./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec9_product11.cil.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_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec9_product11.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1 --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 2156ba1e79a86c856553f139302f2b9940a34efa4e31eb139d6bea893c29b00d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 09:01:14,750 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 09:01:14,810 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 09:01:14,816 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 09:01:14,816 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 09:01:14,839 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 09:01:14,840 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 09:01:14,840 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 09:01:14,840 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 09:01:14,840 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 09:01:14,840 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 09:01:14,840 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 09:01:14,841 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 09:01:14,841 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 09:01:14,841 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 09:01:14,841 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 09:01:14,841 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 09:01:14,841 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 09:01:14,841 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 09:01:14,841 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 09:01:14,842 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 09:01:14,842 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 09:01:14,842 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 09:01:14,842 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 09:01:14,842 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 09:01:14,842 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 09:01:14,842 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 09:01:14,842 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 09:01:14,842 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 09:01:14,842 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 09:01:14,842 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 09:01:14,843 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 09:01:14,843 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:01:14,843 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 09:01:14,843 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 09:01:14,843 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 09:01:14,843 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 09:01:14,843 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:01:14,843 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 09:01:14,843 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 09:01:14,843 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 09:01:14,843 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 09:01:14,844 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 09:01:14,844 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 09:01:14,844 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 09:01:14,844 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 09:01:14,844 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 09:01:14,844 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 09:01:14,844 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_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> 2156ba1e79a86c856553f139302f2b9940a34efa4e31eb139d6bea893c29b00d [2024-12-02 09:01:15,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 09:01:15,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 09:01:15,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 09:01:15,076 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 09:01:15,076 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 09:01:15,077 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/elevator_spec9_product11.cil.c [2024-12-02 09:01:17,713 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/data/cf05b8409/fff5da02a2494b348b29cc3391e62f7f/FLAG4cc1ff093 [2024-12-02 09:01:18,009 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 09:01:18,009 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/sv-benchmarks/c/product-lines/elevator_spec9_product11.cil.c [2024-12-02 09:01:18,025 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/data/cf05b8409/fff5da02a2494b348b29cc3391e62f7f/FLAG4cc1ff093 [2024-12-02 09:01:18,299 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/data/cf05b8409/fff5da02a2494b348b29cc3391e62f7f [2024-12-02 09:01:18,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 09:01:18,303 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 09:01:18,304 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 09:01:18,304 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 09:01:18,308 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 09:01:18,308 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:01:18" (1/1) ... [2024-12-02 09:01:18,309 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@386c31ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:18, skipping insertion in model container [2024-12-02 09:01:18,309 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:01:18" (1/1) ... [2024-12-02 09:01:18,352 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 09:01:18,807 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_5d2679ef-2a03-4e8a-a372-7118a9635d1c/sv-benchmarks/c/product-lines/elevator_spec9_product11.cil.c[71954,71967] [2024-12-02 09:01:18,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 09:01:18,823 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 09:01:18,830 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [48] [2024-12-02 09:01:18,831 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [148] [2024-12-02 09:01:18,831 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [505] [2024-12-02 09:01:18,831 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [871] [2024-12-02 09:01:18,831 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1034] [2024-12-02 09:01:18,832 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1069] [2024-12-02 09:01:18,832 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1189] [2024-12-02 09:01:18,832 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1201] [2024-12-02 09:01:18,832 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2729] [2024-12-02 09:01:18,832 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3390] [2024-12-02 09:01:18,933 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_5d2679ef-2a03-4e8a-a372-7118a9635d1c/sv-benchmarks/c/product-lines/elevator_spec9_product11.cil.c[71954,71967] [2024-12-02 09:01:18,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 09:01:18,959 INFO L204 MainTranslator]: Completed translation [2024-12-02 09:01:18,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:18 WrapperNode [2024-12-02 09:01:18,960 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 09:01:18,961 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 09:01:18,961 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 09:01:18,961 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 09:01:18,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:18" (1/1) ... [2024-12-02 09:01:18,987 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:18" (1/1) ... [2024-12-02 09:01:19,031 INFO L138 Inliner]: procedures = 93, calls = 335, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 1086 [2024-12-02 09:01:19,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 09:01:19,032 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 09:01:19,032 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 09:01:19,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 09:01:19,043 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:18" (1/1) ... [2024-12-02 09:01:19,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:18" (1/1) ... [2024-12-02 09:01:19,049 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:18" (1/1) ... [2024-12-02 09:01:19,075 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-12-02 09:01:19,075 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:18" (1/1) ... [2024-12-02 09:01:19,075 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:18" (1/1) ... [2024-12-02 09:01:19,095 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:18" (1/1) ... [2024-12-02 09:01:19,097 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:18" (1/1) ... [2024-12-02 09:01:19,110 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:18" (1/1) ... [2024-12-02 09:01:19,116 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:18" (1/1) ... [2024-12-02 09:01:19,120 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:18" (1/1) ... [2024-12-02 09:01:19,129 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 09:01:19,130 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 09:01:19,130 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 09:01:19,130 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 09:01:19,131 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:18" (1/1) ... [2024-12-02 09:01:19,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 09:01:19,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:01:19,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 09:01:19,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 09:01:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 09:01:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-12-02 09:01:19,193 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-12-02 09:01:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-12-02 09:01:19,193 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-12-02 09:01:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-12-02 09:01:19,193 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-12-02 09:01:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-12-02 09:01:19,193 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-12-02 09:01:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-12-02 09:01:19,194 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-12-02 09:01:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-12-02 09:01:19,194 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-12-02 09:01:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-12-02 09:01:19,194 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-12-02 09:01:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-12-02 09:01:19,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-12-02 09:01:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-12-02 09:01:19,194 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-12-02 09:01:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-12-02 09:01:19,194 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-12-02 09:01:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-12-02 09:01:19,195 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-12-02 09:01:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-12-02 09:01:19,195 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-12-02 09:01:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-12-02 09:01:19,195 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-12-02 09:01:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2024-12-02 09:01:19,195 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2024-12-02 09:01:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-12-02 09:01:19,195 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-12-02 09:01:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-12-02 09:01:19,196 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-12-02 09:01:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-12-02 09:01:19,196 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-12-02 09:01:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-12-02 09:01:19,196 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-12-02 09:01:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2024-12-02 09:01:19,196 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2024-12-02 09:01:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 09:01:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 09:01:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 09:01:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 09:01:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 09:01:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 09:01:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 09:01:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 09:01:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 09:01:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 09:01:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 09:01:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 09:01:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 09:01:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 09:01:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 09:01:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 09:01:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 09:01:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-12-02 09:01:19,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-12-02 09:01:19,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-12-02 09:01:19,198 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-12-02 09:01:19,198 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-12-02 09:01:19,198 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-12-02 09:01:19,198 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-12-02 09:01:19,198 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-12-02 09:01:19,198 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-12-02 09:01:19,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 09:01:19,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 09:01:19,198 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-12-02 09:01:19,199 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-12-02 09:01:19,400 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 09:01:19,402 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 09:01:20,541 INFO L? ?]: Removed 437 outVars from TransFormulas that were not future-live. [2024-12-02 09:01:20,541 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 09:01:20,563 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 09:01:20,564 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 09:01:20,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:01:20 BoogieIcfgContainer [2024-12-02 09:01:20,564 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 09:01:20,566 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 09:01:20,566 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 09:01:20,571 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 09:01:20,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 09:01:18" (1/3) ... [2024-12-02 09:01:20,572 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161c307a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:01:20, skipping insertion in model container [2024-12-02 09:01:20,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:18" (2/3) ... [2024-12-02 09:01:20,572 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161c307a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:01:20, skipping insertion in model container [2024-12-02 09:01:20,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:01:20" (3/3) ... [2024-12-02 09:01:20,574 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product11.cil.c [2024-12-02 09:01:20,589 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 09:01:20,592 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec9_product11.cil.c that has 24 procedures, 544 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 09:01:20,655 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 09:01:20,668 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;@3a6d7422, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 09:01:20,668 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 09:01:20,674 INFO L276 IsEmpty]: Start isEmpty. Operand has 544 states, 428 states have (on average 1.7009345794392523) internal successors, (728), 449 states have internal predecessors, (728), 91 states have call successors, (91), 23 states have call predecessors, (91), 23 states have return successors, (91), 85 states have call predecessors, (91), 91 states have call successors, (91) [2024-12-02 09:01:20,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 09:01:20,700 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:20,701 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:20,701 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:20,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:20,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1079933707, now seen corresponding path program 1 times [2024-12-02 09:01:20,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:20,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070518940] [2024-12-02 09:01:20,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:20,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:21,331 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 09:01:21,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:21,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070518940] [2024-12-02 09:01:21,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070518940] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:21,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:21,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:01:21,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317084295] [2024-12-02 09:01:21,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:21,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:01:21,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:21,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:01:21,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:01:21,367 INFO L87 Difference]: Start difference. First operand has 544 states, 428 states have (on average 1.7009345794392523) internal successors, (728), 449 states have internal predecessors, (728), 91 states have call successors, (91), 23 states have call predecessors, (91), 23 states have return successors, (91), 85 states have call predecessors, (91), 91 states have call successors, (91) Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:01:21,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:21,535 INFO L93 Difference]: Finished difference Result 1068 states and 1795 transitions. [2024-12-02 09:01:21,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:01:21,538 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 104 [2024-12-02 09:01:21,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:21,555 INFO L225 Difference]: With dead ends: 1068 [2024-12-02 09:01:21,555 INFO L226 Difference]: Without dead ends: 536 [2024-12-02 09:01:21,563 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:01:21,567 INFO L435 NwaCegarLoop]: 889 mSDtfsCounter, 5 mSDsluCounter, 1774 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2663 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:21,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2663 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:01:21,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-12-02 09:01:21,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2024-12-02 09:01:21,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 422 states have (on average 1.6966824644549763) internal successors, (716), 441 states have internal predecessors, (716), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 09:01:21,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 893 transitions. [2024-12-02 09:01:21,656 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 893 transitions. Word has length 104 [2024-12-02 09:01:21,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:21,656 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 893 transitions. [2024-12-02 09:01:21,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:01:21,657 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 893 transitions. [2024-12-02 09:01:21,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 09:01:21,664 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:21,664 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:21,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 09:01:21,665 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:21,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:21,665 INFO L85 PathProgramCache]: Analyzing trace with hash -15827200, now seen corresponding path program 1 times [2024-12-02 09:01:21,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:21,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358245040] [2024-12-02 09:01:21,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:21,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:21,881 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 09:01:21,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:21,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358245040] [2024-12-02 09:01:21,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358245040] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:21,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:21,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:01:21,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107976291] [2024-12-02 09:01:21,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:21,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:01:21,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:21,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:01:21,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:01:21,885 INFO L87 Difference]: Start difference. First operand 536 states and 893 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:01:21,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:21,974 INFO L93 Difference]: Finished difference Result 1054 states and 1763 transitions. [2024-12-02 09:01:21,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:01:21,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 106 [2024-12-02 09:01:21,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:21,982 INFO L225 Difference]: With dead ends: 1054 [2024-12-02 09:01:21,982 INFO L226 Difference]: Without dead ends: 536 [2024-12-02 09:01:21,985 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:01:21,986 INFO L435 NwaCegarLoop]: 882 mSDtfsCounter, 4 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2642 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:21,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2642 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:01:21,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-12-02 09:01:22,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2024-12-02 09:01:22,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 422 states have (on average 1.6943127962085307) internal successors, (715), 441 states have internal predecessors, (715), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 09:01:22,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 892 transitions. [2024-12-02 09:01:22,025 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 892 transitions. Word has length 106 [2024-12-02 09:01:22,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:22,025 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 892 transitions. [2024-12-02 09:01:22,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:01:22,025 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 892 transitions. [2024-12-02 09:01:22,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 09:01:22,030 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:22,031 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:22,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 09:01:22,031 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:22,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:22,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1732409852, now seen corresponding path program 1 times [2024-12-02 09:01:22,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:22,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720784148] [2024-12-02 09:01:22,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:22,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:22,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:22,200 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 09:01:22,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:22,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720784148] [2024-12-02 09:01:22,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720784148] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:22,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:22,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:01:22,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928640690] [2024-12-02 09:01:22,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:22,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:01:22,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:22,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:01:22,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:01:22,203 INFO L87 Difference]: Start difference. First operand 536 states and 892 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:01:22,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:22,276 INFO L93 Difference]: Finished difference Result 1054 states and 1762 transitions. [2024-12-02 09:01:22,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:01:22,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 107 [2024-12-02 09:01:22,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:22,283 INFO L225 Difference]: With dead ends: 1054 [2024-12-02 09:01:22,283 INFO L226 Difference]: Without dead ends: 536 [2024-12-02 09:01:22,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:01:22,288 INFO L435 NwaCegarLoop]: 882 mSDtfsCounter, 3 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2642 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:22,288 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2642 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:01:22,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-12-02 09:01:22,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2024-12-02 09:01:22,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 422 states have (on average 1.6919431279620853) internal successors, (714), 441 states have internal predecessors, (714), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 09:01:22,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 891 transitions. [2024-12-02 09:01:22,319 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 891 transitions. Word has length 107 [2024-12-02 09:01:22,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:22,319 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 891 transitions. [2024-12-02 09:01:22,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:01:22,320 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 891 transitions. [2024-12-02 09:01:22,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 09:01:22,336 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:22,337 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:22,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 09:01:22,337 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:22,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:22,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1673834364, now seen corresponding path program 1 times [2024-12-02 09:01:22,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:22,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872737004] [2024-12-02 09:01:22,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:22,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:22,488 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 09:01:22,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:22,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872737004] [2024-12-02 09:01:22,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872737004] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:22,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:22,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:01:22,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33621713] [2024-12-02 09:01:22,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:22,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:01:22,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:22,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:01:22,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:01:22,489 INFO L87 Difference]: Start difference. First operand 536 states and 891 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:01:22,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:22,542 INFO L93 Difference]: Finished difference Result 1054 states and 1761 transitions. [2024-12-02 09:01:22,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:01:22,543 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 108 [2024-12-02 09:01:22,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:22,548 INFO L225 Difference]: With dead ends: 1054 [2024-12-02 09:01:22,548 INFO L226 Difference]: Without dead ends: 536 [2024-12-02 09:01:22,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:01:22,551 INFO L435 NwaCegarLoop]: 882 mSDtfsCounter, 2 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2642 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:22,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2642 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:01:22,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-12-02 09:01:22,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2024-12-02 09:01:22,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 422 states have (on average 1.6895734597156398) internal successors, (713), 441 states have internal predecessors, (713), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 09:01:22,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 890 transitions. [2024-12-02 09:01:22,577 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 890 transitions. Word has length 108 [2024-12-02 09:01:22,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:22,577 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 890 transitions. [2024-12-02 09:01:22,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:01:22,578 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 890 transitions. [2024-12-02 09:01:22,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 09:01:22,581 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:22,581 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:22,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 09:01:22,582 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:22,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:22,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1660240640, now seen corresponding path program 1 times [2024-12-02 09:01:22,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:22,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306071672] [2024-12-02 09:01:22,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:22,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:22,715 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 09:01:22,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:22,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306071672] [2024-12-02 09:01:22,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306071672] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:22,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:22,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:01:22,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741173758] [2024-12-02 09:01:22,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:22,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:01:22,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:22,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:01:22,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:01:22,717 INFO L87 Difference]: Start difference. First operand 536 states and 890 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:01:22,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:22,768 INFO L93 Difference]: Finished difference Result 1054 states and 1760 transitions. [2024-12-02 09:01:22,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:01:22,769 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2024-12-02 09:01:22,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:22,774 INFO L225 Difference]: With dead ends: 1054 [2024-12-02 09:01:22,774 INFO L226 Difference]: Without dead ends: 536 [2024-12-02 09:01:22,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:01:22,778 INFO L435 NwaCegarLoop]: 882 mSDtfsCounter, 1 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2642 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:22,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2642 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:01:22,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-12-02 09:01:22,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2024-12-02 09:01:22,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 422 states have (on average 1.6872037914691944) internal successors, (712), 441 states have internal predecessors, (712), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 09:01:22,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 889 transitions. [2024-12-02 09:01:22,804 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 889 transitions. Word has length 109 [2024-12-02 09:01:22,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:22,804 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 889 transitions. [2024-12-02 09:01:22,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:01:22,805 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 889 transitions. [2024-12-02 09:01:22,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 09:01:22,808 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:22,808 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:22,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 09:01:22,809 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:22,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:22,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1289114120, now seen corresponding path program 1 times [2024-12-02 09:01:22,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:22,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791710252] [2024-12-02 09:01:22,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:22,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:23,044 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 09:01:23,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:23,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791710252] [2024-12-02 