./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label48+token_ring.10.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67068dc3-bf8a-4398-9238-a37e837c2d9d/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67068dc3-bf8a-4398-9238-a37e837c2d9d/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_67068dc3-bf8a-4398-9238-a37e837c2d9d/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67068dc3-bf8a-4398-9238-a37e837c2d9d/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label48+token_ring.10.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67068dc3-bf8a-4398-9238-a37e837c2d9d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67068dc3-bf8a-4398-9238-a37e837c2d9d/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7e5f5a1db53b7a411af936e12a734750394ab6a9f7be60b4c793a1fb07a048c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:17:18,832 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:17:18,922 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67068dc3-bf8a-4398-9238-a37e837c2d9d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:17:18,931 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:17:18,932 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:17:18,961 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:17:18,962 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:17:18,962 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:17:18,962 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:17:18,962 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:17:18,963 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:17:18,963 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:17:18,963 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:17:18,963 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:17:18,963 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:17:18,963 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:17:18,963 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:17:18,964 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:17:18,964 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:17:18,964 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:17:18,964 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:17:18,964 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:17:18,964 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:17:18,964 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:17:18,964 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:17:18,964 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:17:18,965 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:17:18,967 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:17:18,967 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:17:18,967 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:17:18,968 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:17:18,968 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:17:18,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:17:18,968 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:17:18,968 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:17:18,968 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:17:18,968 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:17:18,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:17:18,969 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:17:18,969 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:17:18,969 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:17:18,969 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:17:18,969 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:17:18,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:17:18,970 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:17:18,970 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:17:18,970 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:17:18,970 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:17:18,970 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_67068dc3-bf8a-4398-9238-a37e837c2d9d/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 ! call(reach_error())) ) 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 -> a7e5f5a1db53b7a411af936e12a734750394ab6a9f7be60b4c793a1fb07a048c [2024-11-28 03:17:19,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:17:19,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:17:19,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:17:19,323 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:17:19,324 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:17:19,326 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67068dc3-bf8a-4398-9238-a37e837c2d9d/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/Problem05_label48+token_ring.10.cil-2.c [2024-11-28 03:17:22,328 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67068dc3-bf8a-4398-9238-a37e837c2d9d/bin/uautomizer-verify-aQ6SnzHsRB/data/8b5fd83d5/1a73de80723e466aae7cbb89a4bd132a/FLAG76b38060e [2024-11-28 03:17:23,033 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:17:23,033 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67068dc3-bf8a-4398-9238-a37e837c2d9d/sv-benchmarks/c/combinations/Problem05_label48+token_ring.10.cil-2.c [2024-11-28 03:17:23,091 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67068dc3-bf8a-4398-9238-a37e837c2d9d/bin/uautomizer-verify-aQ6SnzHsRB/data/8b5fd83d5/1a73de80723e466aae7cbb89a4bd132a/FLAG76b38060e [2024-11-28 03:17:23,386 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67068dc3-bf8a-4398-9238-a37e837c2d9d/bin/uautomizer-verify-aQ6SnzHsRB/data/8b5fd83d5/1a73de80723e466aae7cbb89a4bd132a [2024-11-28 03:17:23,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:17:23,391 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:17:23,392 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:17:23,392 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:17:23,397 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:17:23,398 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:17:23" (1/1) ... [2024-11-28 03:17:23,399 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65d189b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:23, skipping insertion in model container [2024-11-28 03:17:23,399 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:17:23" (1/1) ... [2024-11-28 03:17:23,601 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:17:25,599 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67068dc3-bf8a-4398-9238-a37e837c2d9d/sv-benchmarks/c/combinations/Problem05_label48+token_ring.10.cil-2.c[375709,375722] [2024-11-28 03:17:25,650 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67068dc3-bf8a-4398-9238-a37e837c2d9d/sv-benchmarks/c/combinations/Problem05_label48+token_ring.10.cil-2.c[383339,383352] [2024-11-28 03:17:25,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:17:25,972 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:17:26,961 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67068dc3-bf8a-4398-9238-a37e837c2d9d/sv-benchmarks/c/combinations/Problem05_label48+token_ring.10.cil-2.c[375709,375722] [2024-11-28 03:17:26,971 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67068dc3-bf8a-4398-9238-a37e837c2d9d/sv-benchmarks/c/combinations/Problem05_label48+token_ring.10.cil-2.c[383339,383352] [2024-11-28 03:17:26,993 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:17:27,086 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:17:27,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:27 WrapperNode [2024-11-28 03:17:27,090 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:17:27,092 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:17:27,092 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:17:27,092 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:17:27,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:27" (1/1) ... [2024-11-28 03:17:27,255 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:27" (1/1) ... [2024-11-28 03:17:27,784 INFO L138 Inliner]: procedures = 64, calls = 71, calls flagged for inlining = 42, calls inlined = 42, statements flattened = 13099 [2024-11-28 03:17:27,785 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:17:27,785 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:17:27,785 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:17:27,786 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:17:27,796 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:27" (1/1) ... [2024-11-28 03:17:27,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:27" (1/1) ... [2024-11-28 03:17:27,846 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:27" (1/1) ... [2024-11-28 03:17:28,022 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 03:17:28,026 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:27" (1/1) ... [2024-11-28 03:17:28,026 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:27" (1/1) ... [2024-11-28 03:17:28,330 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:27" (1/1) ... [2024-11-28 03:17:28,346 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:27" (1/1) ... [2024-11-28 03:17:28,426 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:27" (1/1) ... [2024-11-28 03:17:28,485 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:27" (1/1) ... [2024-11-28 03:17:28,524 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:27" (1/1) ... [2024-11-28 03:17:28,585 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:17:28,586 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:17:28,586 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:17:28,586 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:17:28,587 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:27" (1/1) ... [2024-11-28 03:17:28,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:17:28,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67068dc3-bf8a-4398-9238-a37e837c2d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:17:28,623 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67068dc3-bf8a-4398-9238-a37e837c2d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:17:28,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67068dc3-bf8a-4398-9238-a37e837c2d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:17:28,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:17:28,716 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-28 03:17:28,716 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-28 03:17:28,716 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-28 03:17:28,717 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-28 03:17:28,717 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-28 03:17:28,717 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-28 03:17:28,717 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-28 03:17:28,717 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-28 03:17:28,717 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-28 03:17:28,717 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-28 03:17:28,717 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-28 03:17:28,717 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-28 03:17:28,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:17:28,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:17:28,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:17:28,903 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:17:28,905 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:17:40,314 INFO L? ?]: Removed 1743 outVars from TransFormulas that were not future-live. [2024-11-28 03:17:40,315 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:17:40,399 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:17:40,400 INFO L312 CfgBuilder]: Removed 28 assume(true) statements. [2024-11-28 03:17:40,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:40 BoogieIcfgContainer [2024-11-28 03:17:40,400 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:17:40,403 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:17:40,403 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:17:40,410 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:17:40,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:17:23" (1/3) ... [2024-11-28 03:17:40,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1917c69e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:17:40, skipping insertion in model container [2024-11-28 03:17:40,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:27" (2/3) ... [2024-11-28 03:17:40,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1917c69e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:17:40, skipping insertion in model container [2024-11-28 03:17:40,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:40" (3/3) ... [2024-11-28 03:17:40,414 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label48+token_ring.10.cil-2.c [2024-11-28 03:17:40,431 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:17:40,435 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label48+token_ring.10.cil-2.c that has 7 procedures, 2513 locations, 1 initial locations, 14 loop locations, and 2 error locations. [2024-11-28 03:17:40,592 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:17:40,610 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;@14201e34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:17:40,610 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 03:17:40,626 INFO L276 IsEmpty]: Start isEmpty. Operand has 2513 states, 2481 states have (on average 1.8456267634018542) internal successors, (4579), 2483 states have internal predecessors, (4579), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-28 03:17:40,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 03:17:40,647 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:40,647 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:40,650 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:40,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:40,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1097383662, now seen corresponding path program 1 times [2024-11-28 03:17:40,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:40,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723585605] [2024-11-28 03:17:40,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:40,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:41,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:41,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:41,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723585605] [2024-11-28 03:17:41,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723585605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:41,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:41,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:17:41,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954032276] [2024-11-28 03:17:41,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:41,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:17:41,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:41,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:17:41,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:41,241 INFO L87 Difference]: Start difference. First operand has 2513 states, 2481 states have (on average 1.8456267634018542) internal successors, (4579), 2483 states have internal predecessors, (4579), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:17:41,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:41,532 INFO L93 Difference]: Finished difference Result 5016 states and 9235 transitions. [2024-11-28 03:17:41,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:17:41,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 154 [2024-11-28 03:17:41,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:41,575 INFO L225 Difference]: With dead ends: 5016 [2024-11-28 03:17:41,575 INFO L226 Difference]: Without dead ends: 2446 [2024-11-28 03:17:41,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:17:41,593 INFO L435 NwaCegarLoop]: 4536 mSDtfsCounter, 505 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 8558 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:41,594 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 8558 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:17:41,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2446 states. [2024-11-28 03:17:41,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2446 to 2446. [2024-11-28 03:17:41,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2446 states, 2414 states have (on average 1.8309859154929577) internal successors, (4420), 2416 states have internal predecessors, (4420), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-28 03:17:41,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2446 states to 2446 states and 4468 transitions. [2024-11-28 03:17:41,780 INFO L78 Accepts]: Start accepts. Automaton has 2446 states and 4468 transitions. Word has length 154 [2024-11-28 03:17:41,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:41,783 INFO L471 AbstractCegarLoop]: Abstraction has 2446 states and 4468 transitions. [2024-11-28 03:17:41,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:17:41,784 INFO L276 IsEmpty]: Start isEmpty. Operand 2446 states and 4468 transitions. [2024-11-28 03:17:41,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 03:17:41,793 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:41,793 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:41,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:17:41,798 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:41,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:41,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1253364204, now seen corresponding path program 1 times [2024-11-28 03:17:41,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:41,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521442232] [2024-11-28 03:17:41,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:41,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:41,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:42,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:42,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:42,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521442232] [2024-11-28 03:17:42,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521442232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:42,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:42,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:17:42,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747407398] [2024-11-28 03:17:42,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:42,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:17:42,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:42,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:17:42,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:17:42,387 INFO L87 Difference]: Start difference. First operand 2446 states and 4468 transitions. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:17:43,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:43,876 INFO L93 Difference]: Finished difference Result 3124 states and 5561 transitions. [2024-11-28 03:17:43,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:17:43,877 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 154 [2024-11-28 03:17:43,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:43,898 INFO L225 Difference]: With dead ends: 3124 [2024-11-28 03:17:43,898 INFO L226 Difference]: Without dead ends: 2817 [2024-11-28 03:17:43,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:17:43,903 INFO L435 NwaCegarLoop]: 4624 mSDtfsCounter, 4942 mSDsluCounter, 14033 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4960 SdHoareTripleChecker+Valid, 18657 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:43,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4960 Valid, 18657 Invalid, 999 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [33 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:17:43,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2817 states. [2024-11-28 03:17:44,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2817 to 2771. [2024-11-28 03:17:44,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2710 states have (on average 1.8055350553505536) internal successors, (4893), 2714 states have internal predecessors, (4893), 45 states have call successors, (45), 12 states have call predecessors, (45), 14 states have return successors, (52), 46 states have call predecessors, (52), 45 states have call successors, (52) [2024-11-28 03:17:44,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4990 transitions. [2024-11-28 03:17:44,035 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4990 transitions. Word has length 154 [2024-11-28 03:17:44,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:44,035 INFO L471 AbstractCegarLoop]: Abstraction has 2771 states and 4990 transitions. [2024-11-28 03:17:44,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:17:44,036 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4990 transitions. [2024-11-28 03:17:44,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 03:17:44,040 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:44,040 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:44,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:17:44,040 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:44,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:44,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1542183594, now seen corresponding path program 1 times [2024-11-28 03:17:44,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:44,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134752663] [2024-11-28 03:17:44,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:44,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:44,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:44,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:44,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:44,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134752663] [2024-11-28 03:17:44,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134752663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:44,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:44,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:17:44,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162056376] [2024-11-28 03:17:44,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:44,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:17:44,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:44,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:17:44,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:17:44,410 INFO L87 Difference]: Start difference. First operand 2771 states and 4990 transitions. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:17:45,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:45,607 INFO L93 Difference]: Finished difference Result 4106 states and 7142 transitions. [2024-11-28 03:17:45,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:17:45,608 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 154 [2024-11-28 03:17:45,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:45,627 INFO L225 Difference]: With dead ends: 4106 [2024-11-28 03:17:45,628 INFO L226 Difference]: Without dead ends: 3476 [2024-11-28 03:17:45,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:17:45,633 INFO L435 NwaCegarLoop]: 4542 mSDtfsCounter, 4938 mSDsluCounter, 13827 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4956 SdHoareTripleChecker+Valid, 18369 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:45,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4956 Valid, 18369 Invalid, 949 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [36 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:17:45,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3476 states. [2024-11-28 03:17:45,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3476 to 3411. [2024-11-28 03:17:45,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3411 states, 3296 states have (on average 1.7675970873786409) internal successors, (5826), 3304 states have internal predecessors, (5826), 83 states have call successors, (83), 24 states have call predecessors, (83), 30 states have return successors, (106), 86 states have call predecessors, (106), 83 states have call successors, (106) [2024-11-28 03:17:45,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3411 states to 3411 states and 6015 transitions. [2024-11-28 03:17:45,796 INFO L78 Accepts]: Start accepts. Automaton has 3411 states and 6015 transitions. Word has length 154 [2024-11-28 03:17:45,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:45,797 INFO L471 AbstractCegarLoop]: Abstraction has 3411 states and 6015 transitions. [2024-11-28 03:17:45,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:17:45,797 INFO L276 IsEmpty]: Start isEmpty. Operand 3411 states and 6015 transitions. [2024-11-28 03:17:45,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 03:17:45,802 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:45,802 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:45,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:17:45,802 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:45,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:45,803 INFO L85 PathProgramCache]: Analyzing trace with hash 997311020, now seen corresponding path program 1 times [2024-11-28 03:17:45,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:45,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910098064] [2024-11-28 03:17:45,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:45,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:45,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:46,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:46,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:46,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910098064] [2024-11-28 03:17:46,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910098064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:46,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:46,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:17:46,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584499179] [2024-11-28 03:17:46,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:46,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:17:46,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:46,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:17:46,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:17:46,224 INFO L87 Difference]: Start difference. First operand 3411 states and 6015 transitions. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:17:47,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:47,448 INFO L93 Difference]: Finished difference Result 6179 states and 10529 transitions. [2024-11-28 03:17:47,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:17:47,448 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 154 [2024-11-28 03:17:47,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:47,479 INFO L225 Difference]: With dead ends: 6179 [2024-11-28 03:17:47,480 INFO L226 Difference]: Without dead ends: 4909 [2024-11-28 03:17:47,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:17:47,488 INFO L435 NwaCegarLoop]: 4618 mSDtfsCounter, 4932 mSDsluCounter, 14002 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4950 SdHoareTripleChecker+Valid, 18620 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:47,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4950 Valid, 18620 Invalid, 999 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [33 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:17:47,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4909 states. [2024-11-28 03:17:47,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4909 to 4807. [2024-11-28 03:17:47,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4807 states, 4578 states have (on average 1.726518130187855) internal successors, (7904), 4600 states have internal predecessors, (7904), 159 states have call successors, (159), 48 states have call predecessors, (159), 68 states have return successors, (238), 166 states have call predecessors, (238), 159 states have call successors, (238) [2024-11-28 03:17:47,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4807 states to 4807 states and 8301 transitions. [2024-11-28 03:17:47,701 INFO L78 Accepts]: Start accepts. Automaton has 4807 states and 8301 transitions. Word has length 154 [2024-11-28 03:17:47,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:47,702 INFO L471 AbstractCegarLoop]: Abstraction has 4807 states and 8301 transitions. [2024-11-28 03:17:47,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:17:47,703 INFO L276 IsEmpty]: Start isEmpty. Operand 4807 states and 8301 transitions. [2024-11-28 03:17:47,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 03:17:47,710 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:47,710 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:47,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:17:47,711 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:47,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:47,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1672471146, now seen corresponding path program 1 times [2024-11-28 03:17:47,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:47,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995992213] [2024-11-28 03:17:47,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:47,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:47,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:47,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:47,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:47,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995992213] [2024-11-28 03:17:47,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995992213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:47,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:47,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:17:47,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976851535] [2024-11-28 03:17:47,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:47,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:17:47,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:47,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:17:47,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:17:47,973 INFO L87 Difference]: Start difference. First operand 4807 states and 8301 transitions. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:17:49,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:49,206 INFO L93 Difference]: Finished difference Result 10770 states and 18235 transitions. [2024-11-28 03:17:49,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:17:49,206 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 154 [2024-11-28 03:17:49,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:49,250 INFO L225 Difference]: With dead ends: 10770 [2024-11-28 03:17:49,250 INFO L226 Difference]: Without dead ends: 8104 [2024-11-28 03:17:49,261 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:17:49,262 INFO L435 NwaCegarLoop]: 4617 mSDtfsCounter, 4927 mSDsluCounter, 13994 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4945 SdHoareTripleChecker+Valid, 18611 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:49,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4945 Valid, 18611 Invalid, 999 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [33 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:17:49,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8104 states. [2024-11-28 03:17:49,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8104 to 7931. [2024-11-28 03:17:49,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7931 states, 7456 states have (on average 1.698766094420601) internal successors, (12666), 7524 states have internal predecessors, (12666), 311 states have call successors, (311), 96 states have call predecessors, (311), 162 states have return successors, (598), 326 states have call predecessors, (598), 311 states have call successors, (598) [2024-11-28 03:17:49,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7931 states to 7931 states and 13575 transitions. [2024-11-28 03:17:49,653 INFO L78 Accepts]: Start accepts. Automaton has 7931 states and 13575 transitions. Word has length 154 [2024-11-28 03:17:49,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:49,654 INFO L471 AbstractCegarLoop]: Abstraction has 7931 states and 13575 transitions. [2024-11-28 03:17:49,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:17:49,654 INFO L276 IsEmpty]: Start isEmpty. Operand 7931 states and 13575 transitions. [2024-11-28 03:17:49,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 03:17:49,662 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:49,662 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:49,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:17:49,663 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:49,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:49,663 INFO L85 PathProgramCache]: Analyzing trace with hash 724419180, now seen corresponding path program 1 times [2024-11-28 03:17:49,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:49,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050074065] [2024-11-28 03:17:49,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:49,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:49,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:49,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:49,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:49,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050074065] [2024-11-28 03:17:49,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050074065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:49,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:49,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:17:49,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814493805] [2024-11-28 03:17:49,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:49,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:17:49,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:49,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:17:49,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:17:49,892 INFO L87 Difference]: Start difference. First operand 7931 states and 13575 transitions. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:17:51,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:51,268 INFO L93 Difference]: Finished difference Result 21221 states and 36437 transitions. [2024-11-28 03:17:51,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:17:51,269 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 154 [2024-11-28 03:17:51,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:51,370 INFO L225 Difference]: With dead ends: 21221 [2024-11-28 03:17:51,371 INFO L226 Difference]: Without dead ends: 15431 [2024-11-28 03:17:51,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:17:51,397 INFO L435 NwaCegarLoop]: 4615 mSDtfsCounter, 4922 mSDsluCounter, 13982 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4940 SdHoareTripleChecker+Valid, 18597 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:51,398 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4940 Valid, 18597 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:17:51,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15431 states. [2024-11-28 03:17:52,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15431 to 15123. [2024-11-28 03:17:52,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15123 states, 14102 states have (on average 1.6953623599489434) internal successors, (23908), 14316 states have internal predecessors, (23908), 615 states have call successors, (615), 192 states have call predecessors, (615), 404 states have return successors, (1702), 646 states have call predecessors, (1702), 615 states have call successors, (1702) [2024-11-28 03:17:52,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15123 states to 15123 states and 26225 transitions. [2024-11-28 03:17:52,157 INFO L78 Accepts]: Start accepts. Automaton has 15123 states and 26225 transitions. Word has length 154 [2024-11-28 03:17:52,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:52,159 INFO L471 AbstractCegarLoop]: Abstraction has 15123 states and 26225 transitions. [2024-11-28 03:17:52,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:17:52,160 INFO L276 IsEmpty]: Start isEmpty. Operand 15123 states and 26225 transitions. [2024-11-28 03:17:52,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 03:17:52,173 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:52,173 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:52,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:17:52,174 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:52,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:52,174 INFO L85 PathProgramCache]: Analyzing trace with hash 139647530, now seen corresponding path program 1 times [2024-11-28 03:17:52,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:52,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132600198] [2024-11-28 03:17:52,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:52,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:52,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:52,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:52,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:52,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132600198] [2024-11-28 03:17:52,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132600198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:52,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:52,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:17:52,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086844600] [2024-11-28 03:17:52,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:52,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:17:52,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:52,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:17:52,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:17:52,403 INFO L87 Difference]: Start difference. First operand 15123 states and 26225 transitions. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:17:54,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:54,219 INFO L93 Difference]: Finished difference Result 45724 states and 81291 transitions. [2024-11-28 03:17:54,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:17:54,220 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 154 [2024-11-28 03:17:54,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:54,373 INFO L225 Difference]: With dead ends: 45724 [2024-11-28 03:17:54,373 INFO L226 Difference]: Without dead ends: 32742 [2024-11-28 03:17:54,427 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:17:54,428 INFO L435 NwaCegarLoop]: 4613 mSDtfsCounter, 4917 mSDsluCounter, 13970 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4935 SdHoareTripleChecker+Valid, 18583 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:54,429 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4935 Valid, 18583 Invalid, 999 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [33 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:17:54,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32742 states. [2024-11-28 03:17:56,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32742 to 32179. [2024-11-28 03:17:56,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32179 states, 29904 states have (on average 1.713282504012841) internal successors, (51234), 30572 states have internal predecessors, (51234), 1223 states have call successors, (1223), 384 states have call predecessors, (1223), 1050 states have return successors, (5446), 1286 states have call predecessors, (5446), 1223 states have call successors, (5446) [2024-11-28 03:17:56,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32179 states to 32179 states and 57903 transitions. [2024-11-28 03:17:56,399 INFO L78 Accepts]: Start accepts. Automaton has 32179 states and 57903 transitions. Word has length 154 [2024-11-28 03:17:56,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:17:56,399 INFO L471 AbstractCegarLoop]: Abstraction has 32179 states and 57903 transitions. [2024-11-28 03:17:56,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:17:56,399 INFO L276 IsEmpty]: Start isEmpty. Operand 32179 states and 57903 transitions. [2024-11-28 03:17:56,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 03:17:56,423 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:17:56,423 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:17:56,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:17:56,424 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:17:56,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:17:56,425 INFO L85 PathProgramCache]: Analyzing trace with hash -294858068, now seen corresponding path program 1 times [2024-11-28 03:17:56,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:17:56,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210062475] [2024-11-28 03:17:56,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:17:56,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:17:56,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:17:56,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:17:56,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:17:56,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210062475] [2024-11-28 03:17:56,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210062475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:17:56,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:17:56,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:17:56,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839400846] [2024-11-28 03:17:56,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:17:56,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:17:56,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:17:56,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:17:56,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:17:56,669 INFO L87 Difference]: Start difference. First operand 32179 states and 57903 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:17:58,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:17:58,528 INFO L93 Difference]: Finished difference Result 73883 states and 137312 transitions. [2024-11-28 03:17:58,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:17:58,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 154 [2024-11-28 03:17:58,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:17:58,736 INFO L225 Difference]: With dead ends: 73883 [2024-11-28 03:17:58,737 INFO L226 Difference]: Without dead ends: 43843 [2024-11-28 03:17:58,849 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:17:58,850 INFO L435 NwaCegarLoop]: 4330 mSDtfsCounter, 4644 mSDsluCounter, 8525 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4662 SdHoareTripleChecker+Valid, 12855 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:17:58,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4662 Valid, 12855 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:17:58,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43843 states. [2024-11-28 03:18:01,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43843 to 32179. [2024-11-28 03:18:01,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32179 states, 29904 states have (on average 1.7111088817549491) internal successors, (51169), 30572 states have internal predecessors, (51169), 1223 states have call successors, (1223), 384 states have call predecessors, (1223), 1050 states have return successors, (5446), 1286 states have call predecessors, (5446), 1223 states have call successors, (5446) [2024-11-28 03:18:01,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32179 states to 32179 states and 57838 transitions. [2024-11-28 03:18:01,391 INFO L78 Accepts]: Start accepts. Automaton has 32179 states and 57838 transitions. Word has length 154 [2024-11-28 03:18:01,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:01,392 INFO L471 AbstractCegarLoop]: Abstraction has 32179 states and 57838 transitions. [2024-11-28 03:18:01,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:18:01,392 INFO L276 IsEmpty]: Start isEmpty. Operand 32179 states and 57838 transitions. [2024-11-28 03:18:01,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 03:18:01,413 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:01,414 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:01,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:18:01,415 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:01,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:01,417 INFO L85 PathProgramCache]: Analyzing trace with hash -724516374, now seen corresponding path program 1 times [2024-11-28 03:18:01,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:01,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284288181] [2024-11-28 03:18:01,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:01,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:01,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:01,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:01,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284288181] [2024-11-28 03:18:01,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284288181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:01,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:01,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:18:01,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853349871] [2024-11-28 03:18:01,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:01,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:18:01,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:01,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:18:01,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:18:01,696 INFO L87 Difference]: Start difference. First operand 32179 states and 57838 transitions. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:18:05,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:05,192 INFO L93 Difference]: Finished difference Result 103317 states and 193667 transitions. [2024-11-28 03:18:05,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:18:05,193 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 154 [2024-11-28 03:18:05,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:05,637 INFO L225 Difference]: With dead ends: 103317 [2024-11-28 03:18:05,637 INFO L226 Difference]: Without dead ends: 73279 [2024-11-28 03:18:05,721 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:18:05,723 INFO L435 NwaCegarLoop]: 4601 mSDtfsCounter, 4901 mSDsluCounter, 13921 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4919 SdHoareTripleChecker+Valid, 18522 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:05,723 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4919 Valid, 18522 Invalid, 999 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [33 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:18:05,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73279 states. [2024-11-28 03:18:09,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73279 to 72367. [2024-11-28 03:18:09,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72367 states, 67098 states have (on average 1.7350591671882918) internal successors, (116419), 69160 states have internal predecessors, (116419), 2439 states have call successors, (2439), 768 states have call predecessors, (2439), 2828 states have return successors, (19078), 2566 states have call predecessors, (19078), 2439 states have call successors, (19078) [2024-11-28 03:18:09,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72367 states to 72367 states and 137936 transitions. [2024-11-28 03:18:09,618 INFO L78 Accepts]: Start accepts. Automaton has 72367 states and 137936 transitions. Word has length 154 [2024-11-28 03:18:09,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:09,618 INFO L471 AbstractCegarLoop]: Abstraction has 72367 states and 137936 transitions. [2024-11-28 03:18:09,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:18:09,619 INFO L276 IsEmpty]: Start isEmpty. Operand 72367 states and 137936 transitions. [2024-11-28 03:18:09,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 03:18:09,649 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:09,649 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:09,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:18:09,650 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:09,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:09,655 INFO L85 PathProgramCache]: Analyzing trace with hash 222521512, now seen corresponding path program 1 times [2024-11-28 03:18:09,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:09,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041537709] [2024-11-28 03:18:09,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:09,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:10,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:10,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:10,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041537709] [2024-11-28 03:18:10,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041537709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:10,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:10,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:18:10,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157915074] [2024-11-28 03:18:10,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:10,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:18:10,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:10,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:18:10,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:18:10,228 INFO L87 Difference]: Start difference. First operand 72367 states and 137936 transitions. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:18:16,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:16,005 INFO L93 Difference]: Finished difference Result 242868 states and 492137 transitions. [2024-11-28 03:18:16,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:18:16,005 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 154 [2024-11-28 03:18:16,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:17,340 INFO L225 Difference]: With dead ends: 242868 [2024-11-28 03:18:17,340 INFO L226 Difference]: Without dead ends: 172642 [2024-11-28 03:18:17,501 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:18:17,502 INFO L435 NwaCegarLoop]: 4537 mSDtfsCounter, 4897 mSDsluCounter, 13770 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4915 SdHoareTripleChecker+Valid, 18307 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:17,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4915 Valid, 18307 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:18:17,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172642 states.