./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-simpl-str-trans.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_ea06197e-d4db-4201-9deb-d0ad108d95ed/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea06197e-d4db-4201-9deb-d0ad108d95ed/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_ea06197e-d4db-4201-9deb-d0ad108d95ed/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea06197e-d4db-4201-9deb-d0ad108d95ed/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea06197e-d4db-4201-9deb-d0ad108d95ed/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_ea06197e-d4db-4201-9deb-d0ad108d95ed/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 f7b74cf7a2419cab3ab4545eb4bb4cb738b0dd565da7b17a0ca0e4253475f1b6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:00:09,370 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:00:09,454 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea06197e-d4db-4201-9deb-d0ad108d95ed/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 04:00:09,465 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:00:09,465 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:00:09,500 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:00:09,502 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:00:09,502 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:00:09,503 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:00:09,503 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:00:09,504 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:00:09,504 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:00:09,505 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:00:09,505 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:00:09,505 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:00:09,505 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:00:09,506 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:00:09,506 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:00:09,506 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:00:09,506 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:00:09,506 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:00:09,506 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:00:09,506 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:00:09,506 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:00:09,506 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 04:00:09,506 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:00:09,506 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:00:09,507 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:00:09,507 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:00:09,507 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:00:09,507 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:00:09,507 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:00:09,507 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:00:09,507 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:00:09,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:00:09,508 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:00:09,508 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:00:09,508 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:00:09,508 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:00:09,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:00:09,509 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:00:09,509 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:00:09,509 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:00:09,509 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:00:09,509 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:00:09,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:00:09,509 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:00:09,509 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:00:09,509 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:00:09,510 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:00:09,510 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_ea06197e-d4db-4201-9deb-d0ad108d95ed/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 -> f7b74cf7a2419cab3ab4545eb4bb4cb738b0dd565da7b17a0ca0e4253475f1b6 [2024-11-28 04:00:09,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:00:09,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:00:09,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:00:09,844 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:00:09,844 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:00:09,845 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea06197e-d4db-4201-9deb-d0ad108d95ed/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c [2024-11-28 04:00:12,840 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea06197e-d4db-4201-9deb-d0ad108d95ed/bin/uautomizer-verify-aQ6SnzHsRB/data/537ab375a/11c0be9ac83746fa9ae36fb3177ac05b/FLAG20e7c574b [2024-11-28 04:00:13,126 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:00:13,128 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea06197e-d4db-4201-9deb-d0ad108d95ed/sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c [2024-11-28 04:00:13,136 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea06197e-d4db-4201-9deb-d0ad108d95ed/bin/uautomizer-verify-aQ6SnzHsRB/data/537ab375a/11c0be9ac83746fa9ae36fb3177ac05b/FLAG20e7c574b [2024-11-28 04:00:13,152 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea06197e-d4db-4201-9deb-d0ad108d95ed/bin/uautomizer-verify-aQ6SnzHsRB/data/537ab375a/11c0be9ac83746fa9ae36fb3177ac05b [2024-11-28 04:00:13,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:00:13,156 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:00:13,157 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:00:13,157 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:00:13,162 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:00:13,163 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:00:13" (1/1) ... [2024-11-28 04:00:13,164 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c971b92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:13, skipping insertion in model container [2024-11-28 04:00:13,164 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:00:13" (1/1) ... [2024-11-28 04:00:13,184 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:00:13,412 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:00:13,425 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:00:13,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:00:13,481 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:00:13,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:13 WrapperNode [2024-11-28 04:00:13,482 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:00:13,483 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:00:13,484 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:00:13,484 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:00:13,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:13" (1/1) ... [2024-11-28 04:00:13,504 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:13" (1/1) ... [2024-11-28 04:00:13,537 INFO L138 Inliner]: procedures = 22, calls = 16, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 197 [2024-11-28 04:00:13,542 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:00:13,543 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:00:13,543 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:00:13,543 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:00:13,553 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:13" (1/1) ... [2024-11-28 04:00:13,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:13" (1/1) ... [2024-11-28 04:00:13,561 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:13" (1/1) ... [2024-11-28 04:00:13,585 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:00:13,585 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:13" (1/1) ... [2024-11-28 04:00:13,586 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:13" (1/1) ... [2024-11-28 04:00:13,591 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:13" (1/1) ... [2024-11-28 04:00:13,593 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:13" (1/1) ... [2024-11-28 04:00:13,595 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:13" (1/1) ... [2024-11-28 04:00:13,597 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:13" (1/1) ... [2024-11-28 04:00:13,598 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:13" (1/1) ... [2024-11-28 04:00:13,600 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:00:13,601 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:00:13,601 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:00:13,601 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:00:13,602 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:13" (1/1) ... [2024-11-28 04:00:13,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:00:13,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea06197e-d4db-4201-9deb-d0ad108d95ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:13,643 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea06197e-d4db-4201-9deb-d0ad108d95ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:00:13,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea06197e-d4db-4201-9deb-d0ad108d95ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:00:13,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:00:13,670 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-28 04:00:13,670 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-28 04:00:13,670 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-28 04:00:13,670 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-28 04:00:13,670 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-28 04:00:13,670 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-28 04:00:13,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:00:13,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:00:13,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:00:13,672 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 04:00:13,791 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:00:13,793 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:00:14,246 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:00:14,246 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:00:14,570 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:00:14,571 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:00:14,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:00:14 BoogieIcfgContainer [2024-11-28 04:00:14,571 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:00:14,574 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:00:14,575 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:00:14,580 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:00:14,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:00:13" (1/3) ... [2024-11-28 04:00:14,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2380b818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:00:14, skipping insertion in model container [2024-11-28 04:00:14,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:13" (2/3) ... [2024-11-28 04:00:14,582 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2380b818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:00:14, skipping insertion in model container [2024-11-28 04:00:14,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:00:14" (3/3) ... [2024-11-28 04:00:14,584 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-trans.wvr.c [2024-11-28 04:00:14,599 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:00:14,601 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-simpl-str-trans.wvr.c that has 4 procedures, 78 locations, 1 initial locations, 0 loop locations, and 18 error locations. [2024-11-28 04:00:14,601 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 04:00:14,706 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-28 04:00:14,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 89 transitions, 199 flow [2024-11-28 04:00:14,797 INFO L124 PetriNetUnfolderBase]: 12/86 cut-off events. [2024-11-28 04:00:14,800 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-28 04:00:14,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 86 events. 12/86 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 313 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2024-11-28 04:00:14,805 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 89 transitions, 199 flow [2024-11-28 04:00:14,810 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 84 transitions, 183 flow [2024-11-28 04:00:14,818 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:00:14,837 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;@ff9295f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:00:14,837 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-11-28 04:00:14,849 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:00:14,849 INFO L124 PetriNetUnfolderBase]: 2/25 cut-off events. [2024-11-28 04:00:14,849 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 04:00:14,849 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:14,850 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:14,851 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 04:00:14,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:14,856 INFO L85 PathProgramCache]: Analyzing trace with hash -629453063, now seen corresponding path program 1 times [2024-11-28 04:00:14,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:14,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990226580] [2024-11-28 04:00:14,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:14,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:14,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:15,135 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 04:00:15,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:15,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990226580] [2024-11-28 04:00:15,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990226580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:15,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:15,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:00:15,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226237677] [2024-11-28 04:00:15,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:15,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:00:15,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:15,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:00:15,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:00:15,216 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-11-28 04:00:15,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 84 transitions, 183 flow. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:15,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:15,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-11-28 04:00:15,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:17,230 INFO L124 PetriNetUnfolderBase]: 8633/13840 cut-off events. [2024-11-28 04:00:17,231 INFO L125 PetriNetUnfolderBase]: For 268/268 co-relation queries the response was YES. [2024-11-28 04:00:17,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25678 conditions, 13840 events. 8633/13840 cut-off events. For 268/268 co-relation queries the response was YES. Maximal size of possible extension queue 853. Compared 105712 event pairs, 2832 based on Foata normal form. 364/11549 useless extension candidates. Maximal degree in co-relation 24979. Up to 5668 conditions per place. [2024-11-28 04:00:17,403 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 86 selfloop transitions, 5 changer transitions 0/133 dead transitions. [2024-11-28 04:00:17,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 133 transitions, 475 flow [2024-11-28 04:00:17,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:00:17,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:00:17,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 274 transitions. [2024-11-28 04:00:17,417 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7696629213483146 [2024-11-28 04:00:17,419 INFO L175 Difference]: Start difference. First operand has 82 places, 84 transitions, 183 flow. Second operand 4 states and 274 transitions. [2024-11-28 04:00:17,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 133 transitions, 475 flow [2024-11-28 04:00:17,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 133 transitions, 460 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 04:00:17,456 INFO L231 Difference]: Finished difference. Result has 82 places, 86 transitions, 208 flow [2024-11-28 04:00:17,459 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=208, PETRI_PLACES=82, PETRI_TRANSITIONS=86} [2024-11-28 04:00:17,463 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 0 predicate places. [2024-11-28 04:00:17,463 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 86 transitions, 208 flow [2024-11-28 04:00:17,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:17,463 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:17,463 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:17,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:00:17,464 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 04:00:17,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:17,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1961792194, now seen corresponding path program 1 times [2024-11-28 04:00:17,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:17,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267394707] [2024-11-28 04:00:17,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:17,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:17,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:17,604 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 04:00:17,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:17,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267394707] [2024-11-28 04:00:17,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267394707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:17,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:17,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:00:17,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917735154] [2024-11-28 04:00:17,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:17,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:00:17,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:17,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:00:17,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:00:17,630 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 89 [2024-11-28 04:00:17,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 86 transitions, 208 flow. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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 04:00:17,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:17,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 89 [2024-11-28 04:00:17,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:18,994 INFO L124 PetriNetUnfolderBase]: 6311/11503 cut-off events. [2024-11-28 04:00:18,995 INFO L125 PetriNetUnfolderBase]: For 2345/2363 co-relation queries the response was YES. [2024-11-28 04:00:19,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22474 conditions, 11503 events. 6311/11503 cut-off events. For 2345/2363 co-relation queries the response was YES. Maximal size of possible extension queue 741. Compared 97537 event pairs, 1511 based on Foata normal form. 18/9931 useless extension candidates. Maximal degree in co-relation 11989. Up to 5147 conditions per place. [2024-11-28 04:00:19,104 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 58 selfloop transitions, 4 changer transitions 0/108 dead transitions. [2024-11-28 04:00:19,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 108 transitions, 379 flow [2024-11-28 04:00:19,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:00:19,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:00:19,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 253 transitions. [2024-11-28 04:00:19,109 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7106741573033708 [2024-11-28 04:00:19,110 INFO L175 Difference]: Start difference. First operand has 82 places, 86 transitions, 208 flow. Second operand 4 states and 253 transitions. [2024-11-28 04:00:19,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 108 transitions, 379 flow [2024-11-28 04:00:19,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 108 transitions, 379 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:00:19,168 INFO L231 Difference]: Finished difference. Result has 84 places, 85 transitions, 214 flow [2024-11-28 04:00:19,168 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=214, PETRI_PLACES=84, PETRI_TRANSITIONS=85} [2024-11-28 04:00:19,169 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 2 predicate places. [2024-11-28 04:00:19,169 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 85 transitions, 214 flow [2024-11-28 04:00:19,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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 04:00:19,170 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:19,170 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:19,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:00:19,170 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 04:00:19,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:19,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1652510514, now seen corresponding path program 1 times [2024-11-28 04:00:19,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:19,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039680757] [2024-11-28 04:00:19,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:19,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:19,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:00:19,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:19,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039680757] [2024-11-28 04:00:19,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039680757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:19,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:19,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:00:19,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825547054] [2024-11-28 04:00:19,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:19,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:00:19,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:19,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:00:19,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:00:19,339 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-11-28 04:00:19,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 85 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:19,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:19,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-11-28 04:00:19,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:21,163 INFO L124 PetriNetUnfolderBase]: 10606/17820 cut-off events. [2024-11-28 04:00:21,163 INFO L125 PetriNetUnfolderBase]: For 6332/6941 co-relation queries the response was YES. [2024-11-28 04:00:21,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36166 conditions, 17820 events. 10606/17820 cut-off events. For 6332/6941 co-relation queries the response was YES. Maximal size of possible extension queue 1050. Compared 147793 event pairs, 3534 based on Foata normal form. 763/15551 useless extension candidates. Maximal degree in co-relation 20800. Up to 6926 conditions per place. [2024-11-28 04:00:21,291 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 90 selfloop transitions, 5 changer transitions 0/136 dead transitions. [2024-11-28 04:00:21,291 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 136 transitions, 560 flow [2024-11-28 04:00:21,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:00:21,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:00:21,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 272 transitions. [2024-11-28 04:00:21,295 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7640449438202247 [2024-11-28 04:00:21,296 INFO L175 Difference]: Start difference. First operand has 84 places, 85 transitions, 214 flow. Second operand 4 states and 272 transitions. [2024-11-28 04:00:21,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 136 transitions, 560 flow [2024-11-28 04:00:21,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 136 transitions, 540 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 04:00:21,380 INFO L231 Difference]: Finished difference. Result has 86 places, 87 transitions, 240 flow [2024-11-28 04:00:21,381 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=240, PETRI_PLACES=86, PETRI_TRANSITIONS=87} [2024-11-28 04:00:21,381 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 4 predicate places. [2024-11-28 04:00:21,381 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 87 transitions, 240 flow [2024-11-28 04:00:21,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:21,382 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:21,382 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:21,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:00:21,382 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 04:00:21,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:21,383 INFO L85 PathProgramCache]: Analyzing trace with hash 685984765, now seen corresponding path program 1 times [2024-11-28 04:00:21,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:21,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307327778] [2024-11-28 04:00:21,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:21,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:21,475 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 04:00:21,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:21,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307327778] [2024-11-28 04:00:21,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307327778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:21,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:21,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:00:21,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33683851] [2024-11-28 04:00:21,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:21,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:00:21,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:21,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:00:21,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:00:21,501 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 89 [2024-11-28 04:00:21,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 87 transitions, 240 flow. Second operand has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 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 04:00:21,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:21,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 89 [2024-11-28 04:00:21,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:22,909 INFO L124 PetriNetUnfolderBase]: 7663/14327 cut-off events. [2024-11-28 04:00:22,909 INFO L125 PetriNetUnfolderBase]: For 6263/6708 co-relation queries the response was YES. [2024-11-28 04:00:22,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29869 conditions, 14327 events. 7663/14327 cut-off events. For 6263/6708 co-relation queries the response was YES. Maximal size of possible extension queue 881. Compared 128416 event pairs, 1873 based on Foata normal form. 455/13012 useless extension candidates. Maximal degree in co-relation 17251. Up to 6429 conditions per place. [2024-11-28 04:00:23,040 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 63 selfloop transitions, 4 changer transitions 0/111 dead transitions. [2024-11-28 04:00:23,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 111 transitions, 441 flow [2024-11-28 04:00:23,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:00:23,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:00:23,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 249 transitions. [2024-11-28 04:00:23,042 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.699438202247191 [2024-11-28 04:00:23,042 INFO L175 Difference]: Start difference. First operand has 86 places, 87 transitions, 240 flow. Second operand 4 states and 249 transitions. [2024-11-28 04:00:23,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 111 transitions, 441 flow [2024-11-28 04:00:23,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 111 transitions, 441 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:00:23,114 INFO L231 Difference]: Finished difference. Result has 88 places, 86 transitions, 244 flow [2024-11-28 04:00:23,115 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=244, PETRI_PLACES=88, PETRI_TRANSITIONS=86} [2024-11-28 04:00:23,116 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 6 predicate places. [2024-11-28 04:00:23,116 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 86 transitions, 244 flow [2024-11-28 04:00:23,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 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 04:00:23,117 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:23,118 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:23,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:00:23,118 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 04:00:23,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:23,118 INFO L85 PathProgramCache]: Analyzing trace with hash -311780926, now seen corresponding path program 1 times [2024-11-28 04:00:23,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:23,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806936720] [2024-11-28 04:00:23,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:23,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:23,227 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 04:00:23,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:23,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806936720] [2024-11-28 04:00:23,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806936720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:23,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:23,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:00:23,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368175889] [2024-11-28 04:00:23,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:23,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:00:23,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:23,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:00:23,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:00:23,256 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 89 [2024-11-28 04:00:23,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 86 transitions, 244 flow. Second operand has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 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 04:00:23,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:23,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 89 [2024-11-28 04:00:23,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:24,148 INFO L124 PetriNetUnfolderBase]: 7682/14536 cut-off events. [2024-11-28 04:00:24,148 INFO L125 PetriNetUnfolderBase]: For 7388/7622 co-relation queries the response was YES. [2024-11-28 04:00:24,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30765 conditions, 14536 events. 7682/14536 cut-off events. For 7388/7622 co-relation queries the response was YES. Maximal size of possible extension queue 922. Compared 131896 event pairs, 1801 based on Foata normal form. 234/13015 useless extension candidates. Maximal degree in co-relation 17937. Up to 6391 conditions per place. [2024-11-28 04:00:24,243 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 61 selfloop transitions, 4 changer transitions 0/109 dead transitions. [2024-11-28 04:00:24,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 109 transitions, 447 flow [2024-11-28 04:00:24,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:00:24,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:00:24,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 252 transitions. [2024-11-28 04:00:24,245 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7078651685393258 [2024-11-28 04:00:24,245 INFO L175 Difference]: Start difference. First operand has 88 places, 86 transitions, 244 flow. Second operand 4 states and 252 transitions. [2024-11-28 04:00:24,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 109 transitions, 447 flow [2024-11-28 04:00:24,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 109 transitions, 433 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 04:00:24,363 INFO L231 Difference]: Finished difference. Result has 87 places, 85 transitions, 242 flow [2024-11-28 04:00:24,363 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=242, PETRI_PLACES=87, PETRI_TRANSITIONS=85} [2024-11-28 04:00:24,364 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 5 predicate places. [2024-11-28 04:00:24,364 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 85 transitions, 242 flow [2024-11-28 04:00:24,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 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 04:00:24,364 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:24,364 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:24,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:00:24,365 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 04:00:24,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:24,366 INFO L85 PathProgramCache]: Analyzing trace with hash -209308091, now seen corresponding path program 1 times [2024-11-28 04:00:24,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:24,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332755148] [2024-11-28 04:00:24,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:24,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:24,426 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 04:00:24,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:24,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332755148] [2024-11-28 04:00:24,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332755148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:24,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:24,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:00:24,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395108682] [2024-11-28 04:00:24,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:24,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:00:24,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:24,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:00:24,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:00:24,460 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-11-28 04:00:24,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 85 transitions, 242 flow. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:24,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:24,461 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-11-28 04:00:24,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:25,436 INFO L124 PetriNetUnfolderBase]: 8589/15779 cut-off events. [2024-11-28 04:00:25,436 INFO L125 PetriNetUnfolderBase]: For 8381/8874 co-relation queries the response was YES. [2024-11-28 04:00:25,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33466 conditions, 15779 events. 8589/15779 cut-off events. For 8381/8874 co-relation queries the response was YES. Maximal size of possible extension queue 959. Compared 141525 event pairs, 3715 based on Foata normal form. 472/14104 useless extension candidates. Maximal degree in co-relation 18847. Up to 7012 conditions per place. [2024-11-28 04:00:25,513 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 90 selfloop transitions, 4 changer transitions 0/135 dead transitions. [2024-11-28 04:00:25,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 135 transitions, 580 flow [2024-11-28 04:00:25,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:00:25,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:00:25,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 269 transitions. [2024-11-28 04:00:25,515 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7556179775280899 [2024-11-28 04:00:25,515 INFO L175 Difference]: Start difference. First operand has 87 places, 85 transitions, 242 flow. Second operand 4 states and 269 transitions. [2024-11-28 04:00:25,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 135 transitions, 580 flow [2024-11-28 04:00:25,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 135 transitions, 557 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 04:00:25,571 INFO L231 Difference]: Finished difference. Result has 86 places, 84 transitions, 233 flow [2024-11-28 04:00:25,572 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=233, PETRI_PLACES=86, PETRI_TRANSITIONS=84} [2024-11-28 04:00:25,572 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 4 predicate places. [2024-11-28 04:00:25,572 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 84 transitions, 233 flow [2024-11-28 04:00:25,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:25,573 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:25,573 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:25,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:00:25,573 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 04:00:25,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:25,574 INFO L85 PathProgramCache]: Analyzing trace with hash -209309116, now seen corresponding path program 1 times [2024-11-28 04:00:25,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:25,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583338543] [2024-11-28 04:00:25,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:25,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:25,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:25,721 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 04:00:25,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:25,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583338543] [2024-11-28 04:00:25,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583338543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:25,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:25,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:00:25,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185221694] [2024-11-28 04:00:25,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:25,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:00:25,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:25,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:00:25,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:00:25,755 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 89 [2024-11-28 04:00:25,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 84 transitions, 233 flow. Second operand has 5 states, 5 states have (on average 47.4) internal successors, (237), 5 states have internal predecessors, (237), 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 04:00:25,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:25,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 89 [2024-11-28 04:00:25,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:26,868 INFO L124 PetriNetUnfolderBase]: 10510/16965 cut-off events. [2024-11-28 04:00:26,868 INFO L125 PetriNetUnfolderBase]: For 5720/6344 co-relation queries the response was YES. [2024-11-28 04:00:26,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37465 conditions, 16965 events. 10510/16965 cut-off events. For 5720/6344 co-relation queries the response was YES. Maximal size of possible extension queue 989. Compared 134175 event pairs, 1805 based on Foata normal form. 314/15775 useless extension candidates. Maximal degree in co-relation 21635. Up to 7845 conditions per place. [2024-11-28 04:00:26,940 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 88 selfloop transitions, 6 changer transitions 0/133 dead transitions. [2024-11-28 04:00:26,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 133 transitions, 561 flow [2024-11-28 04:00:26,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:00:26,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 04:00:26,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 318 transitions. [2024-11-28 04:00:26,942 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7146067415730337 [2024-11-28 04:00:26,942 INFO L175 Difference]: Start difference. First operand has 86 places, 84 transitions, 233 flow. Second operand 5 states and 318 transitions. [2024-11-28 04:00:26,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 133 transitions, 561 flow [2024-11-28 04:00:26,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 133 transitions, 555 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:00:26,975 INFO L231 Difference]: Finished difference. Result has 87 places, 83 transitions, 237 flow [2024-11-28 04:00:26,975 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=237, PETRI_PLACES=87, PETRI_TRANSITIONS=83} [2024-11-28 04:00:26,976 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 5 predicate places. [2024-11-28 04:00:26,976 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 83 transitions, 237 flow [2024-11-28 04:00:26,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.4) internal successors, (237), 5 states have internal predecessors, (237), 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 04:00:26,976 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:26,976 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:26,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:00:26,977 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 04:00:26,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:26,977 INFO L85 PathProgramCache]: Analyzing trace with hash 297975129, now seen corresponding path program 1 times [2024-11-28 04:00:26,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:26,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628900179] [2024-11-28 04:00:26,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:26,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:26,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:27,044 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 04:00:27,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:27,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628900179] [2024-11-28 04:00:27,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628900179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:27,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:27,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:00:27,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655272840] [2024-11-28 04:00:27,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:27,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:00:27,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:27,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:00:27,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:00:27,073 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-11-28 04:00:27,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 83 transitions, 237 flow. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 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 04:00:27,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:27,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-11-28 04:00:27,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:28,563 INFO L124 PetriNetUnfolderBase]: 12659/21669 cut-off events. [2024-11-28 04:00:28,563 INFO L125 PetriNetUnfolderBase]: For 12861/13943 co-relation queries the response was YES. [2024-11-28 04:00:28,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46647 conditions, 21669 events. 12659/21669 cut-off events. For 12861/13943 co-relation queries the response was YES. Maximal size of possible extension queue 1239. Compared 189168 event pairs, 4628 based on Foata normal form. 1237/19913 useless extension candidates. Maximal degree in co-relation 26777. Up to 8789 conditions per place. [2024-11-28 04:00:28,647 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 94 selfloop transitions, 5 changer transitions 0/136 dead transitions. [2024-11-28 04:00:28,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 136 transitions, 629 flow [2024-11-28 04:00:28,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:00:28,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:00:28,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 270 transitions. [2024-11-28 04:00:28,649 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7584269662921348 [2024-11-28 04:00:28,649 INFO L175 Difference]: Start difference. First operand has 87 places, 83 transitions, 237 flow. Second operand 4 states and 270 transitions. [2024-11-28 04:00:28,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 136 transitions, 629 flow [2024-11-28 04:00:28,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 136 transitions, 608 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 04:00:28,710 INFO L231 Difference]: Finished difference. Result has 89 places, 85 transitions, 262 flow [2024-11-28 04:00:28,711 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=262, PETRI_PLACES=89, PETRI_TRANSITIONS=85} [2024-11-28 04:00:28,712 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 7 predicate places. [2024-11-28 04:00:28,712 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 85 transitions, 262 flow [2024-11-28 04:00:28,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 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 04:00:28,713 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:28,713 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:28,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:00:28,713 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 04:00:28,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:28,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1075305194, now seen corresponding path program 1 times [2024-11-28 04:00:28,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:28,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162666934] [2024-11-28 04:00:28,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:28,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:28,759 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 04:00:28,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:28,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162666934] [2024-11-28 04:00:28,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162666934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:28,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:28,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:00:28,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183438904] [2024-11-28 04:00:28,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:28,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:00:28,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:28,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:00:28,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:00:28,781 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 89 [2024-11-28 04:00:28,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 85 transitions, 262 flow. Second operand has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 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 04:00:28,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:28,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 89 [2024-11-28 04:00:28,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:29,735 INFO L124 PetriNetUnfolderBase]: 9275/17800 cut-off events. [2024-11-28 04:00:29,735 INFO L125 PetriNetUnfolderBase]: For 11232/11863 co-relation queries the response was YES. [2024-11-28 04:00:29,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38839 conditions, 17800 events. 9275/17800 cut-off events. For 11232/11863 co-relation queries the response was YES. Maximal size of possible extension queue 1059. Compared 168142 event pairs, 2224 based on Foata normal form. 734/16730 useless extension candidates. Maximal degree in co-relation 23961. Up to 7859 conditions per place. [2024-11-28 04:00:29,815 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 66 selfloop transitions, 4 changer transitions 0/110 dead transitions. [2024-11-28 04:00:29,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 110 transitions, 489 flow [2024-11-28 04:00:29,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:00:29,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:00:29,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 248 transitions. [2024-11-28 04:00:29,817 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6966292134831461 [2024-11-28 04:00:29,817 INFO L175 Difference]: Start difference. First operand has 89 places, 85 transitions, 262 flow. Second operand 4 states and 248 transitions. [2024-11-28 04:00:29,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 110 transitions, 489 flow [2024-11-28 04:00:29,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 110 transitions, 489 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:00:29,916 INFO L231 Difference]: Finished difference. Result has 91 places, 84 transitions, 266 flow [2024-11-28 04:00:29,916 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=266, PETRI_PLACES=91, PETRI_TRANSITIONS=84} [2024-11-28 04:00:29,916 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2024-11-28 04:00:29,917 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 84 transitions, 266 flow [2024-11-28 04:00:29,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 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 04:00:29,917 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:29,917 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:29,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:00:29,917 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 04:00:29,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:29,918 INFO L85 PathProgramCache]: Analyzing trace with hash 2101352672, now seen corresponding path program 1 times [2024-11-28 04:00:29,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:29,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583249391] [2024-11-28 04:00:29,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:29,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:30,008 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 04:00:30,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:30,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583249391] [2024-11-28 04:00:30,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583249391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:30,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:30,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:00:30,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434934020] [2024-11-28 04:00:30,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:30,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:00:30,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:30,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:00:30,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:00:30,057 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2024-11-28 04:00:30,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 84 transitions, 266 flow. Second operand has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 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 04:00:30,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:30,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2024-11-28 04:00:30,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:31,433 INFO L124 PetriNetUnfolderBase]: 12676/20604 cut-off events. [2024-11-28 04:00:31,433 INFO L125 PetriNetUnfolderBase]: For 15746/16711 co-relation queries the response was YES. [2024-11-28 04:00:31,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49418 conditions, 20604 events. 12676/20604 cut-off events. For 15746/16711 co-relation queries the response was YES. Maximal size of possible extension queue 1168. Compared 168898 event pairs, 2296 based on Foata normal form. 1221/20431 useless extension candidates. Maximal degree in co-relation 30295. Up to 5311 conditions per place. [2024-11-28 04:00:31,541 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 118 selfloop transitions, 9 changer transitions 0/165 dead transitions. [2024-11-28 04:00:31,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 165 transitions, 817 flow [2024-11-28 04:00:31,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:00:31,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:00:31,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 368 transitions. [2024-11-28 04:00:31,543 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6891385767790262 [2024-11-28 04:00:31,543 INFO L175 Difference]: Start difference. First operand has 91 places, 84 transitions, 266 flow. Second operand 6 states and 368 transitions. [2024-11-28 04:00:31,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 165 transitions, 817 flow [2024-11-28 04:00:31,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 165 transitions, 791 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 04:00:31,617 INFO L231 Difference]: Finished difference. Result has 93 places, 84 transitions, 283 flow [2024-11-28 04:00:31,617 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=283, PETRI_PLACES=93, PETRI_TRANSITIONS=84} [2024-11-28 04:00:31,618 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 11 predicate places. [2024-11-28 04:00:31,618 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 84 transitions, 283 flow [2024-11-28 04:00:31,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 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 04:00:31,618 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:31,618 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:31,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:00:31,619 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 04:00:31,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:31,619 INFO L85 PathProgramCache]: Analyzing trace with hash 647295124, now seen corresponding path program 1 times [2024-11-28 04:00:31,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:31,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021151936] [2024-11-28 04:00:31,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:31,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:31,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:31,710 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 04:00:31,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:31,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021151936] [2024-11-28 04:00:31,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021151936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:31,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:31,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:00:31,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309237313] [2024-11-28 04:00:31,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:31,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:00:31,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:31,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:00:31,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:00:31,738 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 89 [2024-11-28 04:00:31,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 84 transitions, 283 flow. Second operand has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 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 04:00:31,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:31,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 89 [2024-11-28 04:00:31,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:32,979 INFO L124 PetriNetUnfolderBase]: 9329/17938 cut-off events. [2024-11-28 04:00:32,980 INFO L125 PetriNetUnfolderBase]: For 17304/18410 co-relation queries the response was YES. [2024-11-28 04:00:33,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41641 conditions, 17938 events. 9329/17938 cut-off events. For 17304/18410 co-relation queries the response was YES. Maximal size of possible extension queue 1062. Compared 170328 event pairs, 2522 based on Foata normal form. 959/17172 useless extension candidates. Maximal degree in co-relation 24671. Up to 7058 conditions per place. [2024-11-28 04:00:33,091 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 66 selfloop transitions, 4 changer transitions 0/109 dead transitions. [2024-11-28 04:00:33,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 109 transitions, 528 flow [2024-11-28 04:00:33,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:00:33,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:00:33,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2024-11-28 04:00:33,093 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7050561797752809 [2024-11-28 04:00:33,093 INFO L175 Difference]: Start difference. First operand has 93 places, 84 transitions, 283 flow. Second operand 4 states and 251 transitions. [2024-11-28 04:00:33,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 109 transitions, 528 flow [2024-11-28 04:00:33,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 109 transitions, 506 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 04:00:33,192 INFO L231 Difference]: Finished difference. Result has 91 places, 83 transitions, 276 flow [2024-11-28 04:00:33,193 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=276, PETRI_PLACES=91, PETRI_TRANSITIONS=83} [2024-11-28 04:00:33,193 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2024-11-28 04:00:33,193 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 83 transitions, 276 flow [2024-11-28 04:00:33,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 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 04:00:33,194 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:33,194 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:33,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:00:33,194 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 04:00:33,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:33,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1025278053, now seen corresponding path program 1 times [2024-11-28 04:00:33,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:33,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069071608] [2024-11-28 04:00:33,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:33,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:33,244 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 04:00:33,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:33,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069071608] [2024-11-28 04:00:33,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069071608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:33,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:33,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:00:33,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274552452] [2024-11-28 04:00:33,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:33,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:00:33,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:33,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:00:33,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:00:33,267 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-11-28 04:00:33,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 83 transitions, 276 flow. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:33,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:33,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-11-28 04:00:33,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:34,911 INFO L124 PetriNetUnfolderBase]: 10491/19538 cut-off events. [2024-11-28 04:00:34,911 INFO L125 PetriNetUnfolderBase]: For 17090/18481 co-relation queries the response was YES. [2024-11-28 04:00:34,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45405 conditions, 19538 events. 10491/19538 cut-off events. For 17090/18481 co-relation queries the response was YES. Maximal size of possible extension queue 1092. Compared 181634 event pairs, 4640 based on Foata normal form. 1322/18808 useless extension candidates. Maximal degree in co-relation 27526. Up to 8518 conditions per place. [2024-11-28 04:00:35,045 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 97 selfloop transitions, 4 changer transitions 0/137 dead transitions. [2024-11-28 04:00:35,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 137 transitions, 688 flow [2024-11-28 04:00:35,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:00:35,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:00:35,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 267 transitions. [2024-11-28 04:00:35,047 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-11-28 04:00:35,047 INFO L175 Difference]: Start difference. First operand has 91 places, 83 transitions, 276 flow. Second operand 4 states and 267 transitions. [2024-11-28 04:00:35,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 137 transitions, 688 flow [2024-11-28 04:00:35,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 137 transitions, 665 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 04:00:35,148 INFO L231 Difference]: Finished difference. Result has 90 places, 82 transitions, 267 flow [2024-11-28 04:00:35,148 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=267, PETRI_PLACES=90, PETRI_TRANSITIONS=82} [2024-11-28 04:00:35,149 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 8 predicate places. [2024-11-28 04:00:35,149 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 82 transitions, 267 flow [2024-11-28 04:00:35,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:35,149 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:35,150 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:35,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:00:35,150 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 04:00:35,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:35,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1025277028, now seen corresponding path program 1 times [2024-11-28 04:00:35,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:35,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657941801] [2024-11-28 04:00:35,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:35,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:35,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:35,242 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 04:00:35,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:35,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657941801] [2024-11-28 04:00:35,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657941801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:35,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:35,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:00:35,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577123576] [2024-11-28 04:00:35,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:35,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:00:35,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:35,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:00:35,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:00:35,290 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 89 [2024-11-28 04:00:35,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 82 transitions, 267 flow. Second operand has 5 states, 5 states have (on average 47.8) internal successors, (239), 5 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:35,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:35,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 89 [2024-11-28 04:00:35,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:36,694 INFO L124 PetriNetUnfolderBase]: 12797/20792 cut-off events. [2024-11-28 04:00:36,694 INFO L125 PetriNetUnfolderBase]: For 15609/17548 co-relation queries the response was YES. [2024-11-28 04:00:36,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50905 conditions, 20792 events. 12797/20792 cut-off events. For 15609/17548 co-relation queries the response was YES. Maximal size of possible extension queue 1135. Compared 169158 event pairs, 2189 based on Foata normal form. 1372/20954 useless extension candidates. Maximal degree in co-relation 31234. Up to 9635 conditions per place. [2024-11-28 04:00:36,824 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 95 selfloop transitions, 6 changer transitions 0/135 dead transitions. [2024-11-28 04:00:36,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 135 transitions, 669 flow [2024-11-28 04:00:36,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:00:36,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 04:00:36,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 316 transitions. [2024-11-28 04:00:36,837 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7101123595505618 [2024-11-28 04:00:36,837 INFO L175 Difference]: Start difference. First operand has 90 places, 82 transitions, 267 flow. Second operand 5 states and 316 transitions. [2024-11-28 04:00:36,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 135 transitions, 669 flow [2024-11-28 04:00:36,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 135 transitions, 663 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:00:36,966 INFO L231 Difference]: Finished difference. Result has 91 places, 81 transitions, 271 flow [2024-11-28 04:00:36,966 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=271, PETRI_PLACES=91, PETRI_TRANSITIONS=81} [2024-11-28 04:00:36,967 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2024-11-28 04:00:36,967 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 81 transitions, 271 flow [2024-11-28 04:00:36,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.8) internal successors, (239), 5 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:36,967 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:36,967 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:36,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:00:36,968 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 04:00:36,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:36,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1664741162, now seen corresponding path program 1 times [2024-11-28 04:00:36,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:36,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154595945] [2024-11-28 04:00:36,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:36,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:36,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:37,047 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 04:00:37,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:37,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154595945] [2024-11-28 04:00:37,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154595945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:37,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:37,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:00:37,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165942017] [2024-11-28 04:00:37,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:37,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:00:37,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:37,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:00:37,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:00:37,085 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2024-11-28 04:00:37,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 81 transitions, 271 flow. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 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 04:00:37,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:37,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2024-11-28 04:00:37,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:38,366 INFO L124 PetriNetUnfolderBase]: 12652/20642 cut-off events. [2024-11-28 04:00:38,366 INFO L125 PetriNetUnfolderBase]: For 17164/18020 co-relation queries the response was YES. [2024-11-28 04:00:38,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50828 conditions, 20642 events. 12652/20642 cut-off events. For 17164/18020 co-relation queries the response was YES. Maximal size of possible extension queue 1129. Compared 168882 event pairs, 4671 based on Foata normal form. 910/20216 useless extension candidates. Maximal degree in co-relation 30927. Up to 8859 conditions per place. [2024-11-28 04:00:38,482 INFO L140 encePairwiseOnDemand]: 82/89 looper letters, 149 selfloop transitions, 8 changer transitions 0/190 dead transitions. [2024-11-28 04:00:38,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 190 transitions, 983 flow [2024-11-28 04:00:38,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:00:38,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:00:38,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 396 transitions. [2024-11-28 04:00:38,484 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7415730337078652 [2024-11-28 04:00:38,484 INFO L175 Difference]: Start difference. First operand has 91 places, 81 transitions, 271 flow. Second operand 6 states and 396 transitions. [2024-11-28 04:00:38,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 190 transitions, 983 flow [2024-11-28 04:00:38,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 190 transitions, 945 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-28 04:00:38,694 INFO L231 Difference]: Finished difference. Result has 93 places, 82 transitions, 286 flow [2024-11-28 04:00:38,694 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=286, PETRI_PLACES=93, PETRI_TRANSITIONS=82} [2024-11-28 04:00:38,694 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 11 predicate places. [2024-11-28 04:00:38,695 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 82 transitions, 286 flow [2024-11-28 04:00:38,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 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 04:00:38,695 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:38,695 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:38,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:00:38,695 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 04:00:38,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:38,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1408718691, now seen corresponding path program 1 times [2024-11-28 04:00:38,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:38,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419204851] [2024-11-28 04:00:38,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:38,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:38,741 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 04:00:38,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:38,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419204851] [2024-11-28 04:00:38,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419204851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:38,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:38,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:00:38,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640785119] [2024-11-28 04:00:38,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:38,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:00:38,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:38,742 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:00:38,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:00:38,763 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 89 [2024-11-28 04:00:38,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 82 transitions, 286 flow. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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 04:00:38,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:38,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 89 [2024-11-28 04:00:38,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:39,821 INFO L124 PetriNetUnfolderBase]: 9321/17281 cut-off events. [2024-11-28 04:00:39,822 INFO L125 PetriNetUnfolderBase]: For 20529/21488 co-relation queries the response was YES. [2024-11-28 04:00:39,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40962 conditions, 17281 events. 9321/17281 cut-off events. For 20529/21488 co-relation queries the response was YES. Maximal size of possible extension queue 1000. Compared 157631 event pairs, 2522 based on Foata normal form. 1213/16891 useless extension candidates. Maximal degree in co-relation 28146. Up to 7312 conditions per place. [2024-11-28 04:00:39,908 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 69 selfloop transitions, 4 changer transitions 0/108 dead transitions. [2024-11-28 04:00:39,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 108 transitions, 543 flow [2024-11-28 04:00:39,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:00:39,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:00:39,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 247 transitions. [2024-11-28 04:00:39,910 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6938202247191011 [2024-11-28 04:00:39,910 INFO L175 Difference]: Start difference. First operand has 93 places, 82 transitions, 286 flow. Second operand 4 states and 247 transitions. [2024-11-28 04:00:39,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 108 transitions, 543 flow [2024-11-28 04:00:39,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 108 transitions, 515 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-28 04:00:39,985 INFO L231 Difference]: Finished difference. Result has 91 places, 81 transitions, 274 flow [2024-11-28 04:00:39,985 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=274, PETRI_PLACES=91, PETRI_TRANSITIONS=81} [2024-11-28 04:00:39,986 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2024-11-28 04:00:39,986 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 81 transitions, 274 flow [2024-11-28 04:00:39,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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 04:00:39,986 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:39,986 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:39,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:00:39,987 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 04:00:39,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:39,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1718817497, now seen corresponding path program 1 times [2024-11-28 04:00:39,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:39,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979166972] [2024-11-28 04:00:39,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:39,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:39,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:40,071 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 04:00:40,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:40,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979166972] [2024-11-28 04:00:40,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979166972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:40,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:40,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:00:40,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641801225] [2024-11-28 04:00:40,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:40,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:00:40,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:40,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:00:40,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:00:40,105 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2024-11-28 04:00:40,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 81 transitions, 274 flow. Second operand has 6 states, 6 states have (on average 44.5) internal successors, (267), 6 states have internal predecessors, (267), 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 04:00:40,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:40,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2024-11-28 04:00:40,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:41,343 INFO L124 PetriNetUnfolderBase]: 12797/20226 cut-off events. [2024-11-28 04:00:41,343 INFO L125 PetriNetUnfolderBase]: For 22075/23456 co-relation queries the response was YES. [2024-11-28 04:00:41,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50772 conditions, 20226 events. 12797/20226 cut-off events. For 22075/23456 co-relation queries the response was YES. Maximal size of possible extension queue 1138. Compared 158846 event pairs, 2180 based on Foata normal form. 1931/20947 useless extension candidates. Maximal degree in co-relation 34723. Up to 5475 conditions per place. [2024-11-28 04:00:41,458 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 123 selfloop transitions, 9 changer transitions 0/165 dead transitions. [2024-11-28 04:00:41,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 165 transitions, 874 flow [2024-11-28 04:00:41,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:00:41,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:00:41,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 365 transitions. [2024-11-28 04:00:41,460 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6835205992509363 [2024-11-28 04:00:41,460 INFO L175 Difference]: Start difference. First operand has 91 places, 81 transitions, 274 flow. Second operand 6 states and 365 transitions. [2024-11-28 04:00:41,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 165 transitions, 874 flow [2024-11-28 04:00:41,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 165 transitions, 848 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 04:00:41,534 INFO L231 Difference]: Finished difference. Result has 93 places, 81 transitions, 291 flow [2024-11-28 04:00:41,535 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=291, PETRI_PLACES=93, PETRI_TRANSITIONS=81} [2024-11-28 04:00:41,535 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 11 predicate places. [2024-11-28 04:00:41,535 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 81 transitions, 291 flow [2024-11-28 04:00:41,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.5) internal successors, (267), 6 states have internal predecessors, (267), 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 04:00:41,535 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:41,535 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:41,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 04:00:41,536 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 04:00:41,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:41,536 INFO L85 PathProgramCache]: Analyzing trace with hash -720606762, now seen corresponding path program 1 times [2024-11-28 04:00:41,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:41,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307981761] [2024-11-28 04:00:41,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:41,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:41,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:41,610 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 04:00:41,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:41,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307981761] [2024-11-28 04:00:41,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307981761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:41,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:41,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:00:41,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613635731] [2024-11-28 04:00:41,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:41,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:00:41,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:41,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:00:41,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:00:41,647 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 89 [2024-11-28 04:00:41,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 81 transitions, 291 flow. Second operand has 5 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 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 04:00:41,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:41,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 89 [2024-11-28 04:00:41,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:42,790 INFO L124 PetriNetUnfolderBase]: 12930/20270 cut-off events. [2024-11-28 04:00:42,791 INFO L125 PetriNetUnfolderBase]: For 29666/31972 co-relation queries the response was YES. [2024-11-28 04:00:42,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53335 conditions, 20270 events. 12930/20270 cut-off events. For 29666/31972 co-relation queries the response was YES. Maximal size of possible extension queue 1096. Compared 156721 event pairs, 2539 based on Foata normal form. 2053/21350 useless extension candidates. Maximal degree in co-relation 36672. Up to 9002 conditions per place. [2024-11-28 04:00:42,893 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 99 selfloop transitions, 6 changer transitions 0/136 dead transitions. [2024-11-28 04:00:42,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 136 transitions, 743 flow [2024-11-28 04:00:42,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:00:42,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 04:00:42,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 314 transitions. [2024-11-28 04:00:42,895 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7056179775280899 [2024-11-28 04:00:42,895 INFO L175 Difference]: Start difference. First operand has 93 places, 81 transitions, 291 flow. Second operand 5 states and 314 transitions. [2024-11-28 04:00:42,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 136 transitions, 743 flow [2024-11-28 04:00:42,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 136 transitions, 712 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 04:00:42,980 INFO L231 Difference]: Finished difference. Result has 92 places, 80 transitions, 288 flow [2024-11-28 04:00:42,980 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=288, PETRI_PLACES=92, PETRI_TRANSITIONS=80} [2024-11-28 04:00:42,981 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 10 predicate places. [2024-11-28 04:00:42,981 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 80 transitions, 288 flow [2024-11-28 04:00:42,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 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 04:00:42,981 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:42,981 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:42,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 04:00:42,981 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 04:00:42,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:42,981 INFO L85 PathProgramCache]: Analyzing trace with hash -720605737, now seen corresponding path program 1 times [2024-11-28 04:00:42,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:42,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184460421] [2024-11-28 04:00:42,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:42,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:43,028 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 04:00:43,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:43,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184460421] [2024-11-28 04:00:43,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184460421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:43,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:43,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:00:43,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517843710] [2024-11-28 04:00:43,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:43,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:00:43,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:43,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:00:43,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:00:43,044 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-11-28 04:00:43,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 80 transitions, 288 flow. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 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 04:00:43,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:43,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-11-28 04:00:43,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:44,055 INFO L124 PetriNetUnfolderBase]: 10522/18008 cut-off events. [2024-11-28 04:00:44,055 INFO L125 PetriNetUnfolderBase]: For 22769/24514 co-relation queries the response was YES. [2024-11-28 04:00:44,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45473 conditions, 18008 events. 10522/18008 cut-off events. For 22769/24514 co-relation queries the response was YES. Maximal size of possible extension queue 1012. Compared 153033 event pairs, 4871 based on Foata normal form. 1861/18896 useless extension candidates. Maximal degree in co-relation 31247. Up to 8895 conditions per place. [2024-11-28 04:00:44,150 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 101 selfloop transitions, 4 changer transitions 0/136 dead transitions. [2024-11-28 04:00:44,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 136 transitions, 720 flow [2024-11-28 04:00:44,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:00:44,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:00:44,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 265 transitions. [2024-11-28 04:00:44,152 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7443820224719101 [2024-11-28 04:00:44,152 INFO L175 Difference]: Start difference. First operand has 92 places, 80 transitions, 288 flow. Second operand 4 states and 265 transitions. [2024-11-28 04:00:44,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 136 transitions, 720 flow [2024-11-28 04:00:44,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 136 transitions, 708 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 04:00:44,227 INFO L231 Difference]: Finished difference. Result has 91 places, 79 transitions, 278 flow [2024-11-28 04:00:44,227 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=278, PETRI_PLACES=91, PETRI_TRANSITIONS=79} [2024-11-28 04:00:44,228 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2024-11-28 04:00:44,228 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 79 transitions, 278 flow [2024-11-28 04:00:44,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 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 04:00:44,228 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:44,228 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:44,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 04:00:44,228 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 04:00:44,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:44,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1603914646, now seen corresponding path program 1 times [2024-11-28 04:00:44,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:44,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807593343] [2024-11-28 04:00:44,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:44,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:44,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:44,276 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 04:00:44,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:44,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807593343] [2024-11-28 04:00:44,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807593343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:44,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:44,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:00:44,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034859128] [2024-11-28 04:00:44,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:44,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:00:44,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:44,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:00:44,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:00:44,298 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-11-28 04:00:44,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 79 transitions, 278 flow. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 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 04:00:44,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:44,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-11-28 04:00:44,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:45,415 INFO L124 PetriNetUnfolderBase]: 12701/20098 cut-off events. [2024-11-28 04:00:45,415 INFO L125 PetriNetUnfolderBase]: For 24570/26071 co-relation queries the response was YES. [2024-11-28 04:00:45,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51490 conditions, 20098 events. 12701/20098 cut-off events. For 24570/26071 co-relation queries the response was YES. Maximal size of possible extension queue 1112. Compared 158119 event pairs, 4595 based on Foata normal form. 1776/20867 useless extension candidates. Maximal degree in co-relation 35113. Up to 8717 conditions per place. [2024-11-28 04:00:45,513 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 99 selfloop transitions, 5 changer transitions 0/135 dead transitions. [2024-11-28 04:00:45,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 135 transitions, 707 flow [2024-11-28 04:00:45,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:00:45,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:00:45,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 265 transitions. [2024-11-28 04:00:45,514 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7443820224719101 [2024-11-28 04:00:45,514 INFO L175 Difference]: Start difference. First operand has 91 places, 79 transitions, 278 flow. Second operand 4 states and 265 transitions. [2024-11-28 04:00:45,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 135 transitions, 707 flow [2024-11-28 04:00:45,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 135 transitions, 688 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 04:00:45,554 INFO L231 Difference]: Finished difference. Result has 91 places, 79 transitions, 282 flow [2024-11-28 04:00:45,554 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=282, PETRI_PLACES=91, PETRI_TRANSITIONS=79} [2024-11-28 04:00:45,554 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2024-11-28 04:00:45,554 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 79 transitions, 282 flow [2024-11-28 04:00:45,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 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 04:00:45,555 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:45,555 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:45,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 04:00:45,555 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 04:00:45,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:45,555 INFO L85 PathProgramCache]: Analyzing trace with hash -863972416, now seen corresponding path program 1 times [2024-11-28 04:00:45,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:45,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288978895] [2024-11-28 04:00:45,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:45,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:45,649 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 04:00:45,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:45,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288978895] [2024-11-28 04:00:45,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288978895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:45,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:45,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:00:45,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674673913] [2024-11-28 04:00:45,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:45,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:00:45,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:45,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:00:45,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:00:45,687 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2024-11-28 04:00:45,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 79 transitions, 282 flow. Second operand has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 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 04:00:45,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:45,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2024-11-28 04:00:45,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:46,947 INFO L124 PetriNetUnfolderBase]: 13746/21383 cut-off events. [2024-11-28 04:00:46,947 INFO L125 PetriNetUnfolderBase]: For 30736/32891 co-relation queries the response was YES. [2024-11-28 04:00:47,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56967 conditions, 21383 events. 13746/21383 cut-off events. For 30736/32891 co-relation queries the response was YES. Maximal size of possible extension queue 1169. Compared 165224 event pairs, 2778 based on Foata normal form. 2709/23037 useless extension candidates. Maximal degree in co-relation 44476. Up to 5557 conditions per place. [2024-11-28 04:00:47,067 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 128 selfloop transitions, 9 changer transitions 0/166 dead transitions. [2024-11-28 04:00:47,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 166 transitions, 934 flow [2024-11-28 04:00:47,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:00:47,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:00:47,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 362 transitions. [2024-11-28 04:00:47,069 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6779026217228464 [2024-11-28 04:00:47,069 INFO L175 Difference]: Start difference. First operand has 91 places, 79 transitions, 282 flow. Second operand 6 states and 362 transitions. [2024-11-28 04:00:47,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 166 transitions, 934 flow [2024-11-28 04:00:47,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 166 transitions, 918 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:00:47,162 INFO L231 Difference]: Finished difference. Result has 95 places, 79 transitions, 303 flow [2024-11-28 04:00:47,162 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=303, PETRI_PLACES=95, PETRI_TRANSITIONS=79} [2024-11-28 04:00:47,162 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 13 predicate places. [2024-11-28 04:00:47,162 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 79 transitions, 303 flow [2024-11-28 04:00:47,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 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 04:00:47,163 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:47,163 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:47,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 04:00:47,163 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 04:00:47,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:47,163 INFO L85 PathProgramCache]: Analyzing trace with hash -66023300, now seen corresponding path program 1 times [2024-11-28 04:00:47,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:47,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948681934] [2024-11-28 04:00:47,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:47,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:47,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:47,222 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 04:00:47,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:47,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948681934] [2024-11-28 04:00:47,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948681934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:47,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:47,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:00:47,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692967202] [2024-11-28 04:00:47,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:47,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:00:47,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:47,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:00:47,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:00:47,261 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2024-11-28 04:00:47,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 79 transitions, 303 flow. Second operand has 5 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 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 04:00:47,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:47,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2024-11-28 04:00:47,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:48,570 INFO L124 PetriNetUnfolderBase]: 13746/20724 cut-off events. [2024-11-28 04:00:48,570 INFO L125 PetriNetUnfolderBase]: For 32307/34421 co-relation queries the response was YES. [2024-11-28 04:00:48,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58546 conditions, 20724 events. 13746/20724 cut-off events. For 32307/34421 co-relation queries the response was YES. Maximal size of possible extension queue 1145. Compared 153317 event pairs, 5330 based on Foata normal form. 2391/22568 useless extension candidates. Maximal degree in co-relation 45907. Up to 9937 conditions per place. [2024-11-28 04:00:48,643 INFO L140 encePairwiseOnDemand]: 82/89 looper letters, 0 selfloop transitions, 0 changer transitions 196/196 dead transitions. [2024-11-28 04:00:48,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 196 transitions, 1131 flow [2024-11-28 04:00:48,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:00:48,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:00:48,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 388 transitions. [2024-11-28 04:00:48,646 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7265917602996255 [2024-11-28 04:00:48,646 INFO L175 Difference]: Start difference. First operand has 95 places, 79 transitions, 303 flow. Second operand 6 states and 388 transitions. [2024-11-28 04:00:48,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 196 transitions, 1131 flow [2024-11-28 04:00:48,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 196 transitions, 1113 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-28 04:00:48,893 INFO L231 Difference]: Finished difference. Result has 94 places, 0 transitions, 0 flow [2024-11-28 04:00:48,893 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=94, PETRI_TRANSITIONS=0} [2024-11-28 04:00:48,893 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 12 predicate places. [2024-11-28 04:00:48,893 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 0 transitions, 0 flow [2024-11-28 04:00:48,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 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 04:00:48,896 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2024-11-28 04:00:48,896 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2024-11-28 04:00:48,896 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2024-11-28 04:00:48,897 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2024-11-28 04:00:48,897 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2024-11-28 04:00:48,897 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2024-11-28 04:00:48,897 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2024-11-28 04:00:48,897 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2024-11-28 04:00:48,897 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2024-11-28 04:00:48,897 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2024-11-28 04:00:48,897 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2024-11-28 04:00:48,897 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2024-11-28 04:00:48,898 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2024-11-28 04:00:48,898 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2024-11-28 04:00:48,898 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2024-11-28 04:00:48,898 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2024-11-28 04:00:48,898 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2024-11-28 04:00:48,898 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2024-11-28 04:00:48,898 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2024-11-28 04:00:48,898 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2024-11-28 04:00:48,898 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2024-11-28 04:00:48,898 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2024-11-28 04:00:48,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2024-11-28 04:00:48,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2024-11-28 04:00:48,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2024-11-28 04:00:48,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2024-11-28 04:00:48,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2024-11-28 04:00:48,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2024-11-28 04:00:48,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2024-11-28 04:00:48,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2024-11-28 04:00:48,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2024-11-28 04:00:48,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2024-11-28 04:00:48,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2024-11-28 04:00:48,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2024-11-28 04:00:48,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2024-11-28 04:00:48,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2024-11-28 04:00:48,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2024-11-28 04:00:48,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2024-11-28 04:00:48,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2024-11-28 04:00:48,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 04:00:48,901 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:48,906 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 04:00:48,906 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:00:48,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:00:48 BasicIcfg [2024-11-28 04:00:48,912 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:00:48,912 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:00:48,912 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:00:48,912 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:00:48,916 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:00:14" (3/4) ... [2024-11-28 04:00:48,918 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:00:48,921 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-28 04:00:48,921 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-28 04:00:48,921 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-28 04:00:48,927 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 70 nodes and edges [2024-11-28 04:00:48,927 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-28 04:00:48,927 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 04:00:48,927 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-28 04:00:48,998 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea06197e-d4db-4201-9deb-d0ad108d95ed/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:00:48,998 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea06197e-d4db-4201-9deb-d0ad108d95ed/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:00:48,998 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:00:48,999 INFO L158 Benchmark]: Toolchain (without parser) took 35843.47ms. Allocated memory was 117.4MB in the beginning and 2.5GB in the end (delta: 2.4GB). Free memory was 93.3MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2024-11-28 04:00:48,999 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 74.1MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:00:49,000 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.65ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 81.7MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:00:49,000 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.09ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 79.8MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:00:49,000 INFO L158 Benchmark]: Boogie Preprocessor took 57.42ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 77.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:00:49,000 INFO L158 Benchmark]: RCFGBuilder took 970.91ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 86.0MB in the end (delta: -8.2MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2024-11-28 04:00:49,001 INFO L158 Benchmark]: TraceAbstraction took 34337.22ms. Allocated memory was 117.4MB in the beginning and 2.5GB in the end (delta: 2.4GB). Free memory was 85.4MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2024-11-28 04:00:49,001 INFO L158 Benchmark]: Witness Printer took 86.05ms. Allocated memory is still 2.5GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:00:49,003 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 74.1MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.65ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 81.7MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.09ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 79.8MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.42ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 77.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 970.91ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 86.0MB in the end (delta: -8.2MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. * TraceAbstraction took 34337.22ms. Allocated memory was 117.4MB in the beginning and 2.5GB in the end (delta: 2.4GB). Free memory was 85.4MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. * Witness Printer took 86.05ms. Allocated memory is still 2.5GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 147 locations, 39 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 34.2s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 32.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2056 SdHoareTripleChecker+Valid, 4.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1755 mSDsluCounter, 224 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 99 mSDsCounter, 104 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4140 IncrementalHoareTripleChecker+Invalid, 4244 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 104 mSolverCounterUnsat, 125 mSDtfsCounter, 4140 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=303occurred in iteration=20, InterpolantAutomatonStates: 97, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 243 NumberOfCodeBlocks, 243 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 731 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 04:00:49,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea06197e-d4db-4201-9deb-d0ad108d95ed/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE