952 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:33:27,952 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:27,953 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-28 03:33:27,953 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-28 03:33:27,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:27,961 INFO L85 PathProgramCache]: Analyzing trace with hash 723805, now seen corresponding path program 1 times [2024-11-28 03:33:27,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:27,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369032730] [2024-11-28 03:33:27,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:27,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:28,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:28,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:28,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369032730] [2024-11-28 03:33:28,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369032730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:28,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:28,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:33:28,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956236865] [2024-11-28 03:33:28,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:28,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:28,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:28,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:28,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:28,313 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 99 [2024-11-28 03:33:28,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 94 transitions, 203 flow. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 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) [2024-11-28 03:33:28,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:28,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 99 [2024-11-28 03:33:28,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:29,924 INFO L124 PetriNetUnfolderBase]: 5172/10297 cut-off events. [2024-11-28 03:33:29,925 INFO L125 PetriNetUnfolderBase]: For 276/276 co-relation queries the response was YES. [2024-11-28 03:33:29,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17434 conditions, 10297 events. 5172/10297 cut-off events. For 276/276 co-relation queries the response was YES. Maximal size of possible extension queue 527. Compared 88967 event pairs, 3548 based on Foata normal form. 1/8369 useless extension candidates. Maximal degree in co-relation 16640. Up to 6879 conditions per place. [2024-11-28 03:33:30,054 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 38 selfloop transitions, 4 changer transitions 0/93 dead transitions. [2024-11-28 03:33:30,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 93 transitions, 285 flow [2024-11-28 03:33:30,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:30,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:33:30,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 259 transitions. [2024-11-28 03:33:30,075 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6540404040404041 [2024-11-28 03:33:30,077 INFO L175 Difference]: Start difference. First operand has 94 places, 94 transitions, 203 flow. Second operand 4 states and 259 transitions. [2024-11-28 03:33:30,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 93 transitions, 285 flow [2024-11-28 03:33:30,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 93 transitions, 276 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:33:30,092 INFO L231 Difference]: Finished difference. Result has 91 places, 93 transitions, 200 flow [2024-11-28 03:33:30,095 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=200, PETRI_PLACES=91, PETRI_TRANSITIONS=93} [2024-11-28 03:33:30,102 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, -3 predicate places. [2024-11-28 03:33:30,102 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 93 transitions, 200 flow [2024-11-28 03:33:30,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 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) [2024-11-28 03:33:30,103 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:30,103 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-28 03:33:30,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:33:30,104 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-28 03:33:30,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:30,105 INFO L85 PathProgramCache]: Analyzing trace with hash 22438731, now seen corresponding path program 1 times [2024-11-28 03:33:30,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:30,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398753076] [2024-11-28 03:33:30,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:30,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:30,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:30,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:30,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:30,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398753076] [2024-11-28 03:33:30,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398753076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:30,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:30,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:33:30,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100162473] [2024-11-28 03:33:30,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:30,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:30,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:30,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:30,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:30,262 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 99 [2024-11-28 03:33:30,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 93 transitions, 200 flow. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 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) [2024-11-28 03:33:30,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:30,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 99 [2024-11-28 03:33:30,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:31,422 INFO L124 PetriNetUnfolderBase]: 5173/10301 cut-off events. [2024-11-28 03:33:31,422 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2024-11-28 03:33:31,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17348 conditions, 10301 events. 5173/10301 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 527. Compared 88913 event pairs, 3548 based on Foata normal form. 1/8373 useless extension candidates. Maximal degree in co-relation 17320. Up to 6884 conditions per place. [2024-11-28 03:33:31,519 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 41 selfloop transitions, 4 changer transitions 0/96 dead transitions. [2024-11-28 03:33:31,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 96 transitions, 302 flow [2024-11-28 03:33:31,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:31,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:33:31,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 262 transitions. [2024-11-28 03:33:31,523 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6616161616161617 [2024-11-28 03:33:31,523 INFO L175 Difference]: Start difference. First operand has 91 places, 93 transitions, 200 flow. Second operand 4 states and 262 transitions. [2024-11-28 03:33:31,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 96 transitions, 302 flow [2024-11-28 03:33:31,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 96 transitions, 288 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:33:31,530 INFO L231 Difference]: Finished difference. Result has 93 places, 96 transitions, 219 flow [2024-11-28 03:33:31,531 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=219, PETRI_PLACES=93, PETRI_TRANSITIONS=96} [2024-11-28 03:33:31,531 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, -1 predicate places. [2024-11-28 03:33:31,531 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 96 transitions, 219 flow [2024-11-28 03:33:31,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 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) [2024-11-28 03:33:31,532 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:31,532 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-28 03:33:31,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:33:31,533 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-28 03:33:31,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:31,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1541941863, now seen corresponding path program 1 times [2024-11-28 03:33:31,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:31,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010280891] [2024-11-28 03:33:31,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:31,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:31,719 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:31,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:31,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010280891] [2024-11-28 03:33:31,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010280891] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:31,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034823201] [2024-11-28 03:33:31,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:31,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:31,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:31,722 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:31,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:33:31,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:31,817 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:33:31,821 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:31,869 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:31,872 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:33:31,941 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:31,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034823201] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:33:31,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:33:31,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-28 03:33:31,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832485970] [2024-11-28 03:33:31,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:33:31,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:33:31,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:31,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:33:31,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:33:31,970 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 99 [2024-11-28 03:33:31,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 96 transitions, 219 flow. Second operand has 10 states, 10 states have (on average 55.0) internal successors, (550), 10 states have internal predecessors, (550), 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) [2024-11-28 03:33:31,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:31,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 99 [2024-11-28 03:33:31,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:33,238 INFO L124 PetriNetUnfolderBase]: 5176/10313 cut-off events. [2024-11-28 03:33:33,239 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2024-11-28 03:33:33,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17384 conditions, 10313 events. 5176/10313 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 527. Compared 89153 event pairs, 3548 based on Foata normal form. 0/8381 useless extension candidates. Maximal degree in co-relation 17327. Up to 6887 conditions per place. [2024-11-28 03:33:33,307 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 41 selfloop transitions, 13 changer transitions 0/105 dead transitions. [2024-11-28 03:33:33,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 105 transitions, 363 flow [2024-11-28 03:33:33,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:33:33,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 03:33:33,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 597 transitions. [2024-11-28 03:33:33,313 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.603030303030303 [2024-11-28 03:33:33,313 INFO L175 Difference]: Start difference. First operand has 93 places, 96 transitions, 219 flow. Second operand 10 states and 597 transitions. [2024-11-28 03:33:33,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 105 transitions, 363 flow [2024-11-28 03:33:33,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 105 transitions, 360 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:33:33,317 INFO L231 Difference]: Finished difference. Result has 104 places, 105 transitions, 296 flow [2024-11-28 03:33:33,318 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=296, PETRI_PLACES=104, PETRI_TRANSITIONS=105} [2024-11-28 03:33:33,319 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 10 predicate places. [2024-11-28 03:33:33,319 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 105 transitions, 296 flow [2024-11-28 03:33:33,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 55.0) internal successors, (550), 10 states have internal predecessors, (550), 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) [2024-11-28 03:33:33,320 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:33,320 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:33,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:33:33,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:33,525 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-28 03:33:33,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:33,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1420817692, now seen corresponding path program 1 times [2024-11-28 03:33:33,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:33,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044076036] [2024-11-28 03:33:33,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:33,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:33,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:33,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:33,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044076036] [2024-11-28 