09:01:23,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791710252] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:23,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:23,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 09:01:23,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447438644] [2024-12-02 09:01:23,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:23,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 09:01:23,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:23,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 09:01:23,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:01:23,046 INFO L87 Difference]: Start difference. First operand 536 states and 889 transitions. Second operand has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 09:01:23,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:23,158 INFO L93 Difference]: Finished difference Result 1020 states and 1692 transitions. [2024-12-02 09:01:23,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 09:01:23,159 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 110 [2024-12-02 09:01:23,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:23,164 INFO L225 Difference]: With dead ends: 1020 [2024-12-02 09:01:23,164 INFO L226 Difference]: Without dead ends: 551 [2024-12-02 09:01:23,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 09:01:23,167 INFO L435 NwaCegarLoop]: 879 mSDtfsCounter, 91 mSDsluCounter, 4314 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5193 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:23,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5193 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:01:23,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-12-02 09:01:23,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 549. [2024-12-02 09:01:23,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 432 states have (on average 1.6828703703703705) internal successors, (727), 453 states have internal predecessors, (727), 92 states have call successors, (92), 23 states have call predecessors, (92), 24 states have return successors, (89), 85 states have call predecessors, (89), 87 states have call successors, (89) [2024-12-02 09:01:23,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 908 transitions. [2024-12-02 09:01:23,197 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 908 transitions. Word has length 110 [2024-12-02 09:01:23,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:23,197 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 908 transitions. [2024-12-02 09:01:23,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 09:01:23,198 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 908 transitions. [2024-12-02 09:01:23,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 09:01:23,201 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:23,202 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:23,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 09:01:23,202 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:23,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:23,202 INFO L85 PathProgramCache]: Analyzing trace with hash 847359625, now seen corresponding path program 1 times [2024-12-02 09:01:23,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:23,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506475941] [2024-12-02 09:01:23,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:23,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:23,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:23,318 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 09:01:23,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:23,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506475941] [2024-12-02 09:01:23,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506475941] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:23,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:23,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:01:23,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674995059] [2024-12-02 09:01:23,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:23,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:01:23,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:23,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:01:23,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:01:23,320 INFO L87 Difference]: Start difference. First operand 549 states and 908 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:01:23,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:23,382 INFO L93 Difference]: Finished difference Result 1072 states and 1786 transitions. [2024-12-02 09:01:23,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:01:23,382 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 110 [2024-12-02 09:01:23,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:23,388 INFO L225 Difference]: With dead ends: 1072 [2024-12-02 09:01:23,389 INFO L226 Difference]: Without dead ends: 530 [2024-12-02 09:01:23,392 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:01:23,393 INFO L435 NwaCegarLoop]: 883 mSDtfsCounter, 0 mSDsluCounter, 1761 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2644 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:23,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2644 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:01:23,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-12-02 09:01:23,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2024-12-02 09:01:23,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 416 states have (on average 1.6778846153846154) internal successors, (698), 435 states have internal predecessors, (698), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 09:01:23,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 875 transitions. [2024-12-02 09:01:23,424 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 875 transitions. Word has length 110 [2024-12-02 09:01:23,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:23,425 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 875 transitions. [2024-12-02 09:01:23,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:01:23,425 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 875 transitions. [2024-12-02 09:01:23,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 09:01:23,430 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:23,430 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:23,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 09:01:23,430 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:23,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:23,431 INFO L85 PathProgramCache]: Analyzing trace with hash 619999461, now seen corresponding path program 1 times [2024-12-02 09:01:23,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:23,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489241606] [2024-12-02 09:01:23,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:23,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:23,644 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 09:01:23,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:23,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489241606] [2024-12-02 09:01:23,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489241606] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:23,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:23,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 09:01:23,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928824238] [2024-12-02 09:01:23,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:23,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 09:01:23,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:23,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 09:01:23,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 09:01:23,647 INFO L87 Difference]: Start difference. First operand 530 states and 875 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:01:23,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:23,867 INFO L93 Difference]: Finished difference Result 1017 states and 1684 transitions. [2024-12-02 09:01:23,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 09:01:23,868 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 111 [2024-12-02 09:01:23,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:23,873 INFO L225 Difference]: With dead ends: 1017 [2024-12-02 09:01:23,873 INFO L226 Difference]: Without dead ends: 539 [2024-12-02 09:01:23,876 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:01:23,877 INFO L435 NwaCegarLoop]: 832 mSDtfsCounter, 55 mSDsluCounter, 3299 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4131 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:23,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4131 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 09:01:23,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-12-02 09:01:23,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 530. [2024-12-02 09:01:23,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 416 states have (on average 1.6682692307692308) internal successors, (694), 435 states have internal predecessors, (694), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 09:01:23,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 871 transitions. [2024-12-02 09:01:23,917 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 871 transitions. Word has length 111 [2024-12-02 09:01:23,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:23,917 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 871 transitions. [2024-12-02 09:01:23,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:01:23,918 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 871 transitions. [2024-12-02 09:01:23,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 09:01:23,921 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:23,921 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:23,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 09:01:23,922 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:23,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:23,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1666748123, now seen corresponding path program 1 times [2024-12-02 09:01:23,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:23,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18088918] [2024-12-02 09:01:23,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:23,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:24,089 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 09:01:24,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:24,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18088918] [2024-12-02 09:01:24,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18088918] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:24,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:24,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 09:01:24,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369580385] [2024-12-02 09:01:24,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:24,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 09:01:24,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:24,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 09:01:24,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 09:01:24,091 INFO L87 Difference]: Start difference. First operand 530 states and 871 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:01:24,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:24,273 INFO L93 Difference]: Finished difference Result 1017 states and 1680 transitions. [2024-12-02 09:01:24,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 09:01:24,274 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 112 [2024-12-02 09:01:24,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:24,278 INFO L225 Difference]: With dead ends: 1017 [2024-12-02 09:01:24,278 INFO L226 Difference]: Without dead ends: 539 [2024-12-02 09:01:24,281 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:01:24,281 INFO L435 NwaCegarLoop]: 832 mSDtfsCounter, 54 mSDsluCounter, 3299 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4131 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:24,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4131 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 09:01:24,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-12-02 09:01:24,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 530. [2024-12-02 09:01:24,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 416 states have (on average 1.6586538461538463) internal successors, (690), 435 states have internal predecessors, (690), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 09:01:24,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 867 transitions. [2024-12-02 09:01:24,304 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 867 transitions. Word has length 112 [2024-12-02 09:01:24,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:24,305 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 867 transitions. [2024-12-02 09:01:24,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:01:24,305 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 867 transitions. [2024-12-02 09:01:24,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 09:01:24,308 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:24,308 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:24,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 09:01:24,309 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:24,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:24,309 INFO L85 PathProgramCache]: Analyzing trace with hash 2004534784, now seen corresponding path program 1 times [2024-12-02 09:01:24,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:24,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883794047] [2024-12-02 09:01:24,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:24,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:24,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:24,456 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 09:01:24,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:24,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883794047] [2024-12-02 09:01:24,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883794047] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:24,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:24,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 09:01:24,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873623214] [2024-12-02 09:01:24,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:24,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 09:01:24,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:24,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 09:01:24,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 09:01:24,458 INFO L87 Difference]: Start difference. First operand 530 states and 867 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:01:24,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:24,624 INFO L93 Difference]: Finished difference Result 1017 states and 1676 transitions. [2024-12-02 09:01:24,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 09:01:24,624 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 113 [2024-12-02 09:01:24,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:24,629 INFO L225 Difference]: With dead ends: 1017 [2024-12-02 09:01:24,629 INFO L226 Difference]: Without dead ends: 539 [2024-12-02 09:01:24,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:01:24,632 INFO L435 NwaCegarLoop]: 831 mSDtfsCounter, 53 mSDsluCounter, 3282 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 4113 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:24,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 4113 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 09:01:24,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-12-02 09:01:24,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 530. [2024-12-02 09:01:24,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 416 states have (on average 1.6490384615384615) internal successors, (686), 435 states have internal predecessors, (686), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 09:01:24,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 863 transitions. [2024-12-02 09:01:24,655 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 863 transitions. Word has length 113 [2024-12-02 09:01:24,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:24,655 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 863 transitions. [2024-12-02 09:01:24,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:01:24,655 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 863 transitions. [2024-12-02 09:01:24,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 09:01:24,659 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:24,659 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:24,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 09:01:24,659 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:24,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:24,659 INFO L85 PathProgramCache]: Analyzing trace with hash -318662272, now seen corresponding path program 1 times [2024-12-02 09:01:24,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:24,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267439901] [2024-12-02 09:01:24,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:24,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:24,830 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 09:01:24,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:24,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267439901] [2024-12-02 09:01:24,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267439901] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:24,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:24,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 09:01:24,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67829159] [2024-12-02 09:01:24,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:24,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 09:01:24,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:24,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 09:01:24,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:01:24,832 INFO L87 Difference]: Start difference. First operand 530 states and 863 transitions. Second operand has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 09:01:24,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:24,907 INFO L93 Difference]: Finished difference Result 1008 states and 1658 transitions. [2024-12-02 09:01:24,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 09:01:24,908 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 113 [2024-12-02 09:01:24,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:24,912 INFO L225 Difference]: With dead ends: 1008 [2024-12-02 09:01:24,913 INFO L226 Difference]: Without dead ends: 509 [2024-12-02 09:01:24,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 09:01:24,915 INFO L435 NwaCegarLoop]: 852 mSDtfsCounter, 84 mSDsluCounter, 4187 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 5039 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:24,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 5039 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:01:24,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-12-02 09:01:24,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-12-02 09:01:24,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 395 states have (on average 1.650632911392405) internal successors, (652), 414 states have internal predecessors, (652), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 09:01:24,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 829 transitions. [2024-12-02 09:01:24,936 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 829 transitions. Word has length 113 [2024-12-02 09:01:24,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:24,936 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 829 transitions. [2024-12-02 09:01:24,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 09:01:24,936 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 829 transitions. [2024-12-02 09:01:24,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 09:01:24,940 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:24,940 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:24,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 09:01:24,940 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:24,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:24,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1396201888, now seen corresponding path program 1 times [2024-12-02 09:01:24,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:24,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904672096] [2024-12-02 09:01:24,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:24,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:25,083 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 09:01:25,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:25,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904672096] [2024-12-02 09:01:25,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904672096] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:25,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:25,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 09:01:25,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288181855] [2024-12-02 09:01:25,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:25,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 09:01:25,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:25,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 09:01:25,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 09:01:25,084 INFO L87 Difference]: Start difference. First operand 509 states and 829 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:01:25,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:25,160 INFO L93 Difference]: Finished difference Result 987 states and 1624 transitions. [2024-12-02 09:01:25,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 09:01:25,160 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 114 [2024-12-02 09:01:25,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:25,165 INFO L225 Difference]: With dead ends: 987 [2024-12-02 09:01:25,165 INFO L226 Difference]: Without dead ends: 509 [2024-12-02 09:01:25,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:01:25,168 INFO L435 NwaCegarLoop]: 812 mSDtfsCounter, 17 mSDsluCounter, 3239 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4051 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:25,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4051 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:01:25,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-12-02 09:01:25,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-12-02 09:01:25,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 395 states have (on average 1.6481012658227847) internal successors, (651), 414 states have internal predecessors, (651), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 09:01:25,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 828 transitions. [2024-12-02 09:01:25,188 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 828 transitions. Word has length 114 [2024-12-02 09:01:25,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:25,189 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 828 transitions. [2024-12-02 09:01:25,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:01:25,189 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 828 transitions. [2024-12-02 09:01:25,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 09:01:25,192 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:25,192 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:25,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 09:01:25,193 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:25,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:25,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1263765275, now seen corresponding path program 1 times [2024-12-02 09:01:25,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:25,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291573955] [2024-12-02 09:01:25,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:25,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:25,370 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 09:01:25,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:25,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291573955] [2024-12-02 09:01:25,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291573955] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:25,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:25,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 09:01:25,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343653261] [2024-12-02 09:01:25,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:25,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 09:01:25,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:25,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 09:01:25,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 09:01:25,372 INFO L87 Difference]: Start difference. First operand 509 states and 828 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:01:25,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:25,461 INFO L93 Difference]: Finished difference Result 987 states and 1623 transitions. [2024-12-02 09:01:25,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 09:01:25,461 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2024-12-02 09:01:25,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:25,467 INFO L225 Difference]: With dead ends: 987 [2024-12-02 09:01:25,467 INFO L226 Difference]: Without dead ends: 509 [2024-12-02 09:01:25,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:01:25,471 INFO L435 NwaCegarLoop]: 812 mSDtfsCounter, 16 mSDsluCounter, 3239 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4051 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:25,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4051 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:01:25,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-12-02 09:01:25,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-12-02 09:01:25,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 395 states have (on average 1.6455696202531647) internal successors, (650), 414 states have internal predecessors, (650), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 09:01:25,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 827 transitions. [2024-12-02 09:01:25,497 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 827 transitions. Word has length 115 [2024-12-02 09:01:25,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:25,498 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 827 transitions. [2024-12-02 09:01:25,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:01:25,498 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 827 transitions. [2024-12-02 09:01:25,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 09:01:25,502 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:25,502 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:25,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 09:01:25,502 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:25,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:25,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1040636761, now seen corresponding path program 1 times [2024-12-02 09:01:25,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:25,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985595628] [2024-12-02 09:01:25,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:25,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:25,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:25,633 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 09:01:25,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:25,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985595628] [2024-12-02 09:01:25,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985595628] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:25,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:25,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:01:25,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874671500] [2024-12-02 09:01:25,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:25,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:01:25,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:25,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:01:25,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:01:25,635 INFO L87 Difference]: Start difference. First operand 509 states and 827 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:01:25,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:25,672 INFO L93 Difference]: Finished difference Result 987 states and 1622 transitions. [2024-12-02 09:01:25,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:01:25,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2024-12-02 09:01:25,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:25,677 INFO L225 Difference]: With dead ends: 987 [2024-12-02 09:01:25,677 INFO L226 Difference]: Without dead ends: 509 [2024-12-02 09:01:25,680 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:01:25,680 INFO L435 NwaCegarLoop]: 820 mSDtfsCounter, 9 mSDsluCounter, 1634 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2454 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:25,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2454 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:01:25,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-12-02 09:01:25,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-12-02 09:01:25,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 395 states have (on average 1.6430379746835444) internal successors, (649), 414 states have internal predecessors, (649), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 09:01:25,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 826 transitions. [2024-12-02 09:01:25,701 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 826 transitions. Word has length 116 [2024-12-02 09:01:25,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:25,701 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 826 transitions. [2024-12-02 09:01:25,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:01:25,701 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 826 transitions. [2024-12-02 09:01:25,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 09:01:25,704 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:25,705 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:25,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 09:01:25,705 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:25,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:25,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1295755749, now seen corresponding path program 1 times [2024-12-02 09:01:25,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:25,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156291825] [2024-12-02 09:01:25,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:25,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:25,813 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 09:01:25,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:25,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156291825] [2024-12-02 09:01:25,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156291825] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:25,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:25,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 09:01:25,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881122490] [2024-12-02 09:01:25,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:25,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 09:01:25,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:25,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 09:01:25,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:01:25,815 INFO L87 Difference]: Start difference. First operand 509 states and 826 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:01:25,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:25,859 INFO L93 Difference]: Finished difference Result 981 states and 1610 transitions. [2024-12-02 09:01:25,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 09:01:25,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2024-12-02 09:01:25,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:25,864 INFO L225 Difference]: With dead ends: 981 [2024-12-02 09:01:25,865 INFO L226 Difference]: Without dead ends: 509 [2024-12-02 09:01:25,867 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 09:01:25,867 INFO L435 NwaCegarLoop]: 814 mSDtfsCounter, 4 mSDsluCounter, 1619 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2433 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:25,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2433 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:01:25,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-12-02 09:01:25,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-12-02 09:01:25,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 395 states have (on average 1.6405063291139241) internal successors, (648), 414 states have internal predecessors, (648), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 09:01:25,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 825 transitions. [2024-12-02 09:01:25,887 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 825 transitions. Word has length 116 [2024-12-02 09:01:25,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:25,887 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 825 transitions. [2024-12-02 09:01:25,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 09:01:25,887 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 825 transitions. [2024-12-02 09:01:25,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 09:01:25,890 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:25,890 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:25,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 09:01:25,891 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:25,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:25,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1553257114, now seen corresponding path program 1 times [2024-12-02 09:01:25,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:25,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602155138] [2024-12-02 09:01:25,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:25,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:26,031 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 09:01:26,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:26,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602155138] [2024-12-02 09:01:26,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602155138] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:01:26,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771466446] [2024-12-02 09:01:26,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:26,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:01:26,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:01:26,034 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:01:26,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 09:01:26,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:26,388 INFO L256 TraceCheckSpWp]: Trace formula consists of 1454 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 09:01:26,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:01:26,428 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 09:01:26,428 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:01:26,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771466446] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:26,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 09:01:26,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-12-02 09:01:26,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607365633] [2024-12-02 09:01:26,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:26,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:01:26,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:26,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:01:26,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:01:26,430 INFO L87 Difference]: Start difference. First operand 509 states and 825 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 09:01:26,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:26,474 INFO L93 Difference]: Finished difference Result 1428 states and 2374 transitions. [2024-12-02 09:01:26,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:01:26,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 117 [2024-12-02 09:01:26,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:26,480 INFO L225 Difference]: With dead ends: 1428 [2024-12-02 09:01:26,480 INFO L226 Difference]: Without dead ends: 964 [2024-12-02 09:01:26,482 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:01:26,482 INFO L435 NwaCegarLoop]: 940 mSDtfsCounter, 810 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:26,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 1705 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:01:26,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2024-12-02 09:01:26,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 962. [2024-12-02 09:01:26,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 748 states have (on average 1.664438502673797) internal successors, (1245), 781 states have internal predecessors, (1245), 172 states have call successors, (172), 41 states have call predecessors, (172), 41 states have return successors, (177), 165 states have call predecessors, (177), 167 states have call successors, (177) [2024-12-02 09:01:26,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1594 transitions. [2024-12-02 09:01:26,516 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1594 transitions. Word has length 117 [2024-12-02 09:01:26,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:26,516 INFO L471 AbstractCegarLoop]: Abstraction has 962 states and 1594 transitions. [2024-12-02 09:01:26,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 09:01:26,516 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1594 transitions. [2024-12-02 09:01:26,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 09:01:26,518 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:26,518 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:26,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 09:01:26,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-12-02 09:01:26,719 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:26,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:26,719 INFO L85 PathProgramCache]: Analyzing trace with hash -906457514, now seen corresponding path program 1 times [2024-12-02 09:01:26,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:26,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626661412] [2024-12-02 09:01:26,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:26,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:26,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:26,853 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 09:01:26,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:26,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626661412] [2024-12-02 09:01:26,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626661412] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:01:26,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880865717] [2024-12-02 09:01:26,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:26,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:01:26,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:01:26,856 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:01:26,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 09:01:27,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:27,193 INFO L256 TraceCheckSpWp]: Trace formula consists of 1456 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 09:01:27,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:01:27,229 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 09:01:27,229 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:01:27,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [880865717] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:27,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 09:01:27,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-12-02 09:01:27,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904870590] [2024-12-02 09:01:27,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:27,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:01:27,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:27,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:01:27,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:01:27,230 INFO L87 Difference]: Start difference. First operand 962 states and 1594 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 09:01:27,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:27,317 INFO L93 Difference]: Finished difference Result 2789 states and 4699 transitions. [2024-12-02 09:01:27,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:01:27,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 118 [2024-12-02 09:01:27,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:27,334 INFO L225 Difference]: With dead ends: 2789 [2024-12-02 09:01:27,334 INFO L226 Difference]: Without dead ends: 1872 [2024-12-02 09:01:27,340 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:01:27,341 INFO L435 NwaCegarLoop]: 899 mSDtfsCounter, 809 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:27,341 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 1667 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:01:27,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2024-12-02 09:01:27,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1869. [2024-12-02 09:01:27,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1869 states, 1455 states have (on average 1.6769759450171822) internal successors, (2440), 1516 states have internal predecessors, (2440), 334 states have call successors, (334), 77 states have call predecessors, (334), 79 states have return successors, (371), 327 states have call predecessors, (371), 329 states have call successors, (371) [2024-12-02 09:01:27,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1869 states to 1869 states and 3145 transitions. [2024-12-02 09:01:27,444 INFO L78 Accepts]: Start accepts. Automaton has 1869 states and 3145 transitions. Word has length 118 [2024-12-02 09:01:27,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:27,444 INFO L471 AbstractCegarLoop]: Abstraction has 1869 states and 3145 transitions. [2024-12-02 09:01:27,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 09:01:27,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1869 states and 3145 transitions. [2024-12-02 09:01:27,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 09:01:27,448 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:27,449 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:27,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 09:01:27,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-12-02 09:01:27,649 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:27,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:27,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1964464808, now seen corresponding path program 1 times [2024-12-02 09:01:27,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:27,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939772874] [2024-12-02 09:01:27,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:27,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:27,801 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 09:01:27,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:27,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939772874] [2024-12-02 09:01:27,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939772874] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:01:27,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140103168] [2024-12-02 09:01:27,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:27,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:01:27,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:01:27,804 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:01:27,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 09:01:28,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:28,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 1458 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 09:01:28,166 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:01:28,199 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 09:01:28,199 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:01:28,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140103168] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:28,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 09:01:28,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-12-02 09:01:28,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637210879] [2024-12-02 09:01:28,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:28,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:01:28,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:28,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:01:28,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:01:28,201 INFO L87 Difference]: Start difference. First operand 1869 states and 3145 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 09:01:28,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:28,342 INFO L93 Difference]: Finished difference Result 5512 states and 9403 transitions. [2024-12-02 09:01:28,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:01:28,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 119 [2024-12-02 09:01:28,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:28,374 INFO L225 Difference]: With dead ends: 5512 [2024-12-02 09:01:28,374 INFO L226 Difference]: Without dead ends: 3688 [2024-12-02 09:01:28,386 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:01:28,387 INFO L435 NwaCegarLoop]: 889 mSDtfsCounter, 807 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:28,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 1660 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:01:28,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3688 states. [2024-12-02 09:01:28,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3688 to 3684. [2024-12-02 09:01:28,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3684 states, 2870 states have (on average 1.6829268292682926) internal successors, (4830), 2987 states have internal predecessors, (4830), 658 states have call successors, (658), 149 states have call predecessors, (658), 155 states have return successors, (795), 651 states have call predecessors, (795), 653 states have call successors, (795) [2024-12-02 09:01:28,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3684 states to 3684 states and 6283 transitions. [2024-12-02 09:01:28,580 INFO L78 Accepts]: Start accepts. Automaton has 3684 states and 6283 transitions. Word has length 119 [2024-12-02 09:01:28,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:28,580 INFO L471 AbstractCegarLoop]: Abstraction has 3684 states and 6283 transitions. [2024-12-02 09:01:28,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 09:01:28,580 INFO L276 IsEmpty]: Start isEmpty. Operand 3684 states and 6283 transitions. [2024-12-02 09:01:28,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 09:01:28,584 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:28,584 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:28,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 09:01:28,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-02 09:01:28,785 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:28,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:28,785 INFO L85 PathProgramCache]: Analyzing trace with hash 768747480, now seen corresponding path program 1 times [2024-12-02 09:01:28,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:28,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299728277] [2024-12-02 09:01:28,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:28,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:28,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:28,947 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 09:01:28,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:28,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299728277] [2024-12-02 09:01:28,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299728277] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:01:28,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365275437] [2024-12-02 09:01:28,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:28,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:01:28,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:01:28,949 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:01:28,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 09:01:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:29,253 INFO L256 TraceCheckSpWp]: Trace formula consists of 1460 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 09:01:29,257 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:01:29,290 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 09:01:29,290 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:01:29,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365275437] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:29,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 09:01:29,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-12-02 09:01:29,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092707527] [2024-12-02 09:01:29,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:29,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:01:29,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:29,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:01:29,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:01:29,292 INFO L87 Difference]: Start difference. First operand 3684 states and 6283 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 09:01:29,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:29,524 INFO L93 Difference]: Finished difference Result 10959 states and 18988 transitions. [2024-12-02 09:01:29,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:01:29,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 120 [2024-12-02 09:01:29,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:29,599 INFO L225 Difference]: With dead ends: 10959 [2024-12-02 09:01:29,599 INFO L226 Difference]: Without dead ends: 7320 [2024-12-02 09:01:29,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:01:29,622 INFO L435 NwaCegarLoop]: 915 mSDtfsCounter, 807 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:29,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 1687 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:01:29,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7320 states. [2024-12-02 09:01:29,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7320 to 7315. [2024-12-02 09:01:29,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7315 states, 5701 states have (on average 1.685318365199088) internal successors, (9608), 5930 states have internal predecessors, (9608), 1306 states have call successors, (1306), 293 states have call predecessors, (1306), 307 states have return successors, (1763), 1299 states have call predecessors, (1763), 1301 states have call successors, (1763) [2024-12-02 09:01:29,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7315 states to 7315 states and 12677 transitions. [2024-12-02 09:01:29,994 INFO L78 Accepts]: Start accepts. Automaton has 7315 states and 12677 transitions. Word has length 120 [2024-12-02 09:01:29,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:29,994 INFO L471 AbstractCegarLoop]: Abstraction has 7315 states and 12677 transitions. [2024-12-02 09:01:29,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 09:01:29,995 INFO L276 IsEmpty]: Start isEmpty. Operand 7315 states and 12677 transitions. [2024-12-02 09:01:29,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 09:01:29,999 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:29,999 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:30,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 09:01:30,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:01:30,200 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:30,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:30,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1938747414, now seen corresponding path program 1 times [2024-12-02 09:01:30,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:30,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932454611] [2024-12-02 09:01:30,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:30,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:30,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:30,291 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 09:01:30,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:30,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932454611] [2024-12-02 09:01:30,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932454611] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:01:30,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635497556] [2024-12-02 09:01:30,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:30,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:01:30,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:01:30,293 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:01:30,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 09:01:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:30,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 1462 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 09:01:30,608 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:01:30,662 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 09:01:30,662 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 09:01:30,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635497556] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:30,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 09:01:30,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-12-02 09:01:30,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733637378] [2024-12-02 09:01:30,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:30,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 09:01:30,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:30,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 09:01:30,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:01:30,664 INFO L87 Difference]: Start difference. First operand 7315 states and 12677 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 09:01:31,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:31,014 INFO L93 Difference]: Finished difference Result 21854 states and 38796 transitions. [2024-12-02 09:01:31,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 09:01:31,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 121 [2024-12-02 09:01:31,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:31,114 INFO L225 Difference]: With dead ends: 21854 [2024-12-02 09:01:31,114 INFO L226 Difference]: Without dead ends: 14576 [2024-12-02 09:01:31,186 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:01:31,187 INFO L435 NwaCegarLoop]: 935 mSDtfsCounter, 804 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:31,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 1710 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:01:31,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14576 states. [2024-12-02 09:01:31,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14576 to 14570. [2024-12-02 09:01:31,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14570 states, 11357 states have (on average 1.6856564233512372) internal successors, (19144), 11810 states have internal predecessors, (19144), 2602 states have call successors, (2602), 581 states have call predecessors, (2602), 610 states have return successors, (4130), 2594 states have call predecessors, (4130), 2597 states have call successors, (4130) [2024-12-02 09:01:31,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14570 states to 14570 states and 25876 transitions. [2024-12-02 09:01:31,704 INFO L78 Accepts]: Start accepts. Automaton has 14570 states and 25876 transitions. Word has length 121 [2024-12-02 09:01:31,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:31,705 INFO L471 AbstractCegarLoop]: Abstraction has 14570 states and 25876 transitions. [2024-12-02 09:01:31,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 09:01:31,705 INFO L276 IsEmpty]: Start isEmpty. Operand 14570 states and 25876 transitions. [2024-12-02 09:01:31,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-12-02 09:01:31,727 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:31,727 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:31,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 09:01:31,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:01:31,927 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:31,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:31,928 INFO L85 PathProgramCache]: Analyzing trace with hash 2104333976, now seen corresponding path program 1 times [2024-12-02 09:01:31,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:31,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733648625] [2024-12-02 09:01:31,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:31,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:32,093 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-12-02 09:01:32,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:32,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733648625] [2024-12-02 09:01:32,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733648625] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:32,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:32,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 09:01:32,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013501977] [2024-12-02 09:01:32,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:32,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 09:01:32,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:32,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 09:01:32,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 09:01:32,094 INFO L87 Difference]: Start difference. First operand 14570 states and 25876 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-12-02 09:01:32,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:32,984 INFO L93 Difference]: Finished difference Result 29223 states and 53527 transitions. [2024-12-02 09:01:32,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 09:01:32,985 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 182 [2024-12-02 09:01:32,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:33,131 INFO L225 Difference]: With dead ends: 29223 [2024-12-02 09:01:33,132 INFO L226 Difference]: Without dead ends: 14698 [2024-12-02 09:01:33,202 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 09:01:33,203 INFO L435 NwaCegarLoop]: 807 mSDtfsCounter, 819 mSDsluCounter, 2212 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 3019 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:33,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 3019 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 09:01:33,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14698 states. [2024-12-02 09:01:33,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14698 to 14698. [2024-12-02 09:01:33,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14698 states, 11453 states have (on average 1.6799091940976163) internal successors, (19240), 11906 states have internal predecessors, (19240), 2602 states have call successors, (2602), 613 states have call predecessors, (2602), 642 states have return successors, (4162), 2594 states have call predecessors, (4162), 2597 states have call successors, (4162) [2024-12-02 09:01:33,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14698 states to 14698 states and 26004 transitions. [2024-12-02 09:01:33,877 INFO L78 Accepts]: Start accepts. Automaton has 14698 states and 26004 transitions. Word has length 182 [2024-12-02 09:01:33,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:33,877 INFO L471 AbstractCegarLoop]: Abstraction has 14698 states and 26004 transitions. [2024-12-02 09:01:33,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-12-02 09:01:33,877 INFO L276 IsEmpty]: Start isEmpty. Operand 14698 states and 26004 transitions. [2024-12-02 09:01:33,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-12-02 09:01:33,891 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:33,892 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:33,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 09:01:33,892 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:33,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:33,892 INFO L85 PathProgramCache]: Analyzing trace with hash 755683207, now seen corresponding path program 1 times [2024-12-02 09:01:33,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:33,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778073211] [2024-12-02 09:01:33,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:33,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:34,080 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-12-02 09:01:34,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:34,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778073211] [2024-12-02 09:01:34,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778073211] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:34,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:34,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 09:01:34,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713182948] [2024-12-02 09:01:34,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:34,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 09:01:34,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:34,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 09:01:34,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 09:01:34,082 INFO L87 Difference]: Start difference. First operand 14698 states and 26004 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-12-02 09:01:34,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:34,830 INFO L93 Difference]: Finished difference Result 29511 states and 53751 transitions. [2024-12-02 09:01:34,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 09:01:34,831 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 183 [2024-12-02 09:01:34,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:34,962 INFO L225 Difference]: With dead ends: 29511 [2024-12-02 09:01:34,962 INFO L226 Difference]: Without dead ends: 14858 [2024-12-02 09:01:35,110 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 09:01:35,111 INFO L435 NwaCegarLoop]: 809 mSDtfsCounter, 818 mSDsluCounter, 2216 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:35,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 3025 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 09:01:35,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14858 states. [2024-12-02 09:01:35,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14858 to 14858. [2024-12-02 09:01:35,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14858 states, 11581 states have (on average 1.672394439167602) internal successors, (19368), 12034 states have internal predecessors, (19368), 2602 states have call successors, (2602), 645 states have call predecessors, (2602), 674 states have return successors, (4194), 2594 states have call predecessors, (4194), 2597 states have call successors, (4194) [2024-12-02 09:01:35,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14858 states to 14858 states and 26164 transitions. [2024-12-02 09:01:35,792 INFO L78 Accepts]: Start accepts. Automaton has 14858 states and 26164 transitions. Word has length 183 [2024-12-02 09:01:35,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:35,792 INFO L471 AbstractCegarLoop]: Abstraction has 14858 states and 26164 transitions. [2024-12-02 09:01:35,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-12-02 09:01:35,792 INFO L276 IsEmpty]: Start isEmpty. Operand 14858 states and 26164 transitions. [2024-12-02 09:01:35,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-12-02 09:01:35,810 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:35,810 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:35,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 09:01:35,811 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:35,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:35,811 INFO L85 PathProgramCache]: Analyzing trace with hash 400122236, now seen corresponding path program 1 times [2024-12-02 09:01:35,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:35,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428978362] [2024-12-02 09:01:35,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:35,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:36,002 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-12-02 09:01:36,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:36,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428978362] [2024-12-02 09:01:36,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428978362] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:36,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:36,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 09:01:36,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509052486] [2024-12-02 09:01:36,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:36,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 09:01:36,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:36,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 09:01:36,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 09:01:36,003 INFO L87 Difference]: Start difference. First operand 14858 states and 26164 transitions. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-12-02 09:01:36,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:36,799 INFO L93 Difference]: Finished difference Result 29863 states and 54039 transitions. [2024-12-02 09:01:36,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 09:01:36,799 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 184 [2024-12-02 09:01:36,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:36,901 INFO L225 Difference]: With dead ends: 29863 [2024-12-02 09:01:36,901 INFO L226 Difference]: Without dead ends: 15050 [2024-12-02 09:01:37,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 09:01:37,022 INFO L435 NwaCegarLoop]: 809 mSDtfsCounter, 818 mSDsluCounter, 2216 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:37,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 3025 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 09:01:37,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15050 states. [2024-12-02 09:01:37,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15050 to 15050. [2024-12-02 09:01:37,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15050 states, 11741 states have (on average 1.663231411293757) internal successors, (19528), 12194 states have internal predecessors, (19528), 2602 states have call successors, (2602), 677 states have call predecessors, (2602), 706 states have return successors, (4226), 2594 states have call predecessors, (4226), 2597 states have call successors, (4226) [2024-12-02 09:01:37,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15050 states to 15050 states and 26356 transitions. [2024-12-02 09:01:37,702 INFO L78 Accepts]: Start accepts. Automaton has 15050 states and 26356 transitions. Word has length 184 [2024-12-02 09:01:37,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:37,703 INFO L471 AbstractCegarLoop]: Abstraction has 15050 states and 26356 transitions. [2024-12-02 09:01:37,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-12-02 09:01:37,703 INFO L276 IsEmpty]: Start isEmpty. Operand 15050 states and 26356 transitions. [2024-12-02 09:01:37,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-12-02 09:01:37,719 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:37,719 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:37,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 09:01:37,720 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:37,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:37,720 INFO L85 PathProgramCache]: Analyzing trace with hash 765573931, now seen corresponding path program 1 times [2024-12-02 09:01:37,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:37,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335361527] [2024-12-02 09:01:37,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:37,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:37,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:37,876 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-12-02 09:01:37,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:37,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335361527] [2024-12-02 09:01:37,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335361527] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:37,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:37,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 09:01:37,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567178190] [2024-12-02 09:01:37,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:37,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 09:01:37,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:37,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 09:01:37,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 09:01:37,879 INFO L87 Difference]: Start difference. First operand 15050 states and 26356 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-12-02 09:01:38,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:38,776 INFO L93 Difference]: Finished difference Result 30279 states and 54391 transitions. [2024-12-02 09:01:38,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 09:01:38,776 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 185 [2024-12-02 09:01:38,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:38,876 INFO L225 Difference]: With dead ends: 30279 [2024-12-02 09:01:38,877 INFO L226 Difference]: Without dead ends: 15274 [2024-12-02 09:01:39,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 09:01:39,006 INFO L435 NwaCegarLoop]: 809 mSDtfsCounter, 818 mSDsluCounter, 2216 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:39,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 3025 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 09:01:39,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15274 states. [2024-12-02 09:01:39,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15274 to 15274. [2024-12-02 09:01:39,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15274 states, 11933 states have (on average 1.6525601273778596) internal successors, (19720), 12386 states have internal predecessors, (19720), 2602 states have call successors, (2602), 709 states have call predecessors, (2602), 738 states have return successors, (4258), 2594 states have call predecessors, (4258), 2597 states have call successors, (4258) [2024-12-02 09:01:39,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15274 states to 15274 states and 26580 transitions. [2024-12-02 09:01:39,411 INFO L78 Accepts]: Start accepts. Automaton has 15274 states and 26580 transitions. Word has length 185 [2024-12-02 09:01:39,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:39,411 INFO L471 AbstractCegarLoop]: Abstraction has 15274 states and 26580 transitions. [2024-12-02 09:01:39,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-12-02 09:01:39,412 INFO L276 IsEmpty]: Start isEmpty. Operand 15274 states and 26580 transitions. [2024-12-02 09:01:39,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-12-02 09:01:39,422 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:39,422 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:39,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 09:01:39,422 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:39,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:39,423 INFO L85 PathProgramCache]: Analyzing trace with hash 2007581792, now seen corresponding path program 1 times [2024-12-02 09:01:39,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:39,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971405173] [2024-12-02 09:01:39,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:39,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:39,670 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-12-02 09:01:39,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:39,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971405173] [2024-12-02 09:01:39,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971405173] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:39,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:39,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 09:01:39,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730665784] [2024-12-02 09:01:39,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:39,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 09:01:39,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:39,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 09:01:39,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 09:01:39,671 INFO L87 Difference]: Start difference. First operand 15274 states and 26580 transitions. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 8 states have internal predecessors, (116), 5 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 4 states have call successors, (22) [2024-12-02 09:01:45,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:45,733 INFO L93 Difference]: Finished difference Result 68262 states and 130881 transitions. [2024-12-02 09:01:45,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 09:01:45,734 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 8 states have internal predecessors, (116), 5 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 4 states have call successors, (22) Word has length 186 [2024-12-02 09:01:45,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:46,109 INFO L225 Difference]: With dead ends: 68262 [2024-12-02 09:01:46,109 INFO L226 Difference]: Without dead ends: 53033 [2024-12-02 09:01:46,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2024-12-02 09:01:46,343 INFO L435 NwaCegarLoop]: 870 mSDtfsCounter, 2506 mSDsluCounter, 4387 mSDsCounter, 0 mSdLazyCounter, 10040 mSolverCounterSat, 614 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2615 SdHoareTripleChecker+Valid, 5257 SdHoareTripleChecker+Invalid, 10654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 614 IncrementalHoareTripleChecker+Valid, 10040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:46,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2615 Valid, 5257 Invalid, 10654 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [614 Valid, 10040 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-12-02 09:01:46,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53033 states. [2024-12-02 09:01:48,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53033 to 51728. [2024-12-02 09:01:48,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51728 states, 39296 states have (on average 1.6344157166123778) internal successors, (64226), 41029 states have internal predecessors, (64226), 9932 states have call successors, (9932), 2118 states have call predecessors, (9932), 2499 states have return successors, (23042), 10148 states have call predecessors, (23042), 9927 states have call successors, (23042) [2024-12-02 09:01:48,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51728 states to 51728 states and 97200 transitions. [2024-12-02 09:01:48,698 INFO L78 Accepts]: Start accepts. Automaton has 51728 states and 97200 transitions. Word has length 186 [2024-12-02 09:01:48,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:48,699 INFO L471 AbstractCegarLoop]: Abstraction has 51728 states and 97200 transitions. [2024-12-02 09:01:48,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 8 states have internal predecessors, (116), 5 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 4 states have call successors, (22) [2024-12-02 09:01:48,699 INFO L276 IsEmpty]: Start isEmpty. Operand 51728 states and 97200 transitions. [2024-12-02 09:01:48,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-12-02 09:01:48,762 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:48,762 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:48,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 09:01:48,762 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:48,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:48,762 INFO L85 PathProgramCache]: Analyzing trace with hash -5398507, now seen corresponding path program 1 times [2024-12-02 09:01:48,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:48,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689398802] [2024-12-02 09:01:48,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:48,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:49,090 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-12-02 09:01:49,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:49,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689398802] [2024-12-02 09:01:49,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689398802] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:49,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:49,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 09:01:49,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40279304] [2024-12-02 09:01:49,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:49,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 09:01:49,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:49,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 09:01:49,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 09:01:49,092 INFO L87 Difference]: Start difference. First operand 51728 states and 97200 transitions. Second operand has 8 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-12-02 09:01:49,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:49,994 INFO L93 Difference]: Finished difference Result 66805 states and 123451 transitions. [2024-12-02 09:01:49,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 09:01:49,994 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 189 [2024-12-02 09:01:49,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:50,111 INFO L225 Difference]: With dead ends: 66805 [2024-12-02 09:01:50,111 INFO L226 Difference]: Without dead ends: 15111 [2024-12-02 09:01:50,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 09:01:50,352 INFO L435 NwaCegarLoop]: 805 mSDtfsCounter, 7 mSDsluCounter, 4808 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5613 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:50,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5613 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:01:50,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15111 states. [2024-12-02 09:01:50,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15111 to 15111. [2024-12-02 09:01:50,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15111 states, 11834 states have (on average 1.652273111374007) internal successors, (19553), 12287 states have internal predecessors, (19553), 2538 states have call successors, (2538), 709 states have call predecessors, (2538), 738 states have return successors, (4194), 2530 states have call predecessors, (4194), 2533 states have call successors, (4194) [2024-12-02 09:01:50,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15111 states to 15111 states and 26285 transitions. [2024-12-02 09:01:51,016 INFO L78 Accepts]: Start accepts. Automaton has 15111 states and 26285 transitions. Word has length 189 [2024-12-02 09:01:51,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:51,016 INFO L471 AbstractCegarLoop]: Abstraction has 15111 states and 26285 transitions. [2024-12-02 09:01:51,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-12-02 09:01:51,017 INFO L276 IsEmpty]: Start isEmpty. Operand 15111 states and 26285 transitions. [2024-12-02 09:01:51,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-12-02 09:01:51,026 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:51,026 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:51,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 09:01:51,026 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:51,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:51,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1209443469, now seen corresponding path program 1 times [2024-12-02 09:01:51,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:51,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188320520] [2024-12-02 09:01:51,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:51,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:51,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:51,225 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-12-02 09:01:51,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:51,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188320520] [2024-12-02 09:01:51,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188320520] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:51,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:51,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 09:01:51,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923988843] [2024-12-02 09:01:51,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:51,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 09:01:51,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:51,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 09:01:51,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 09:01:51,227 INFO L87 Difference]: Start difference. First operand 15111 states and 26285 transitions. Second operand has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 8 states have internal predecessors, (121), 5 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) [2024-12-02 09:01:53,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:53,387 INFO L93 Difference]: Finished difference Result 30308 states and 53872 transitions. [2024-12-02 09:01:53,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 09:01:53,387 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 8 states have internal predecessors, (121), 5 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) Word has length 192 [2024-12-02 09:01:53,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:53,499 INFO L225 Difference]: With dead ends: 30308 [2024-12-02 09:01:53,500 INFO L226 Difference]: Without dead ends: 15239 [2024-12-02 09:01:53,572 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-12-02 09:01:53,572 INFO L435 NwaCegarLoop]: 345 mSDtfsCounter, 1236 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 3177 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 1719 SdHoareTripleChecker+Invalid, 3512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 3177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:53,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1236 Valid, 1719 Invalid, 3512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 3177 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 09:01:53,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15239 states. [2024-12-02 09:01:54,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15239 to 15239. [2024-12-02 09:01:54,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15239 states, 11930 states have (on average 1.647024308466052) internal successors, (19649), 12383 states have internal predecessors, (19649), 2538 states have call successors, (2538), 709 states have call predecessors, (2538), 770 states have return successors, (4354), 2562 states have call predecessors, (4354), 2533 states have call successors, (4354) [2024-12-02 09:01:54,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15239 states to 15239 states and 26541 transitions. [2024-12-02 09:01:54,529 INFO L78 Accepts]: Start accepts. Automaton has 15239 states and 26541 transitions. Word has length 192 [2024-12-02 09:01:54,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:54,530 INFO L471 AbstractCegarLoop]: Abstraction has 15239 states and 26541 transitions. [2024-12-02 09:01:54,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 8 states have internal predecessors, (121), 5 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) [2024-12-02 09:01:54,530 INFO L276 IsEmpty]: Start isEmpty. Operand 15239 states and 26541 transitions. [2024-12-02 09:01:54,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-12-02 09:01:54,544 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:54,545 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:01:54,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 09:01:54,545 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:54,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:54,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1054640134, now seen corresponding path program 1 times [2024-12-02 09:01:54,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:54,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260588270] [2024-12-02 09:01:54,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:54,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:54,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:54,765 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-12-02 09:01:54,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:54,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260588270] [2024-12-02 09:01:54,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260588270] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:54,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:54,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 09:01:54,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286669212] [2024-12-02 09:01:54,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:54,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 09:01:54,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:54,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 09:01:54,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 09:01:54,768 INFO L87 Difference]: Start difference. First operand 15239 states and 26541 transitions. Second operand has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 5 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) [2024-12-02 09:01:59,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:59,387 INFO L93 Difference]: Finished difference Result 59903 states and 108730 transitions. [2024-12-02 09:01:59,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 09:01:59,388 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 5 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) Word has length 193 [2024-12-02 09:01:59,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:59,677 INFO L225 Difference]: With dead ends: 59903 [2024-12-02 09:01:59,677 INFO L226 Difference]: Without dead ends: 44706 [2024-12-02 09:01:59,780 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-12-02 09:01:59,780 INFO L435 NwaCegarLoop]: 491 mSDtfsCounter, 3302 mSDsluCounter, 1710 mSDsCounter, 0 mSdLazyCounter, 4786 mSolverCounterSat, 891 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3372 SdHoareTripleChecker+Valid, 2201 SdHoareTripleChecker+Invalid, 5677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 891 IncrementalHoareTripleChecker+Valid, 4786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:59,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3372 Valid, 2201 Invalid, 5677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [891 Valid, 4786 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-12-02 09:01:59,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44706 states. [2024-12-02 09:02:01,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44706 to 44302. [2024-12-02 09:02:01,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44302 states, 34596 states have (on average 1.6161694993640883) internal successors, (55913), 35944 states have internal predecessors, (55913), 7400 states have call successors, (7400), 2213 states have call predecessors, (7400), 2305 states have return successors, (14944), 7297 states have call predecessors, (14944), 7395 states have call successors, (14944) [2024-12-02 09:02:01,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44302 states to 44302 states and 78257 transitions. [2024-12-02 09:02:01,588 INFO L78 Accepts]: Start accepts. Automaton has 44302 states and 78257 transitions. Word has length 193 [2024-12-02 09:02:01,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:01,588 INFO L471 AbstractCegarLoop]: Abstraction has 44302 states and 78257 transitions. [2024-12-02 09:02:01,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 5 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) [2024-12-02 09:02:01,589 INFO L276 IsEmpty]: Start isEmpty. Operand 44302 states and 78257 transitions. [2024-12-02 09:02:01,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-12-02 09:02:01,597 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:01,597 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:02:01,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 09:02:01,597 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:02:01,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:01,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1758224546, now seen corresponding path program 1 times [2024-12-02 09:02:01,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:02:01,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095292158] [2024-12-02 09:02:01,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:01,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:01,749 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-12-02 09:02:01,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:02:01,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095292158] [2024-12-02 09:02:01,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095292158] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:02:01,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:02:01,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 09:02:01,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993329235] [2024-12-02 09:02:01,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:02:01,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 09:02:01,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:02:01,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 09:02:01,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 09:02:01,750 INFO L87 Difference]: Start difference. First operand 44302 states and 78257 transitions. Second operand has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) [2024-12-02 09:02:11,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:11,519 INFO L93 Difference]: Finished difference Result 160723 states and 340302 transitions. [2024-12-02 09:02:11,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 09:02:11,520 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) Word has length 195 [2024-12-02 09:02:11,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:12,756 INFO L225 Difference]: With dead ends: 160723 [2024-12-02 09:02:12,757 INFO L226 Difference]: Without dead ends: 116463 [2024-12-02 09:02:13,283 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-12-02 09:02:13,284 INFO L435 NwaCegarLoop]: 811 mSDtfsCounter, 3150 mSDsluCounter, 2376 mSDsCounter, 0 mSdLazyCounter, 6006 mSolverCounterSat, 920 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3184 SdHoareTripleChecker+Valid, 3187 SdHoareTripleChecker+Invalid, 6926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 920 IncrementalHoareTripleChecker+Valid, 6006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:02:13,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3184 Valid, 3187 Invalid, 6926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [920 Valid, 6006 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-12-02 09:02:13,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116463 states. [2024-12-02 09:02:19,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116463 to 104244. [2024-12-02 09:02:19,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104244 states, 77965 states have (on average 1.594112742897454) internal successors, (124285), 82385 states have internal predecessors, (124285), 21318 states have call successors, (21318), 4421 states have call predecessors, (21318), 4960 states have return successors, (51757), 21279 states have call predecessors, (51757), 21313 states have call successors, (51757) [2024-12-02 09:02:20,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104244 states to 104244 states and 197360 transitions. [2024-12-02 09:02:20,914 INFO L78 Accepts]: Start accepts. Automaton has 104244 states and 197360 transitions. Word has length 195 [2024-12-02 09:02:20,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:20,915 INFO L471 AbstractCegarLoop]: Abstraction has 104244 states and 197360 transitions. [2024-12-02 09:02:20,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) [2024-12-02 09:02:20,915 INFO L276 IsEmpty]: Start isEmpty. Operand 104244 states and 197360 transitions. [2024-12-02 09:02:21,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-12-02 09:02:21,247 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:21,247 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:02:21,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 09:02:21,248 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:02:21,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:21,248 INFO L85 PathProgramCache]: Analyzing trace with hash 35960799, now seen corresponding path program 1 times [2024-12-02 09:02:21,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:02:21,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511403262] [2024-12-02 09:02:21,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:21,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:21,396 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-12-02 09:02:21,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:02:21,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511403262] [2024-12-02 09:02:21,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511403262] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:02:21,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:02:21,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 09:02:21,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316296675] [2024-12-02 09:02:21,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:02:21,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 09:02:21,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:02:21,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 09:02:21,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 09:02:21,397 INFO L87 Difference]: Start difference. First operand 104244 states and 197360 transitions. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2024-12-02 09:02:27,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:27,319 INFO L93 Difference]: Finished difference Result 209405 states and 412276 transitions. [2024-12-02 09:02:27,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 09:02:27,319 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 195 [2024-12-02 09:02:27,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:28,047 INFO L225 Difference]: With dead ends: 209405 [2024-12-02 09:02:28,047 INFO L226 Difference]: Without dead ends: 105204 [2024-12-02 09:02:28,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 09:02:28,670 INFO L435 NwaCegarLoop]: 806 mSDtfsCounter, 0 mSDsluCounter, 3217 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4023 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:02:28,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4023 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 09:02:28,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105204 states. [2024-12-02 09:02:34,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105204 to 105204. [2024-12-02 09:02:34,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105204 states, 78733 states have (on average 1.5883174780587554) internal successors, (125053), 83153 states have internal predecessors, (125053), 21318 states have call successors, (21318), 4421 states have call predecessors, (21318), 5152 states have return successors, (52013), 21471 states have call predecessors, (52013), 21313 states have call successors, (52013) [2024-12-02 09:02:35,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105204 states to 105204 states and 198384 transitions. [2024-12-02 09:02:35,657 INFO L78 Accepts]: Start accepts. Automaton has 105204 states and 198384 transitions. Word has length 195 [2024-12-02 09:02:35,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:02:35,657 INFO L471 AbstractCegarLoop]: Abstraction has 105204 states and 198384 transitions. [2024-12-02 09:02:35,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2024-12-02 09:02:35,658 INFO L276 IsEmpty]: Start isEmpty. Operand 105204 states and 198384 transitions. [2024-12-02 09:02:35,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-12-02 09:02:35,673 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:02:35,674 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:02:35,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 09:02:35,674 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:02:35,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:35,674 INFO L85 PathProgramCache]: Analyzing trace with hash 76644154, now seen corresponding path program 1 times [2024-12-02 09:02:35,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:02:35,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688724160] [2024-12-02 09:02:35,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:35,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:35,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:35,824 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-12-02 09:02:35,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:02:35,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688724160] [2024-12-02 09:02:35,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688724160] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:02:35,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:02:35,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 09:02:35,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924065878] [2024-12-02 09:02:35,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:02:35,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 09:02:35,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:02:35,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 09:02:35,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:02:35,826 INFO L87 Difference]: Start difference. First operand 105204 states and 198384 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) [2024-12-02 09:02:47,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:47,943 INFO L93 Difference]: Finished difference Result 284959 states and 582828 transitions. [2024-12-02 09:02:47,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 09:02:47,944 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) Word has length 196 [2024-12-02 09:02:47,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:02:49,778 INFO L225 Difference]: With dead ends: 284959 [2024-12-02 09:02:49,779 INFO L226 Difference]: Without dead ends: 179543 [2024-12-02 09:02:50,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-12-02 09:02:50,841 INFO L435 NwaCegarLoop]: 492 mSDtfsCounter, 2854 mSDsluCounter, 1363 mSDsCounter, 0 mSdLazyCounter, 4608 mSolverCounterSat, 732 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2932 SdHoareTripleChecker+Valid, 1855 SdHoareTripleChecker+Invalid, 5340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 732 IncrementalHoareTripleChecker+Valid, 4608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:02:50,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2932 Valid, 1855 Invalid, 5340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [732 Valid, 4608 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 09:02:50,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179543 states. [2024-12-02 09:03:00,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179543 to 178591. [2024-12-02 09:03:00,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178591 states, 134284 states have (on average 1.5675732030621667) internal successors, (210500), 141328 states have internal predecessors, (210500), 34574 states have call successors, (34574), 8648 states have call predecessors, (34574), 9732 states have return successors, (111015), 34470 states have call predecessors, (111015), 34569 states have call successors, (111015) [2024-12-02 09:03:02,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178591 states to 178591 states and 356089 transitions. [2024-12-02 09:03:02,459 INFO L78 Accepts]: Start accepts. Automaton has 178591 states and 356089 transitions. Word has length 196 [2024-12-02 09:03:02,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:03:02,459 INFO L471 AbstractCegarLoop]: Abstraction has 178591 states and 356089 transitions. [2024-12-02 09:03:02,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) [2024-12-02 09:03:02,460 INFO L276 IsEmpty]: Start isEmpty. Operand 178591 states and 356089 transitions. [2024-12-02 09:03:02,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-12-02 09:03:02,476 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:03:02,477 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:03:02,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 09:03:02,477 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:03:02,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:03:02,477 INFO L85 PathProgramCache]: Analyzing trace with hash -386354237, now seen corresponding path program 1 times [2024-12-02 09:03:02,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:03:02,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120353121] [2024-12-02 09:03:02,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:02,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:03:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:02,806 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-12-02 09:03:02,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:03:02,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120353121] [2024-12-02 09:03:02,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120353121] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:03:02,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902995083] [2024-12-02 09:03:02,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:03:02,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:03:02,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:03:02,810 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:03:02,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d2679ef-2a03-4e8a-a372-7118a9635d1c/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 09:03:03,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:03:03,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 2423 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 09:03:03,228 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:03:03,394 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-12-02 09:03:03,394 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:03:03,847 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-12-02 09:03:03,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902995083] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:03:03,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:03:03,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 6] total 14 [2024-12-02 09:03:03,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134596646] [2024-12-02 09:03:03,848 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:03:03,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 09:03:03,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:03:03,849 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 09:03:03,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-12-02 09:03:03,849 INFO L87 Difference]: Start difference. First operand 178591 states and 356089 transitions. Second operand has 14 states, 14 states have (on average 18.0) internal successors, (252), 14 states have internal predecessors, (252), 10 states have call successors, (58), 6 states have call predecessors, (58), 7 states have return successors, (56), 11 states have call predecessors, (56), 9 states have call successors, (56)