03:33:33,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044076036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:33,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:33,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:33:33,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819479052] [2024-11-28 03:33:33,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:33,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:33,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:33,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:33,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:33,692 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 99 [2024-11-28 03:33:33,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 105 transitions, 296 flow. Second operand has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 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) [2024-11-28 03:33:33,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:33,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 99 [2024-11-28 03:33:33,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:35,550 INFO L124 PetriNetUnfolderBase]: 9900/17797 cut-off events. [2024-11-28 03:33:35,551 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2024-11-28 03:33:35,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31367 conditions, 17797 events. 9900/17797 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 902. Compared 152642 event pairs, 3200 based on Foata normal form. 444/15061 useless extension candidates. Maximal degree in co-relation 31331. Up to 6301 conditions per place. [2024-11-28 03:33:35,677 INFO L140 encePairwiseOnDemand]: 91/99 looper letters, 107 selfloop transitions, 5 changer transitions 0/158 dead transitions. [2024-11-28 03:33:35,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 158 transitions, 632 flow [2024-11-28 03:33:35,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:35,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:33:35,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 303 transitions. [2024-11-28 03:33:35,679 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7651515151515151 [2024-11-28 03:33:35,680 INFO L175 Difference]: Start difference. First operand has 104 places, 105 transitions, 296 flow. Second operand 4 states and 303 transitions. [2024-11-28 03:33:35,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 158 transitions, 632 flow [2024-11-28 03:33:35,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 158 transitions, 602 flow, removed 11 selfloop flow, removed 3 redundant places. [2024-11-28 03:33:35,686 INFO L231 Difference]: Finished difference. Result has 106 places, 107 transitions, 300 flow [2024-11-28 03:33:35,686 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=300, PETRI_PLACES=106, PETRI_TRANSITIONS=107} [2024-11-28 03:33:35,687 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 12 predicate places. [2024-11-28 03:33:35,688 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 107 transitions, 300 flow [2024-11-28 03:33:35,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 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) [2024-11-28 03:33:35,689 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:35,689 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:35,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:33:35,689 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-28 03:33:35,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:35,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1095674702, now seen corresponding path program 1 times [2024-11-28 03:33:35,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:35,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060452213] [2024-11-28 03:33:35,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:35,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:35,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:35,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:35,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060452213] [2024-11-28 03:33:35,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060452213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:35,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:35,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:33:35,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603659002] [2024-11-28 03:33:35,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:35,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:33:35,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:35,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:33:35,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:35,874 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 99 [2024-11-28 03:33:35,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 107 transitions, 300 flow. Second operand has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 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) [2024-11-28 03:33:35,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:35,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 99 [2024-11-28 03:33:35,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:37,486 INFO L124 PetriNetUnfolderBase]: 8135/16396 cut-off events. [2024-11-28 03:33:37,487 INFO L125 PetriNetUnfolderBase]: For 2711/3053 co-relation queries the response was YES. [2024-11-28 03:33:37,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29550 conditions, 16396 events. 8135/16396 cut-off events. For 2711/3053 co-relation queries the response was YES. Maximal size of possible extension queue 768. Compared 152167 event pairs, 5292 based on Foata normal form. 395/14089 useless extension candidates. Maximal degree in co-relation 29516. Up to 8594 conditions per place. [2024-11-28 03:33:37,586 INFO L140 encePairwiseOnDemand]: 93/99 looper letters, 105 selfloop transitions, 5 changer transitions 0/162 dead transitions. [2024-11-28 03:33:37,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 162 transitions, 639 flow [2024-11-28 03:33:37,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:33:37,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:33:37,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 380 transitions. [2024-11-28 03:33:37,588 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7676767676767676 [2024-11-28 03:33:37,588 INFO L175 Difference]: Start difference. First operand has 106 places, 107 transitions, 300 flow. Second operand 5 states and 380 transitions. [2024-11-28 03:33:37,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 162 transitions, 639 flow [2024-11-28 03:33:37,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 162 transitions, 639 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:33:37,658 INFO L231 Difference]: Finished difference. Result has 112 places, 109 transitions, 325 flow [2024-11-28 03:33:37,658 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=325, PETRI_PLACES=112, PETRI_TRANSITIONS=109} [2024-11-28 03:33:37,659 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 18 predicate places. [2024-11-28 03:33:37,659 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 109 transitions, 325 flow [2024-11-28 03:33:37,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 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) [2024-11-28 03:33:37,659 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:37,659 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:37,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:33:37,660 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-28 03:33:37,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:37,660 INFO L85 PathProgramCache]: Analyzing trace with hash 242086880, now seen corresponding path program 1 times [2024-11-28 03:33:37,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:37,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955418501] [2024-11-28 03:33:37,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:37,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:37,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:37,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:37,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955418501] [2024-11-28 03:33:37,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955418501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:37,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:37,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:33:37,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854214497] [2024-11-28 03:33:37,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:37,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:37,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:37,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:37,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:37,748 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 99 [2024-11-28 03:33:37,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 109 transitions, 325 flow. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 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) [2024-11-28 03:33:37,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:37,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 99 [2024-11-28 03:33:37,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:39,835 INFO L124 PetriNetUnfolderBase]: 14662/27415 cut-off events. [2024-11-28 03:33:39,835 INFO L125 PetriNetUnfolderBase]: For 8154/8703 co-relation queries the response was YES. [2024-11-28 03:33:39,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53514 conditions, 27415 events. 14662/27415 cut-off events. For 8154/8703 co-relation queries the response was YES. Maximal size of possible extension queue 1342. Compared 257263 event pairs, 5152 based on Foata normal form. 948/23741 useless extension candidates. Maximal degree in co-relation 53477. Up to 9929 conditions per place. [2024-11-28 03:33:39,974 INFO L140 encePairwiseOnDemand]: 91/99 looper letters, 115 selfloop transitions, 5 changer transitions 0/166 dead transitions. [2024-11-28 03:33:39,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 166 transitions, 749 flow [2024-11-28 03:33:39,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:39,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:33:39,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 299 transitions. [2024-11-28 03:33:39,976 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7550505050505051 [2024-11-28 03:33:39,976 INFO L175 Difference]: Start difference. First operand has 112 places, 109 transitions, 325 flow. Second operand 4 states and 299 transitions. [2024-11-28 03:33:39,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 166 transitions, 749 flow [2024-11-28 03:33:39,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 166 transitions, 744 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:33:39,998 INFO L231 Difference]: Finished difference. Result has 115 places, 111 transitions, 354 flow [2024-11-28 03:33:39,998 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=354, PETRI_PLACES=115, PETRI_TRANSITIONS=111} [2024-11-28 03:33:40,000 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 21 predicate places. [2024-11-28 03:33:40,000 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 111 transitions, 354 flow [2024-11-28 03:33:40,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 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) [2024-11-28 03:33:40,001 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:40,001 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:40,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:33:40,001 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-28 03:33:40,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:40,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1085240497, now seen corresponding path program 1 times [2024-11-28 03:33:40,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:40,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745548430] [2024-11-28 03:33:40,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:40,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:40,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:40,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:40,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:40,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745548430] [2024-11-28 03:33:40,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745548430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:40,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:40,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:33:40,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467218429] [2024-11-28 03:33:40,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:40,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:33:40,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:40,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:33:40,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:40,139 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 99 [2024-11-28 03:33:40,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 111 transitions, 354 flow. Second operand has 5 states, 5 states have (on average 57.4) internal successors, (287), 5 states have internal predecessors, (287), 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) [2024-11-28 03:33:40,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:40,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 99 [2024-11-28 03:33:40,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:41,549 INFO L124 PetriNetUnfolderBase]: 8097/17109 cut-off events. [2024-11-28 03:33:41,549 INFO L125 PetriNetUnfolderBase]: For 7030/7811 co-relation queries the response was YES. [2024-11-28 03:33:41,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33593 conditions, 17109 events. 8097/17109 cut-off events. For 7030/7811 co-relation queries the response was YES. Maximal size of possible extension queue 874. Compared 167034 event pairs, 5664 based on Foata normal form. 471/14939 useless extension candidates. Maximal degree in co-relation 33554. Up to 10271 conditions per place. [2024-11-28 03:33:41,639 INFO L140 encePairwiseOnDemand]: 93/99 looper letters, 88 selfloop transitions, 5 changer transitions 2/147 dead transitions. [2024-11-28 03:33:41,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 147 transitions, 633 flow [2024-11-28 03:33:41,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:33:41,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:33:41,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 363 transitions. [2024-11-28 03:33:41,641 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2024-11-28 03:33:41,641 INFO L175 Difference]: Start difference. First operand has 115 places, 111 transitions, 354 flow. Second operand 5 states and 363 transitions. [2024-11-28 03:33:41,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 147 transitions, 633 flow [2024-11-28 03:33:41,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 147 transitions, 633 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:33:41,657 INFO L231 Difference]: Finished difference. Result has 121 places, 113 transitions, 379 flow [2024-11-28 03:33:41,657 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=379, PETRI_PLACES=121, PETRI_TRANSITIONS=113} [2024-11-28 03:33:41,658 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 27 predicate places. [2024-11-28 03:33:41,658 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 113 transitions, 379 flow [2024-11-28 03:33:41,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.4) internal successors, (287), 5 states have internal predecessors, (287), 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) [2024-11-28 03:33:41,658 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:41,658 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:41,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:33:41,659 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-28 03:33:41,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:41,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1672802304, now seen corresponding path program 1 times [2024-11-28 03:33:41,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:41,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518633850] [2024-11-28 03:33:41,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:41,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:41,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:42,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:42,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:42,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518633850] [2024-11-28 03:33:42,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518633850] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:42,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111362172] [2024-11-28 03:33:42,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:42,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:42,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:42,077 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:42,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:33:42,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:42,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 03:33:42,167 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:42,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 03:33:42,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-28 03:33:42,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:42,299 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:33:42,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2024-11-28 03:33:42,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2024-11-28 03:33:42,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:42,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111362172] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:33:42,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:33:42,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-28 03:33:42,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857936684] [2024-11-28 03:33:42,424 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:33:42,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:33:42,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:42,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:33:42,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:33:42,525 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 99 [2024-11-28 03:33:42,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 113 transitions, 379 flow. Second operand has 13 states, 13 states have (on average 54.38461538461539) internal successors, (707), 13 states have internal predecessors, (707), 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) [2024-11-28 03:33:42,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:42,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 99 [2024-11-28 03:33:42,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:46,521 INFO L124 PetriNetUnfolderBase]: 19198/37811 cut-off events. [2024-11-28 03:33:46,521 INFO L125 PetriNetUnfolderBase]: For 17716/18841 co-relation queries the response was YES. [2024-11-28 03:33:46,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79572 conditions, 37811 events. 19198/37811 cut-off events. For 17716/18841 co-relation queries the response was YES. Maximal size of possible extension queue 1305. Compared 374354 event pairs, 5386 based on Foata normal form. 655/33954 useless extension candidates. Maximal degree in co-relation 79530. Up to 8842 conditions per place. [2024-11-28 03:33:46,778 INFO L140 encePairwiseOnDemand]: 86/99 looper letters, 183 selfloop transitions, 19 changer transitions 1/253 dead transitions. [2024-11-28 03:33:46,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 253 transitions, 1205 flow [2024-11-28 03:33:46,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:33:46,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 03:33:46,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 713 transitions. [2024-11-28 03:33:46,780 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7202020202020202 [2024-11-28 03:33:46,780 INFO L175 Difference]: Start difference. First operand has 121 places, 113 transitions, 379 flow. Second operand 10 states and 713 transitions. [2024-11-28 03:33:46,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 253 transitions, 1205 flow [2024-11-28 03:33:46,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 253 transitions, 1200 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:33:46,897 INFO L231 Difference]: Finished difference. Result has 131 places, 122 transitions, 487 flow [2024-11-28 03:33:46,897 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=487, PETRI_PLACES=131, PETRI_TRANSITIONS=122} [2024-11-28 03:33:46,897 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 37 predicate places. [2024-11-28 03:33:46,898 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 122 transitions, 487 flow [2024-11-28 03:33:46,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 54.38461538461539) internal successors, (707), 13 states have internal predecessors, (707), 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) [2024-11-28 03:33:46,898 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:46,898 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:46,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:33:47,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:47,099 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-28 03:33:47,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:47,099 INFO L85 PathProgramCache]: Analyzing trace with hash -377306113, now seen corresponding path program 1 times [2024-11-28 03:33:47,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:47,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48827199] [2024-11-28 03:33:47,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:47,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:47,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:47,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:47,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48827199] [2024-11-28 03:33:47,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48827199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:47,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:47,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:33:47,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581553770] [2024-11-28 03:33:47,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:47,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:33:47,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:47,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:33:47,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:33:47,189 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 99 [2024-11-28 03:33:47,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 122 transitions, 487 flow. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:47,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:47,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 99 [2024-11-28 03:33:47,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:52,049 INFO L124 PetriNetUnfolderBase]: 28450/53375 cut-off events. [2024-11-28 03:33:52,049 INFO L125 PetriNetUnfolderBase]: For 54606/57785 co-relation queries the response was YES. [2024-11-28 03:33:52,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125480 conditions, 53375 events. 28450/53375 cut-off events. For 54606/57785 co-relation queries the response was YES. Maximal size of possible extension queue 1815. Compared 532071 event pairs, 11309 based on Foata normal form. 2368/49112 useless extension candidates. Maximal degree in co-relation 125434. Up to 20717 conditions per place. [2024-11-28 03:33:52,506 INFO L140 encePairwiseOnDemand]: 91/99 looper letters, 149 selfloop transitions, 5 changer transitions 0/201 dead transitions. [2024-11-28 03:33:52,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 201 transitions, 1217 flow [2024-11-28 03:33:52,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:33:52,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:33:52,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 297 transitions. [2024-11-28 03:33:52,508 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-11-28 03:33:52,508 INFO L175 Difference]: Start difference. First operand has 131 places, 122 transitions, 487 flow. Second operand 4 states and 297 transitions. [2024-11-28 03:33:52,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 201 transitions, 1217 flow [2024-11-28 03:33:52,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 201 transitions, 1179 flow, removed 12 selfloop flow, removed 4 redundant places. [2024-11-28 03:33:52,686 INFO L231 Difference]: Finished difference. Result has 132 places, 124 transitions, 503 flow [2024-11-28 03:33:52,686 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=503, PETRI_PLACES=132, PETRI_TRANSITIONS=124} [2024-11-28 03:33:52,687 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 38 predicate places. [2024-11-28 03:33:52,687 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 124 transitions, 503 flow [2024-11-28 03:33:52,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:33:52,687 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:52,687 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:52,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:33:52,687 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-28 03:33:52,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:52,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1188413227, now seen corresponding path program 1 times [2024-11-28 03:33:52,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:52,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124686897] [2024-11-28 03:33:52,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:52,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:52,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:52,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:52,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124686897] [2024-11-28 03:33:52,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124686897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:52,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:52,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:33:52,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70850605] [2024-11-28 03:33:52,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:52,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:33:52,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:52,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:33:52,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:33:52,811 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 99 [2024-11-28 03:33:52,812 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 124 transitions, 503 flow. Second operand has 5 states, 5 states have (on average 57.8) internal successors, (289), 5 states have internal predecessors, (289), 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) [2024-11-28 03:33:52,812 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:52,812 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 99 [2024-11-28 03:33:52,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:33:56,487 INFO L124 PetriNetUnfolderBase]: 19859/42505 cut-off events. [2024-11-28 03:33:56,487 INFO L125 PetriNetUnfolderBase]: For 40474/43171 co-relation queries the response was YES. [2024-11-28 03:33:56,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98444 conditions, 42505 events. 19859/42505 cut-off events. For 40474/43171 co-relation queries the response was YES. Maximal size of possible extension queue 1569. Compared 465921 event pairs, 14560 based on Foata normal form. 1139/39031 useless extension candidates. Maximal degree in co-relation 98397. Up to 26029 conditions per place. [2024-11-28 03:33:56,730 INFO L140 encePairwiseOnDemand]: 93/99 looper letters, 64 selfloop transitions, 2 changer transitions 22/141 dead transitions. [2024-11-28 03:33:56,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 141 transitions, 735 flow [2024-11-28 03:33:56,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:33:56,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:33:56,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 346 transitions. [2024-11-28 03:33:56,731 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6989898989898989 [2024-11-28 03:33:56,731 INFO L175 Difference]: Start difference. First operand has 132 places, 124 transitions, 503 flow. Second operand 5 states and 346 transitions. [2024-11-28 03:33:56,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 141 transitions, 735 flow [2024-11-28 03:33:56,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 141 transitions, 735 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:33:56,955 INFO L231 Difference]: Finished difference. Result has 138 places, 119 transitions, 484 flow [2024-11-28 03:33:56,955 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=484, PETRI_PLACES=138, PETRI_TRANSITIONS=119} [2024-11-28 03:33:56,956 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 44 predicate places. [2024-11-28 03:33:56,956 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 119 transitions, 484 flow [2024-11-28 03:33:56,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.8) internal successors, (289), 5 states have internal predecessors, (289), 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) [2024-11-28 03:33:56,956 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:33:56,956 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:56,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:33:56,956 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-28 03:33:56,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:56,957 INFO L85 PathProgramCache]: Analyzing trace with hash 317232890, now seen corresponding path program 1 times [2024-11-28 03:33:56,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:33:56,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437116269] [2024-11-28 03:33:56,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:56,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:33:56,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:57,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:57,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:33:57,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437116269] [2024-11-28 03:33:57,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437116269] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:57,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289685983] [2024-11-28 03:33:57,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:57,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:33:57,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:33:57,271 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:33:57,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:33:57,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:57,344 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 03:33:57,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:57,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 03:33:57,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-28 03:33:57,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:57,419 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:33:57,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2024-11-28 03:33:57,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2024-11-28 03:33:57,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:33:57,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289685983] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:33:57,510 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:33:57,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-28 03:33:57,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280872815] [2024-11-28 03:33:57,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:33:57,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:33:57,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:33:57,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:33:57,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:33:57,583 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 99 [2024-11-28 03:33:57,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 119 transitions, 484 flow. Second operand has 13 states, 13 states have (on average 52.53846153846154) internal successors, (683), 13 states have internal predecessors, (683), 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) [2024-11-28 03:33:57,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:33:57,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 99 [2024-11-28 03:33:57,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:34:02,652 INFO L124 PetriNetUnfolderBase]: 27381/49887 cut-off events. [2024-11-28 03:34:02,653 INFO L125 PetriNetUnfolderBase]: For 50217/52947 co-relation queries the response was YES. [2024-11-28 03:34:02,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123282 conditions, 49887 events. 27381/49887 cut-off events. For 50217/52947 co-relation queries the response was YES. Maximal size of possible extension queue 1682. Compared 479955 event pairs, 7040 based on Foata normal form. 1739/47427 useless extension candidates. Maximal degree in co-relation 123243. Up to 14356 conditions per place. [2024-11-28 03:34:03,001 INFO L140 encePairwiseOnDemand]: 86/99 looper letters, 176 selfloop transitions, 18 changer transitions 0/241 dead transitions. [2024-11-28 03:34:03,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 241 transitions, 1328 flow [2024-11-28 03:34:03,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:34:03,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 03:34:03,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 670 transitions. [2024-11-28 03:34:03,004 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6767676767676768 [2024-11-28 03:34:03,004 INFO L175 Difference]: Start difference. First operand has 138 places, 119 transitions, 484 flow. Second operand 10 states and 670 transitions. [2024-11-28 03:34:03,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 241 transitions, 1328 flow [2024-11-28 03:34:03,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 241 transitions, 1260 flow, removed 32 selfloop flow, removed 7 redundant places. [2024-11-28 03:34:03,186 INFO L231 Difference]: Finished difference. Result has 136 places, 121 transitions, 526 flow [2024-11-28 03:34:03,186 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=526, PETRI_PLACES=136, PETRI_TRANSITIONS=121} [2024-11-28 03:34:03,187 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 42 predicate places. [2024-11-28 03:34:03,187 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 121 transitions, 526 flow [2024-11-28 03:34:03,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 52.53846153846154) internal successors, (683), 13 states have internal predecessors, (683), 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) [2024-11-28 03:34:03,187 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:34:03,187 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:34:03,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:34:03,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 03:34:03,392 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-28 03:34:03,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:03,392 INFO L85 PathProgramCache]: Analyzing trace with hash 836406045, now seen corresponding path program 1 times [2024-11-28 03:34:03,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:03,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487875396] [2024-11-28 03:34:03,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:03,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:03,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:34:03,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:03,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487875396] [2024-11-28 03:34:03,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487875396] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:34:03,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255491438] [2024-11-28 03:34:03,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:03,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:03,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:34:03,703 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:34:03,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:34:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:03,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 03:34:03,792 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:34:03,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 03:34:03,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-28 03:34:03,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:34:03,911 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:34:04,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2024-11-28 03:34:04,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2024-11-28 03:34:04,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:34:04,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255491438] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:34:04,035 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:34:04,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-28 03:34:04,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765972510] [2024-11-28 03:34:04,036 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:34:04,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:34:04,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:04,036 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:34:04,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:34:04,125 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 99 [2024-11-28 03:34:04,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 121 transitions, 526 flow. Second operand has 13 states, 13 states have (on average 54.69230769230769) internal successors, (711), 13 states have internal predecessors, (711), 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) [2024-11-28 03:34:04,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:34:04,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 99 [2024-11-28 03:34:04,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:34:12,390 INFO L124 PetriNetUnfolderBase]: 42785/85141 cut-off events. [2024-11-28 03:34:12,390 INFO L125 PetriNetUnfolderBase]: For 101508/106166 co-relation queries the response was YES. [2024-11-28 03:34:12,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204310 conditions, 85141 events. 42785/85141 cut-off events. For 101508/106166 co-relation queries the response was YES. Maximal size of possible extension queue 2444. Compared 926087 event pairs, 10800 based on Foata normal form. 2760/79997 useless extension candidates. Maximal degree in co-relation 204264. Up to 20920 conditions per place. [2024-11-28 03:34:12,917 INFO L140 encePairwiseOnDemand]: 86/99 looper letters, 205 selfloop transitions, 18 changer transitions 0/276 dead transitions. [2024-11-28 03:34:12,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 276 transitions, 1776 flow [2024-11-28 03:34:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:34:12,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 03:34:12,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 683 transitions. [2024-11-28 03:34:12,920 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6898989898989899 [2024-11-28 03:34:12,920 INFO L175 Difference]: Start difference. First operand has 136 places, 121 transitions, 526 flow. Second operand 10 states and 683 transitions. [2024-11-28 03:34:12,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 276 transitions, 1776 flow [2024-11-28 03:34:13,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 276 transitions, 1704 flow, removed 1 selfloop flow, removed 7 redundant places. [2024-11-28 03:34:13,537 INFO L231 Difference]: Finished difference. Result has 141 places, 130 transitions, 609 flow [2024-11-28 03:34:13,538 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=609, PETRI_PLACES=141, PETRI_TRANSITIONS=130} [2024-11-28 03:34:13,538 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 47 predicate places. [2024-11-28 03:34:13,538 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 130 transitions, 609 flow [2024-11-28 03:34:13,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 54.69230769230769) internal successors, (711), 13 states have internal predecessors, (711), 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) [2024-11-28 03:34:13,539 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:34:13,539 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:34:13,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 03:34:13,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_086ce9ad-a786-46b9-857d-d7ff5a5c92a8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 03:34:13,741 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-28 03:34:13,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:13,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1244285795, now seen corresponding path program 1 times [2024-11-28 03:34:13,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:34:13,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630720300] [2024-11-28 03:34:13,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:13,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:34:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:13,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:34:13,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:34:13,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630720300] [2024-11-28 03:34:13,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630720300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:34:13,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:34:13,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:34:13,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835710067] [2024-11-28 03:34:13,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:34:13,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:34:13,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:34:13,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:34:13,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:34:13,833 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 99 [2024-11-28 03:34:13,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 130 transitions, 609 flow. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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) [2024-11-28 03:34:13,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:34:13,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 99 [2024-11-28 03:34:13,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand