./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.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_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/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_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/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_f072a1e1-4498-4176-88cf-0ae91405b337/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 8903dcb91a7500453f98b743541ef164d589c2f5828e51ac11fb5ea90b79c3dd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:35:54,164 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:35:54,217 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 10:35:54,221 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:35:54,222 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:35:54,242 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:35:54,242 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:35:54,243 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:35:54,243 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:35:54,243 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:35:54,243 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:35:54,243 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:35:54,244 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:35:54,244 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:35:54,244 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:35:54,244 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:35:54,244 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:35:54,244 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:35:54,244 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:35:54,244 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:35:54,244 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:35:54,245 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:35:54,245 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:35:54,245 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:35:54,245 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:35:54,245 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:35:54,245 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:35:54,245 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:35:54,245 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:35:54,245 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:35:54,246 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:35:54,246 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:35:54,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:35:54,246 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:35:54,246 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:35:54,246 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:35:54,246 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:35:54,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:35:54,246 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:35:54,246 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:35:54,247 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:35:54,247 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:35:54,247 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:35:54,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:35:54,247 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:35:54,247 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:35:54,247 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:35:54,247 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:35:54,247 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_f072a1e1-4498-4176-88cf-0ae91405b337/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 -> 8903dcb91a7500453f98b743541ef164d589c2f5828e51ac11fb5ea90b79c3dd [2024-12-02 10:35:54,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:35:54,455 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:35:54,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:35:54,458 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:35:54,459 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:35:54,460 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2024-12-02 10:35:57,075 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/data/6f1f84c59/febddab4e33545ab83ede1548d6351ab/FLAG25a255d71 [2024-12-02 10:35:57,335 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:35:57,335 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2024-12-02 10:35:57,348 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/data/6f1f84c59/febddab4e33545ab83ede1548d6351ab/FLAG25a255d71 [2024-12-02 10:35:57,362 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/data/6f1f84c59/febddab4e33545ab83ede1548d6351ab [2024-12-02 10:35:57,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:35:57,365 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:35:57,366 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:35:57,366 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:35:57,369 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:35:57,370 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:35:57" (1/1) ... [2024-12-02 10:35:57,371 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2391cd02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:57, skipping insertion in model container [2024-12-02 10:35:57,371 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:35:57" (1/1) ... [2024-12-02 10:35:57,400 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:35:57,572 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_f072a1e1-4498-4176-88cf-0ae91405b337/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[7543,7556] [2024-12-02 10:35:57,589 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_f072a1e1-4498-4176-88cf-0ae91405b337/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[10430,10443] [2024-12-02 10:35:57,596 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_f072a1e1-4498-4176-88cf-0ae91405b337/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[11521,11534] [2024-12-02 10:35:57,601 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_f072a1e1-4498-4176-88cf-0ae91405b337/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[12127,12140] [2024-12-02 10:35:57,609 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_f072a1e1-4498-4176-88cf-0ae91405b337/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[13546,13559] [2024-12-02 10:35:57,614 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_f072a1e1-4498-4176-88cf-0ae91405b337/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14152,14165] [2024-12-02 10:35:57,620 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_f072a1e1-4498-4176-88cf-0ae91405b337/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15123,15136] [2024-12-02 10:35:57,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:35:57,676 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:35:57,713 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_f072a1e1-4498-4176-88cf-0ae91405b337/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[7543,7556] [2024-12-02 10:35:57,722 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_f072a1e1-4498-4176-88cf-0ae91405b337/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[10430,10443] [2024-12-02 10:35:57,728 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_f072a1e1-4498-4176-88cf-0ae91405b337/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[11521,11534] [2024-12-02 10:35:57,731 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_f072a1e1-4498-4176-88cf-0ae91405b337/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[12127,12140] [2024-12-02 10:35:57,738 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_f072a1e1-4498-4176-88cf-0ae91405b337/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[13546,13559] [2024-12-02 10:35:57,742 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_f072a1e1-4498-4176-88cf-0ae91405b337/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[14152,14165] [2024-12-02 10:35:57,747 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_f072a1e1-4498-4176-88cf-0ae91405b337/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15123,15136] [2024-12-02 10:35:57,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:35:57,791 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:35:57,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:57 WrapperNode [2024-12-02 10:35:57,792 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:35:57,792 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:35:57,792 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:35:57,793 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:35:57,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:57" (1/1) ... [2024-12-02 10:35:57,809 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:57" (1/1) ... [2024-12-02 10:35:57,849 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1104 [2024-12-02 10:35:57,849 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:35:57,850 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:35:57,850 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:35:57,850 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:35:57,858 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:57" (1/1) ... [2024-12-02 10:35:57,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:57" (1/1) ... [2024-12-02 10:35:57,862 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:57" (1/1) ... [2024-12-02 10:35:57,880 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 10:35:57,880 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:57" (1/1) ... [2024-12-02 10:35:57,880 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:57" (1/1) ... [2024-12-02 10:35:57,893 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:57" (1/1) ... [2024-12-02 10:35:57,895 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:57" (1/1) ... [2024-12-02 10:35:57,901 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:57" (1/1) ... [2024-12-02 10:35:57,904 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:57" (1/1) ... [2024-12-02 10:35:57,907 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:57" (1/1) ... [2024-12-02 10:35:57,912 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:35:57,912 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:35:57,912 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:35:57,913 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:35:57,913 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:57" (1/1) ... [2024-12-02 10:35:57,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:35:57,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:35:57,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:35:57,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:35:57,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:35:57,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:35:57,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:35:57,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:35:58,070 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:35:58,072 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:35:58,767 INFO L? ?]: Removed 178 outVars from TransFormulas that were not future-live. [2024-12-02 10:35:58,767 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:35:58,780 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:35:58,780 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 10:35:58,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:35:58 BoogieIcfgContainer [2024-12-02 10:35:58,781 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:35:58,783 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:35:58,783 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:35:58,786 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:35:58,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:35:57" (1/3) ... [2024-12-02 10:35:58,787 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@89f6f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:35:58, skipping insertion in model container [2024-12-02 10:35:58,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:35:57" (2/3) ... [2024-12-02 10:35:58,787 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@89f6f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:35:58, skipping insertion in model container [2024-12-02 10:35:58,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:35:58" (3/3) ... [2024-12-02 10:35:58,788 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2024-12-02 10:35:58,799 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:35:58,801 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c that has 1 procedures, 207 locations, 1 initial locations, 0 loop locations, and 7 error locations. [2024-12-02 10:35:58,847 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:35:58,856 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;@61814878, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:35:58,856 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-12-02 10:35:58,860 INFO L276 IsEmpty]: Start isEmpty. Operand has 207 states, 199 states have (on average 1.8241206030150754) internal successors, (363), 206 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:35:58,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-12-02 10:35:58,867 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:58,867 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:35:58,868 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:35:58,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:58,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1485336045, now seen corresponding path program 1 times [2024-12-02 10:35:58,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:58,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053990847] [2024-12-02 10:35:58,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:58,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:59,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:35:59,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:59,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053990847] [2024-12-02 10:35:59,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053990847] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:59,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:59,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:35:59,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966783592] [2024-12-02 10:35:59,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:59,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:35:59,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:59,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:35:59,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:35:59,299 INFO L87 Difference]: Start difference. First operand has 207 states, 199 states have (on average 1.8241206030150754) internal successors, (363), 206 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:35:59,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:59,508 INFO L93 Difference]: Finished difference Result 339 states and 570 transitions. [2024-12-02 10:35:59,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:35:59,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2024-12-02 10:35:59,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:59,519 INFO L225 Difference]: With dead ends: 339 [2024-12-02 10:35:59,519 INFO L226 Difference]: Without dead ends: 175 [2024-12-02 10:35:59,522 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:35:59,525 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 851 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:59,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 224 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:35:59,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-12-02 10:35:59,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2024-12-02 10:35:59,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 168 states have (on average 1.2857142857142858) internal successors, (216), 174 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:35:59,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 216 transitions. [2024-12-02 10:35:59,554 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 216 transitions. Word has length 47 [2024-12-02 10:35:59,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:59,555 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 216 transitions. [2024-12-02 10:35:59,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:35:59,555 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 216 transitions. [2024-12-02 10:35:59,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-12-02 10:35:59,556 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:59,556 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:35:59,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 10:35:59,557 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:35:59,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:59,557 INFO L85 PathProgramCache]: Analyzing trace with hash 200422799, now seen corresponding path program 1 times [2024-12-02 10:35:59,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:59,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180849812] [2024-12-02 10:35:59,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:59,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:59,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:35:59,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:59,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180849812] [2024-12-02 10:35:59,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180849812] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:59,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:59,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:35:59,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947693253] [2024-12-02 10:35:59,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:59,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:35:59,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:59,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:35:59,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:35:59,710 INFO L87 Difference]: Start difference. First operand 175 states and 216 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:35:59,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:35:59,845 INFO L93 Difference]: Finished difference Result 298 states and 377 transitions. [2024-12-02 10:35:59,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:35:59,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2024-12-02 10:35:59,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:35:59,847 INFO L225 Difference]: With dead ends: 298 [2024-12-02 10:35:59,847 INFO L226 Difference]: Without dead ends: 162 [2024-12-02 10:35:59,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:35:59,848 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 557 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:35:59,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 131 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:35:59,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-12-02 10:35:59,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2024-12-02 10:35:59,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 155 states have (on average 1.2903225806451613) internal successors, (200), 161 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:35:59,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 200 transitions. [2024-12-02 10:35:59,856 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 200 transitions. Word has length 48 [2024-12-02 10:35:59,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:35:59,856 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 200 transitions. [2024-12-02 10:35:59,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:35:59,856 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 200 transitions. [2024-12-02 10:35:59,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-12-02 10:35:59,857 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:35:59,857 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:35:59,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 10:35:59,858 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:35:59,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:35:59,858 INFO L85 PathProgramCache]: Analyzing trace with hash -2021523794, now seen corresponding path program 1 times [2024-12-02 10:35:59,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:35:59,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044673261] [2024-12-02 10:35:59,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:35:59,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:35:59,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:35:59,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:35:59,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:35:59,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044673261] [2024-12-02 10:35:59,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044673261] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:35:59,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:35:59,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:35:59,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135054858] [2024-12-02 10:35:59,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:35:59,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:35:59,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:35:59,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:35:59,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:35:59,988 INFO L87 Difference]: Start difference. First operand 162 states and 200 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:00,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:00,117 INFO L93 Difference]: Finished difference Result 285 states and 360 transitions. [2024-12-02 10:36:00,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:36:00,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2024-12-02 10:36:00,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:00,119 INFO L225 Difference]: With dead ends: 285 [2024-12-02 10:36:00,119 INFO L226 Difference]: Without dead ends: 157 [2024-12-02 10:36:00,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:36:00,120 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 523 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:00,120 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 128 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:36:00,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-12-02 10:36:00,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2024-12-02 10:36:00,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 150 states have (on average 1.2866666666666666) internal successors, (193), 156 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:00,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 193 transitions. [2024-12-02 10:36:00,128 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 193 transitions. Word has length 49 [2024-12-02 10:36:00,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:00,128 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 193 transitions. [2024-12-02 10:36:00,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:00,128 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 193 transitions. [2024-12-02 10:36:00,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-12-02 10:36:00,129 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:00,129 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:00,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 10:36:00,129 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:00,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:00,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1243075504, now seen corresponding path program 1 times [2024-12-02 10:36:00,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:00,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350010913] [2024-12-02 10:36:00,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:00,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:00,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:00,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:00,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350010913] [2024-12-02 10:36:00,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350010913] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:00,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:00,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:36:00,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578276554] [2024-12-02 10:36:00,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:00,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:36:00,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:00,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:36:00,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:36:00,495 INFO L87 Difference]: Start difference. First operand 157 states and 193 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:00,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:00,870 INFO L93 Difference]: Finished difference Result 244 states and 303 transitions. [2024-12-02 10:36:00,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 10:36:00,871 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-12-02 10:36:00,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:00,872 INFO L225 Difference]: With dead ends: 244 [2024-12-02 10:36:00,872 INFO L226 Difference]: Without dead ends: 239 [2024-12-02 10:36:00,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-12-02 10:36:00,874 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 860 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:00,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 484 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:36:00,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-12-02 10:36:00,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 157. [2024-12-02 10:36:00,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 150 states have (on average 1.28) internal successors, (192), 156 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:00,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 192 transitions. [2024-12-02 10:36:00,884 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 192 transitions. Word has length 50 [2024-12-02 10:36:00,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:00,884 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 192 transitions. [2024-12-02 10:36:00,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:00,884 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 192 transitions. [2024-12-02 10:36:00,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-12-02 10:36:00,885 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:00,885 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:00,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 10:36:00,886 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:00,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:00,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1139694690, now seen corresponding path program 1 times [2024-12-02 10:36:00,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:00,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683693425] [2024-12-02 10:36:00,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:00,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:01,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:01,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:01,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683693425] [2024-12-02 10:36:01,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683693425] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:01,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:01,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:36:01,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720857] [2024-12-02 10:36:01,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:01,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:36:01,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:01,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:36:01,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:36:01,221 INFO L87 Difference]: Start difference. First operand 157 states and 192 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:01,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:01,617 INFO L93 Difference]: Finished difference Result 303 states and 386 transitions. [2024-12-02 10:36:01,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 10:36:01,618 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-12-02 10:36:01,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:01,619 INFO L225 Difference]: With dead ends: 303 [2024-12-02 10:36:01,619 INFO L226 Difference]: Without dead ends: 243 [2024-12-02 10:36:01,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2024-12-02 10:36:01,621 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 880 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:01,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 624 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:36:01,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-12-02 10:36:01,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 157. [2024-12-02 10:36:01,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 150 states have (on average 1.2733333333333334) internal successors, (191), 156 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:01,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 191 transitions. [2024-12-02 10:36:01,628 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 191 transitions. Word has length 50 [2024-12-02 10:36:01,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:01,629 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 191 transitions. [2024-12-02 10:36:01,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:01,629 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 191 transitions. [2024-12-02 10:36:01,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-12-02 10:36:01,630 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:01,630 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:01,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 10:36:01,630 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:01,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:01,631 INFO L85 PathProgramCache]: Analyzing trace with hash 134088220, now seen corresponding path program 1 times [2024-12-02 10:36:01,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:01,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075421412] [2024-12-02 10:36:01,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:01,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:01,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:01,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:01,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:01,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075421412] [2024-12-02 10:36:01,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075421412] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:01,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:01,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:36:01,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142964331] [2024-12-02 10:36:01,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:01,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:36:01,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:01,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:36:01,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:36:01,888 INFO L87 Difference]: Start difference. First operand 157 states and 191 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:02,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:02,141 INFO L93 Difference]: Finished difference Result 312 states and 389 transitions. [2024-12-02 10:36:02,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:36:02,142 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-12-02 10:36:02,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:02,143 INFO L225 Difference]: With dead ends: 312 [2024-12-02 10:36:02,143 INFO L226 Difference]: Without dead ends: 229 [2024-12-02 10:36:02,143 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:36:02,144 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 964 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:02,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [964 Valid, 389 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:36:02,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-12-02 10:36:02,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 157. [2024-12-02 10:36:02,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 150 states have (on average 1.2666666666666666) internal successors, (190), 156 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:02,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 190 transitions. [2024-12-02 10:36:02,150 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 190 transitions. Word has length 50 [2024-12-02 10:36:02,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:02,150 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 190 transitions. [2024-12-02 10:36:02,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:02,150 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 190 transitions. [2024-12-02 10:36:02,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-12-02 10:36:02,151 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:02,151 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:02,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 10:36:02,151 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:02,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:02,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1263855603, now seen corresponding path program 1 times [2024-12-02 10:36:02,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:02,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118017296] [2024-12-02 10:36:02,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:02,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:02,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:03,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:03,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:03,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118017296] [2024-12-02 10:36:03,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118017296] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:03,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:03,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 10:36:03,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688515841] [2024-12-02 10:36:03,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:03,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 10:36:03,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:03,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 10:36:03,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-12-02 10:36:03,163 INFO L87 Difference]: Start difference. First operand 157 states and 190 transitions. Second operand has 19 states, 19 states have (on average 2.736842105263158) internal successors, (52), 19 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:04,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:04,565 INFO L93 Difference]: Finished difference Result 436 states and 556 transitions. [2024-12-02 10:36:04,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 10:36:04,565 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.736842105263158) internal successors, (52), 19 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2024-12-02 10:36:04,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:04,567 INFO L225 Difference]: With dead ends: 436 [2024-12-02 10:36:04,567 INFO L226 Difference]: Without dead ends: 389 [2024-12-02 10:36:04,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=235, Invalid=887, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 10:36:04,568 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 1549 mSDsluCounter, 2095 mSDsCounter, 0 mSdLazyCounter, 1092 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1549 SdHoareTripleChecker+Valid, 2287 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:04,569 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1549 Valid, 2287 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1092 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 10:36:04,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-12-02 10:36:04,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 163. [2024-12-02 10:36:04,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 156 states have (on average 1.2692307692307692) internal successors, (198), 162 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:04,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 198 transitions. [2024-12-02 10:36:04,575 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 198 transitions. Word has length 52 [2024-12-02 10:36:04,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:04,575 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 198 transitions. [2024-12-02 10:36:04,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.736842105263158) internal successors, (52), 19 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:04,576 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 198 transitions. [2024-12-02 10:36:04,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-12-02 10:36:04,580 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:04,580 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:04,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 10:36:04,581 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:04,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:04,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1250594545, now seen corresponding path program 1 times [2024-12-02 10:36:04,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:04,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294738680] [2024-12-02 10:36:04,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:04,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:05,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:05,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:05,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294738680] [2024-12-02 10:36:05,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294738680] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:05,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:05,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 10:36:05,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670330692] [2024-12-02 10:36:05,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:05,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 10:36:05,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:05,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 10:36:05,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2024-12-02 10:36:05,525 INFO L87 Difference]: Start difference. First operand 163 states and 198 transitions. Second operand has 19 states, 19 states have (on average 2.736842105263158) internal successors, (52), 19 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:07,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:07,219 INFO L93 Difference]: Finished difference Result 389 states and 488 transitions. [2024-12-02 10:36:07,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 10:36:07,220 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.736842105263158) internal successors, (52), 19 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2024-12-02 10:36:07,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:07,221 INFO L225 Difference]: With dead ends: 389 [2024-12-02 10:36:07,221 INFO L226 Difference]: Without dead ends: 383 [2024-12-02 10:36:07,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=285, Invalid=975, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 10:36:07,222 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 1522 mSDsluCounter, 2421 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 2612 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:07,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 2612 Invalid, 1233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1222 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 10:36:07,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-12-02 10:36:07,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 163. [2024-12-02 10:36:07,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 156 states have (on average 1.2628205128205128) internal successors, (197), 162 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:07,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 197 transitions. [2024-12-02 10:36:07,227 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 197 transitions. Word has length 52 [2024-12-02 10:36:07,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:07,228 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 197 transitions. [2024-12-02 10:36:07,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.736842105263158) internal successors, (52), 19 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:07,228 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 197 transitions. [2024-12-02 10:36:07,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-12-02 10:36:07,229 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:07,229 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:07,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 10:36:07,229 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:07,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:07,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1783814727, now seen corresponding path program 1 times [2024-12-02 10:36:07,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:07,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89224258] [2024-12-02 10:36:07,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:07,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:07,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:07,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:07,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89224258] [2024-12-02 10:36:07,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89224258] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:07,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:07,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 10:36:07,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915009770] [2024-12-02 10:36:07,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:07,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 10:36:07,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:07,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 10:36:07,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:36:07,650 INFO L87 Difference]: Start difference. First operand 163 states and 197 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:08,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:08,205 INFO L93 Difference]: Finished difference Result 290 states and 370 transitions. [2024-12-02 10:36:08,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 10:36:08,205 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2024-12-02 10:36:08,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:08,206 INFO L225 Difference]: With dead ends: 290 [2024-12-02 10:36:08,206 INFO L226 Difference]: Without dead ends: 236 [2024-12-02 10:36:08,206 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-12-02 10:36:08,207 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 827 mSDsluCounter, 1306 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 1545 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:08,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 1545 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:36:08,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-12-02 10:36:08,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 152. [2024-12-02 10:36:08,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 146 states have (on average 1.2671232876712328) internal successors, (185), 151 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:08,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 185 transitions. [2024-12-02 10:36:08,211 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 185 transitions. Word has length 52 [2024-12-02 10:36:08,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:08,211 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 185 transitions. [2024-12-02 10:36:08,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:08,211 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 185 transitions. [2024-12-02 10:36:08,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-12-02 10:36:08,211 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:08,211 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:08,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 10:36:08,212 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:08,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:08,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1706910886, now seen corresponding path program 1 times [2024-12-02 10:36:08,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:08,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32626707] [2024-12-02 10:36:08,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:08,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:08,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:08,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:08,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32626707] [2024-12-02 10:36:08,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32626707] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:08,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:08,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 10:36:08,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502710673] [2024-12-02 10:36:08,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:08,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 10:36:08,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:08,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 10:36:08,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:36:08,570 INFO L87 Difference]: Start difference. First operand 152 states and 185 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:09,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:09,069 INFO L93 Difference]: Finished difference Result 222 states and 276 transitions. [2024-12-02 10:36:09,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 10:36:09,069 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2024-12-02 10:36:09,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:09,070 INFO L225 Difference]: With dead ends: 222 [2024-12-02 10:36:09,070 INFO L226 Difference]: Without dead ends: 218 [2024-12-02 10:36:09,071 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-12-02 10:36:09,071 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 817 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 817 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:09,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [817 Valid, 1030 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:36:09,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-12-02 10:36:09,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 148. [2024-12-02 10:36:09,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.2657342657342658) internal successors, (181), 147 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:09,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 181 transitions. [2024-12-02 10:36:09,075 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 181 transitions. Word has length 52 [2024-12-02 10:36:09,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:09,075 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 181 transitions. [2024-12-02 10:36:09,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:09,076 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 181 transitions. [2024-12-02 10:36:09,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-12-02 10:36:09,076 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:09,076 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:09,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 10:36:09,076 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:09,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:09,076 INFO L85 PathProgramCache]: Analyzing trace with hash 190692674, now seen corresponding path program 1 times [2024-12-02 10:36:09,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:09,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674944277] [2024-12-02 10:36:09,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:09,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:09,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:09,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:09,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674944277] [2024-12-02 10:36:09,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674944277] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:09,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:09,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:36:09,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149410734] [2024-12-02 10:36:09,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:09,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:36:09,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:09,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:36:09,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:36:09,255 INFO L87 Difference]: Start difference. First operand 148 states and 181 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:09,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:09,509 INFO L93 Difference]: Finished difference Result 227 states and 280 transitions. [2024-12-02 10:36:09,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 10:36:09,509 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-12-02 10:36:09,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:09,510 INFO L225 Difference]: With dead ends: 227 [2024-12-02 10:36:09,510 INFO L226 Difference]: Without dead ends: 220 [2024-12-02 10:36:09,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2024-12-02 10:36:09,511 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 444 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:09,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 451 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:36:09,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-12-02 10:36:09,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 148. [2024-12-02 10:36:09,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.2517482517482517) internal successors, (179), 147 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:09,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 179 transitions. [2024-12-02 10:36:09,515 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 179 transitions. Word has length 53 [2024-12-02 10:36:09,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:09,515 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 179 transitions. [2024-12-02 10:36:09,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:09,516 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 179 transitions. [2024-12-02 10:36:09,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-12-02 10:36:09,516 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:09,516 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:09,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 10:36:09,517 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:09,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:09,517 INFO L85 PathProgramCache]: Analyzing trace with hash -185701506, now seen corresponding path program 1 times [2024-12-02 10:36:09,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:09,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45628953] [2024-12-02 10:36:09,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:09,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:10,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:10,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:10,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45628953] [2024-12-02 10:36:10,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45628953] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:10,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:10,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 10:36:10,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726268328] [2024-12-02 10:36:10,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:10,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 10:36:10,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:10,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 10:36:10,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:36:10,022 INFO L87 Difference]: Start difference. First operand 148 states and 179 transitions. Second operand has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:10,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:10,747 INFO L93 Difference]: Finished difference Result 403 states and 523 transitions. [2024-12-02 10:36:10,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 10:36:10,748 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-12-02 10:36:10,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:10,749 INFO L225 Difference]: With dead ends: 403 [2024-12-02 10:36:10,749 INFO L226 Difference]: Without dead ends: 356 [2024-12-02 10:36:10,749 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=188, Invalid=568, Unknown=0, NotChecked=0, Total=756 [2024-12-02 10:36:10,750 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 909 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:10,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [909 Valid, 1638 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:36:10,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-12-02 10:36:10,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 138. [2024-12-02 10:36:10,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 134 states have (on average 1.2462686567164178) internal successors, (167), 137 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:10,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 167 transitions. [2024-12-02 10:36:10,755 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 167 transitions. Word has length 53 [2024-12-02 10:36:10,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:10,755 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 167 transitions. [2024-12-02 10:36:10,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:10,755 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 167 transitions. [2024-12-02 10:36:10,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-12-02 10:36:10,756 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:10,756 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:10,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 10:36:10,756 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:10,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:10,756 INFO L85 PathProgramCache]: Analyzing trace with hash -659119293, now seen corresponding path program 1 times [2024-12-02 10:36:10,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:10,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655293467] [2024-12-02 10:36:10,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:10,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:10,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:10,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:10,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655293467] [2024-12-02 10:36:10,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655293467] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:10,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:10,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:36:10,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158839470] [2024-12-02 10:36:10,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:10,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:36:10,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:10,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:36:10,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:36:10,953 INFO L87 Difference]: Start difference. First operand 138 states and 167 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:11,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:11,246 INFO L93 Difference]: Finished difference Result 223 states and 273 transitions. [2024-12-02 10:36:11,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 10:36:11,247 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-12-02 10:36:11,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:11,248 INFO L225 Difference]: With dead ends: 223 [2024-12-02 10:36:11,248 INFO L226 Difference]: Without dead ends: 216 [2024-12-02 10:36:11,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-12-02 10:36:11,248 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 594 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:11,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 583 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:36:11,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-12-02 10:36:11,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 138. [2024-12-02 10:36:11,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 134 states have (on average 1.2388059701492538) internal successors, (166), 137 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:11,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 166 transitions. [2024-12-02 10:36:11,252 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 166 transitions. Word has length 53 [2024-12-02 10:36:11,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:11,252 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 166 transitions. [2024-12-02 10:36:11,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:11,252 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 166 transitions. [2024-12-02 10:36:11,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-12-02 10:36:11,253 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:11,253 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:11,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 10:36:11,253 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:11,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:11,254 INFO L85 PathProgramCache]: Analyzing trace with hash 339917441, now seen corresponding path program 1 times [2024-12-02 10:36:11,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:11,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602321415] [2024-12-02 10:36:11,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:11,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:11,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:11,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:11,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:11,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602321415] [2024-12-02 10:36:11,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602321415] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:11,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:11,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:36:11,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595773244] [2024-12-02 10:36:11,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:11,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:36:11,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:11,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:36:11,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:36:11,418 INFO L87 Difference]: Start difference. First operand 138 states and 166 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:11,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:11,739 INFO L93 Difference]: Finished difference Result 281 states and 356 transitions. [2024-12-02 10:36:11,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 10:36:11,739 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-12-02 10:36:11,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:11,740 INFO L225 Difference]: With dead ends: 281 [2024-12-02 10:36:11,740 INFO L226 Difference]: Without dead ends: 220 [2024-12-02 10:36:11,740 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2024-12-02 10:36:11,741 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 341 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:11,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 661 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:36:11,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-12-02 10:36:11,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 138. [2024-12-02 10:36:11,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 134 states have (on average 1.2313432835820894) internal successors, (165), 137 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:11,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 165 transitions. [2024-12-02 10:36:11,745 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 165 transitions. Word has length 53 [2024-12-02 10:36:11,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:11,745 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 165 transitions. [2024-12-02 10:36:11,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:11,745 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 165 transitions. [2024-12-02 10:36:11,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-12-02 10:36:11,746 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:11,746 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:11,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 10:36:11,746 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:11,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:11,746 INFO L85 PathProgramCache]: Analyzing trace with hash -11876974, now seen corresponding path program 1 times [2024-12-02 10:36:11,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:11,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674450310] [2024-12-02 10:36:11,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:11,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:12,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:12,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:12,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674450310] [2024-12-02 10:36:12,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674450310] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:12,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:12,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 10:36:12,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367050546] [2024-12-02 10:36:12,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:12,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 10:36:12,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:12,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 10:36:12,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:36:12,108 INFO L87 Difference]: Start difference. First operand 138 states and 165 transitions. Second operand has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:12,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:12,512 INFO L93 Difference]: Finished difference Result 334 states and 423 transitions. [2024-12-02 10:36:12,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 10:36:12,513 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-12-02 10:36:12,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:12,514 INFO L225 Difference]: With dead ends: 334 [2024-12-02 10:36:12,514 INFO L226 Difference]: Without dead ends: 316 [2024-12-02 10:36:12,514 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-12-02 10:36:12,515 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 717 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:12,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 955 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:36:12,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-12-02 10:36:12,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 120. [2024-12-02 10:36:12,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 117 states have (on average 1.2393162393162394) internal successors, (145), 119 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:12,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 145 transitions. [2024-12-02 10:36:12,519 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 145 transitions. Word has length 55 [2024-12-02 10:36:12,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:12,519 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 145 transitions. [2024-12-02 10:36:12,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:12,519 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 145 transitions. [2024-12-02 10:36:12,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-12-02 10:36:12,519 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:12,520 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:12,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 10:36:12,520 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:12,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:12,520 INFO L85 PathProgramCache]: Analyzing trace with hash -637393645, now seen corresponding path program 1 times [2024-12-02 10:36:12,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:12,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167856989] [2024-12-02 10:36:12,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:12,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:13,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:13,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:13,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167856989] [2024-12-02 10:36:13,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167856989] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:13,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:13,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 10:36:13,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710429455] [2024-12-02 10:36:13,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:13,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 10:36:13,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:13,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 10:36:13,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2024-12-02 10:36:13,118 INFO L87 Difference]: Start difference. First operand 120 states and 145 transitions. Second operand has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:14,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:14,141 INFO L93 Difference]: Finished difference Result 328 states and 417 transitions. [2024-12-02 10:36:14,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 10:36:14,142 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-12-02 10:36:14,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:14,143 INFO L225 Difference]: With dead ends: 328 [2024-12-02 10:36:14,143 INFO L226 Difference]: Without dead ends: 320 [2024-12-02 10:36:14,144 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=211, Invalid=911, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 10:36:14,144 INFO L435 NwaCegarLoop]: 258 mSDtfsCounter, 766 mSDsluCounter, 2617 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 2875 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:14,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 2875 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:36:14,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-12-02 10:36:14,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 129. [2024-12-02 10:36:14,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 126 states have (on average 1.2380952380952381) internal successors, (156), 128 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:14,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 156 transitions. [2024-12-02 10:36:14,147 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 156 transitions. Word has length 55 [2024-12-02 10:36:14,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:14,147 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 156 transitions. [2024-12-02 10:36:14,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:14,147 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 156 transitions. [2024-12-02 10:36:14,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-12-02 10:36:14,148 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:14,148 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:14,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 10:36:14,148 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:14,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:14,148 INFO L85 PathProgramCache]: Analyzing trace with hash -824240014, now seen corresponding path program 1 times [2024-12-02 10:36:14,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:14,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252988883] [2024-12-02 10:36:14,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:14,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:14,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:14,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:14,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252988883] [2024-12-02 10:36:14,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252988883] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:14,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:14,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 10:36:14,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879591621] [2024-12-02 10:36:14,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:14,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 10:36:14,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:14,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 10:36:14,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2024-12-02 10:36:14,746 INFO L87 Difference]: Start difference. First operand 129 states and 156 transitions. Second operand has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:15,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:15,602 INFO L93 Difference]: Finished difference Result 332 states and 423 transitions. [2024-12-02 10:36:15,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 10:36:15,602 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-12-02 10:36:15,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:15,603 INFO L225 Difference]: With dead ends: 332 [2024-12-02 10:36:15,603 INFO L226 Difference]: Without dead ends: 326 [2024-12-02 10:36:15,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=192, Invalid=800, Unknown=0, NotChecked=0, Total=992 [2024-12-02 10:36:15,604 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 698 mSDsluCounter, 2088 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 2327 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:15,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 2327 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 10:36:15,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-12-02 10:36:15,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 135. [2024-12-02 10:36:15,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 132 states have (on average 1.2424242424242424) internal successors, (164), 134 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:15,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 164 transitions. [2024-12-02 10:36:15,608 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 164 transitions. Word has length 55 [2024-12-02 10:36:15,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:15,608 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 164 transitions. [2024-12-02 10:36:15,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:15,608 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 164 transitions. [2024-12-02 10:36:15,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-12-02 10:36:15,609 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:15,609 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:15,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 10:36:15,609 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:15,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:15,609 INFO L85 PathProgramCache]: Analyzing trace with hash -808849069, now seen corresponding path program 1 times [2024-12-02 10:36:15,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:15,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122098877] [2024-12-02 10:36:15,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:15,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:15,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:15,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:15,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:15,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122098877] [2024-12-02 10:36:15,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122098877] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:15,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:15,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 10:36:15,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023522349] [2024-12-02 10:36:15,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:15,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 10:36:15,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:15,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 10:36:15,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:36:15,933 INFO L87 Difference]: Start difference. First operand 135 states and 164 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:16,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:16,358 INFO L93 Difference]: Finished difference Result 197 states and 248 transitions. [2024-12-02 10:36:16,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 10:36:16,358 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-12-02 10:36:16,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:16,359 INFO L225 Difference]: With dead ends: 197 [2024-12-02 10:36:16,359 INFO L226 Difference]: Without dead ends: 182 [2024-12-02 10:36:16,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2024-12-02 10:36:16,359 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 503 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:16,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 1055 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:36:16,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-12-02 10:36:16,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 119. [2024-12-02 10:36:16,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 117 states have (on average 1.2478632478632479) internal successors, (146), 118 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:16,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 146 transitions. [2024-12-02 10:36:16,361 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 146 transitions. Word has length 56 [2024-12-02 10:36:16,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:16,361 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 146 transitions. [2024-12-02 10:36:16,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:16,362 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 146 transitions. [2024-12-02 10:36:16,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-12-02 10:36:16,362 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:16,362 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:16,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 10:36:16,362 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:16,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:16,362 INFO L85 PathProgramCache]: Analyzing trace with hash -995695438, now seen corresponding path program 1 times [2024-12-02 10:36:16,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:16,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826112971] [2024-12-02 10:36:16,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:16,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:16,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:16,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:16,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:16,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826112971] [2024-12-02 10:36:16,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826112971] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:16,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:16,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 10:36:16,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421779450] [2024-12-02 10:36:16,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:16,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 10:36:16,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:16,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 10:36:16,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:36:16,749 INFO L87 Difference]: Start difference. First operand 119 states and 146 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:17,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:17,152 INFO L93 Difference]: Finished difference Result 175 states and 225 transitions. [2024-12-02 10:36:17,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 10:36:17,153 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-12-02 10:36:17,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:17,153 INFO L225 Difference]: With dead ends: 175 [2024-12-02 10:36:17,153 INFO L226 Difference]: Without dead ends: 169 [2024-12-02 10:36:17,153 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2024-12-02 10:36:17,154 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 551 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:17,154 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 868 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:36:17,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-12-02 10:36:17,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 102. [2024-12-02 10:36:17,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 1.2475247524752475) internal successors, (126), 101 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:17,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 126 transitions. [2024-12-02 10:36:17,156 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 126 transitions. Word has length 56 [2024-12-02 10:36:17,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:17,156 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 126 transitions. [2024-12-02 10:36:17,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:17,156 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 126 transitions. [2024-12-02 10:36:17,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-12-02 10:36:17,157 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:17,157 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:17,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 10:36:17,157 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:17,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:17,157 INFO L85 PathProgramCache]: Analyzing trace with hash 2042294308, now seen corresponding path program 1 times [2024-12-02 10:36:17,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:17,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444808574] [2024-12-02 10:36:17,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:17,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:17,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:17,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:17,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444808574] [2024-12-02 10:36:17,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444808574] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:17,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:17,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:36:17,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130472415] [2024-12-02 10:36:17,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:17,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:36:17,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:17,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:36:17,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:17,210 INFO L87 Difference]: Start difference. First operand 102 states and 126 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:17,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:17,276 INFO L93 Difference]: Finished difference Result 360 states and 504 transitions. [2024-12-02 10:36:17,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:36:17,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-12-02 10:36:17,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:17,278 INFO L225 Difference]: With dead ends: 360 [2024-12-02 10:36:17,278 INFO L226 Difference]: Without dead ends: 317 [2024-12-02 10:36:17,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:36:17,279 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 479 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:17,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 599 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:17,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-12-02 10:36:17,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 143. [2024-12-02 10:36:17,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 1.3098591549295775) internal successors, (186), 142 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:17,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 186 transitions. [2024-12-02 10:36:17,284 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 186 transitions. Word has length 73 [2024-12-02 10:36:17,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:17,284 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 186 transitions. [2024-12-02 10:36:17,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:17,284 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 186 transitions. [2024-12-02 10:36:17,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-12-02 10:36:17,284 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:17,285 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:17,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 10:36:17,285 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:17,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:17,285 INFO L85 PathProgramCache]: Analyzing trace with hash -786943772, now seen corresponding path program 1 times [2024-12-02 10:36:17,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:17,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594088835] [2024-12-02 10:36:17,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:17,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:17,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:17,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:17,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594088835] [2024-12-02 10:36:17,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594088835] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:17,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:17,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:36:17,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213913316] [2024-12-02 10:36:17,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:17,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:36:17,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:17,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:36:17,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:17,343 INFO L87 Difference]: Start difference. First operand 143 states and 186 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:17,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:17,380 INFO L93 Difference]: Finished difference Result 438 states and 616 transitions. [2024-12-02 10:36:17,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:36:17,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-12-02 10:36:17,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:17,382 INFO L225 Difference]: With dead ends: 438 [2024-12-02 10:36:17,382 INFO L226 Difference]: Without dead ends: 354 [2024-12-02 10:36:17,382 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:36:17,383 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 279 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:17,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 433 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:17,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-12-02 10:36:17,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 225. [2024-12-02 10:36:17,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 224 states have (on average 1.3705357142857142) internal successors, (307), 224 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:17,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 307 transitions. [2024-12-02 10:36:17,389 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 307 transitions. Word has length 75 [2024-12-02 10:36:17,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:17,389 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 307 transitions. [2024-12-02 10:36:17,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:17,389 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 307 transitions. [2024-12-02 10:36:17,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-12-02 10:36:17,390 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:17,390 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:17,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 10:36:17,390 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:17,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:17,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1322322984, now seen corresponding path program 1 times [2024-12-02 10:36:17,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:17,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919183453] [2024-12-02 10:36:17,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:17,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:17,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:17,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:17,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:17,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919183453] [2024-12-02 10:36:17,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919183453] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:17,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:17,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:36:17,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103516945] [2024-12-02 10:36:17,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:17,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:36:17,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:17,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:36:17,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:17,461 INFO L87 Difference]: Start difference. First operand 225 states and 307 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:17,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:17,501 INFO L93 Difference]: Finished difference Result 520 states and 737 transitions. [2024-12-02 10:36:17,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:36:17,501 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-12-02 10:36:17,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:17,502 INFO L225 Difference]: With dead ends: 520 [2024-12-02 10:36:17,503 INFO L226 Difference]: Without dead ends: 436 [2024-12-02 10:36:17,503 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:36:17,504 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 290 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:17,504 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 430 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:17,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-12-02 10:36:17,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 348. [2024-12-02 10:36:17,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 347 states have (on average 1.4063400576368876) internal successors, (488), 347 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:17,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 488 transitions. [2024-12-02 10:36:17,520 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 488 transitions. Word has length 75 [2024-12-02 10:36:17,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:17,520 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 488 transitions. [2024-12-02 10:36:17,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:17,520 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 488 transitions. [2024-12-02 10:36:17,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-12-02 10:36:17,521 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:17,521 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:17,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 10:36:17,521 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:17,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:17,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1446907099, now seen corresponding path program 1 times [2024-12-02 10:36:17,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:17,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588796668] [2024-12-02 10:36:17,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:17,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:17,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:17,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:17,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588796668] [2024-12-02 10:36:17,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588796668] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:17,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:17,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:36:17,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639934546] [2024-12-02 10:36:17,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:17,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:36:17,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:17,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:36:17,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:36:17,568 INFO L87 Difference]: Start difference. First operand 348 states and 488 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:17,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:17,589 INFO L93 Difference]: Finished difference Result 639 states and 914 transitions. [2024-12-02 10:36:17,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:36:17,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-12-02 10:36:17,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:17,591 INFO L225 Difference]: With dead ends: 639 [2024-12-02 10:36:17,591 INFO L226 Difference]: Without dead ends: 350 [2024-12-02 10:36:17,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:36:17,592 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 50 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:17,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 200 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:17,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-12-02 10:36:17,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 348. [2024-12-02 10:36:17,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 347 states have (on average 1.3948126801152738) internal successors, (484), 347 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:17,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 484 transitions. [2024-12-02 10:36:17,598 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 484 transitions. Word has length 75 [2024-12-02 10:36:17,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:17,598 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 484 transitions. [2024-12-02 10:36:17,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:17,599 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 484 transitions. [2024-12-02 10:36:17,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-12-02 10:36:17,599 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:17,599 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:17,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 10:36:17,599 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:17,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:17,600 INFO L85 PathProgramCache]: Analyzing trace with hash 2078767204, now seen corresponding path program 1 times [2024-12-02 10:36:17,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:17,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403036404] [2024-12-02 10:36:17,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:17,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:17,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:17,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:17,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403036404] [2024-12-02 10:36:17,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403036404] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:17,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:17,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:36:17,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938450771] [2024-12-02 10:36:17,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:17,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:36:17,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:17,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:36:17,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:36:17,640 INFO L87 Difference]: Start difference. First operand 348 states and 484 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:17,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:17,659 INFO L93 Difference]: Finished difference Result 881 states and 1251 transitions. [2024-12-02 10:36:17,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:36:17,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-12-02 10:36:17,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:17,661 INFO L225 Difference]: With dead ends: 881 [2024-12-02 10:36:17,661 INFO L226 Difference]: Without dead ends: 592 [2024-12-02 10:36:17,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:36:17,662 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 50 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:17,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 283 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:17,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2024-12-02 10:36:17,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 590. [2024-12-02 10:36:17,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 589 states have (on average 1.3837011884550086) internal successors, (815), 589 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:17,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 815 transitions. [2024-12-02 10:36:17,673 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 815 transitions. Word has length 75 [2024-12-02 10:36:17,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:17,673 INFO L471 AbstractCegarLoop]: Abstraction has 590 states and 815 transitions. [2024-12-02 10:36:17,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:17,674 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 815 transitions. [2024-12-02 10:36:17,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-12-02 10:36:17,674 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:17,674 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:17,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 10:36:17,674 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:17,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:17,675 INFO L85 PathProgramCache]: Analyzing trace with hash 95104542, now seen corresponding path program 1 times [2024-12-02 10:36:17,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:17,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052742778] [2024-12-02 10:36:17,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:17,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:17,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:17,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:17,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:17,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052742778] [2024-12-02 10:36:17,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052742778] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:17,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:17,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:36:17,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453901548] [2024-12-02 10:36:17,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:17,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:36:17,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:17,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:36:17,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:17,743 INFO L87 Difference]: Start difference. First operand 590 states and 815 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:17,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:17,779 INFO L93 Difference]: Finished difference Result 1051 states and 1467 transitions. [2024-12-02 10:36:17,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:36:17,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-12-02 10:36:17,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:17,781 INFO L225 Difference]: With dead ends: 1051 [2024-12-02 10:36:17,781 INFO L226 Difference]: Without dead ends: 898 [2024-12-02 10:36:17,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:36:17,782 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 284 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:17,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 453 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:17,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2024-12-02 10:36:17,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 741. [2024-12-02 10:36:17,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 740 states have (on average 1.3905405405405404) internal successors, (1029), 740 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:17,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 1029 transitions. [2024-12-02 10:36:17,796 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 1029 transitions. Word has length 75 [2024-12-02 10:36:17,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:17,796 INFO L471 AbstractCegarLoop]: Abstraction has 741 states and 1029 transitions. [2024-12-02 10:36:17,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:17,796 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 1029 transitions. [2024-12-02 10:36:17,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-12-02 10:36:17,797 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:17,797 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:17,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 10:36:17,797 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:17,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:17,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1963614716, now seen corresponding path program 1 times [2024-12-02 10:36:17,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:17,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117120354] [2024-12-02 10:36:17,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:17,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:17,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:17,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:17,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:17,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117120354] [2024-12-02 10:36:17,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117120354] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:17,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:17,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:36:17,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898363975] [2024-12-02 10:36:17,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:17,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:36:17,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:17,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:36:17,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:36:17,872 INFO L87 Difference]: Start difference. First operand 741 states and 1029 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:17,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:17,887 INFO L93 Difference]: Finished difference Result 1862 states and 2600 transitions. [2024-12-02 10:36:17,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:36:17,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-12-02 10:36:17,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:17,890 INFO L225 Difference]: With dead ends: 1862 [2024-12-02 10:36:17,890 INFO L226 Difference]: Without dead ends: 1180 [2024-12-02 10:36:17,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:36:17,891 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 59 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:17,892 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 266 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:17,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2024-12-02 10:36:17,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 1106. [2024-12-02 10:36:17,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 1105 states have (on average 1.3800904977375565) internal successors, (1525), 1105 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:17,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1525 transitions. [2024-12-02 10:36:17,910 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1525 transitions. Word has length 76 [2024-12-02 10:36:17,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:17,910 INFO L471 AbstractCegarLoop]: Abstraction has 1106 states and 1525 transitions. [2024-12-02 10:36:17,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:17,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1525 transitions. [2024-12-02 10:36:17,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-12-02 10:36:17,911 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:17,911 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:17,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 10:36:17,911 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:17,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:17,912 INFO L85 PathProgramCache]: Analyzing trace with hash -628172474, now seen corresponding path program 1 times [2024-12-02 10:36:17,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:17,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734496915] [2024-12-02 10:36:17,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:17,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:17,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:17,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:17,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734496915] [2024-12-02 10:36:17,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734496915] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:17,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:17,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:36:17,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109489920] [2024-12-02 10:36:17,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:17,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:36:17,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:17,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:36:17,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:36:17,999 INFO L87 Difference]: Start difference. First operand 1106 states and 1525 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:18,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:18,018 INFO L93 Difference]: Finished difference Result 3092 states and 4260 transitions. [2024-12-02 10:36:18,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:36:18,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-12-02 10:36:18,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:18,023 INFO L225 Difference]: With dead ends: 3092 [2024-12-02 10:36:18,024 INFO L226 Difference]: Without dead ends: 2045 [2024-12-02 10:36:18,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:36:18,025 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 52 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:18,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 265 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:18,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2024-12-02 10:36:18,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 1935. [2024-12-02 10:36:18,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1935 states, 1934 states have (on average 1.3624612202688728) internal successors, (2635), 1934 states have internal predecessors, (2635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:18,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 1935 states and 2635 transitions. [2024-12-02 10:36:18,055 INFO L78 Accepts]: Start accepts. Automaton has 1935 states and 2635 transitions. Word has length 77 [2024-12-02 10:36:18,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:18,055 INFO L471 AbstractCegarLoop]: Abstraction has 1935 states and 2635 transitions. [2024-12-02 10:36:18,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:18,055 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states and 2635 transitions. [2024-12-02 10:36:18,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-12-02 10:36:18,056 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:18,056 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:18,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 10:36:18,056 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:18,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:18,056 INFO L85 PathProgramCache]: Analyzing trace with hash -763788569, now seen corresponding path program 1 times [2024-12-02 10:36:18,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:18,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405851020] [2024-12-02 10:36:18,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:18,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:18,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:18,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:18,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:18,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405851020] [2024-12-02 10:36:18,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405851020] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:18,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:18,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:36:18,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101345509] [2024-12-02 10:36:18,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:18,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:36:18,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:18,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:36:18,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:36:18,127 INFO L87 Difference]: Start difference. First operand 1935 states and 2635 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:18,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:18,142 INFO L93 Difference]: Finished difference Result 5471 states and 7401 transitions. [2024-12-02 10:36:18,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:36:18,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-12-02 10:36:18,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:18,147 INFO L225 Difference]: With dead ends: 5471 [2024-12-02 10:36:18,147 INFO L226 Difference]: Without dead ends: 3595 [2024-12-02 10:36:18,148 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:36:18,148 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 42 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:18,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 263 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:18,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3595 states. [2024-12-02 10:36:18,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3595 to 3377. [2024-12-02 10:36:18,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3377 states, 3376 states have (on average 1.3341232227488151) internal successors, (4504), 3376 states have internal predecessors, (4504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:18,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3377 states to 3377 states and 4504 transitions. [2024-12-02 10:36:18,195 INFO L78 Accepts]: Start accepts. Automaton has 3377 states and 4504 transitions. Word has length 78 [2024-12-02 10:36:18,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:18,195 INFO L471 AbstractCegarLoop]: Abstraction has 3377 states and 4504 transitions. [2024-12-02 10:36:18,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:18,195 INFO L276 IsEmpty]: Start isEmpty. Operand 3377 states and 4504 transitions. [2024-12-02 10:36:18,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 10:36:18,195 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:18,195 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:18,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 10:36:18,196 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:18,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:18,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1461539563, now seen corresponding path program 1 times [2024-12-02 10:36:18,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:18,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613279172] [2024-12-02 10:36:18,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:18,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:18,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:18,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:18,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:18,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613279172] [2024-12-02 10:36:18,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613279172] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:18,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:18,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:36:18,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712736101] [2024-12-02 10:36:18,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:18,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:36:18,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:18,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:36:18,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:36:18,405 INFO L87 Difference]: Start difference. First operand 3377 states and 4504 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:18,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:18,437 INFO L93 Difference]: Finished difference Result 3475 states and 4633 transitions. [2024-12-02 10:36:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:36:18,438 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-12-02 10:36:18,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:18,442 INFO L225 Difference]: With dead ends: 3475 [2024-12-02 10:36:18,442 INFO L226 Difference]: Without dead ends: 3473 [2024-12-02 10:36:18,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 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 10:36:18,443 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 0 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:18,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 593 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:18,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3473 states. [2024-12-02 10:36:18,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3473 to 3473. [2024-12-02 10:36:18,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3473 states, 3472 states have (on average 1.3133640552995391) internal successors, (4560), 3472 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:18,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3473 states to 3473 states and 4560 transitions. [2024-12-02 10:36:18,489 INFO L78 Accepts]: Start accepts. Automaton has 3473 states and 4560 transitions. Word has length 79 [2024-12-02 10:36:18,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:18,490 INFO L471 AbstractCegarLoop]: Abstraction has 3473 states and 4560 transitions. [2024-12-02 10:36:18,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:18,490 INFO L276 IsEmpty]: Start isEmpty. Operand 3473 states and 4560 transitions. [2024-12-02 10:36:18,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 10:36:18,490 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:18,490 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:18,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 10:36:18,491 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:18,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:18,491 INFO L85 PathProgramCache]: Analyzing trace with hash 965347417, now seen corresponding path program 1 times [2024-12-02 10:36:18,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:18,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224731569] [2024-12-02 10:36:18,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:18,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:18,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:18,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:18,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224731569] [2024-12-02 10:36:18,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224731569] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:18,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:18,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:36:18,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580034295] [2024-12-02 10:36:18,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:18,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:36:18,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:18,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:36:18,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:36:18,538 INFO L87 Difference]: Start difference. First operand 3473 states and 4560 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:18,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:18,567 INFO L93 Difference]: Finished difference Result 7021 states and 9234 transitions. [2024-12-02 10:36:18,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:36:18,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-12-02 10:36:18,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:18,575 INFO L225 Difference]: With dead ends: 7021 [2024-12-02 10:36:18,576 INFO L226 Difference]: Without dead ends: 3607 [2024-12-02 10:36:18,578 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:36:18,579 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 66 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:18,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 216 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:18,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3607 states. [2024-12-02 10:36:18,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3607 to 3605. [2024-12-02 10:36:18,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3605 states, 3604 states have (on average 1.293007769145394) internal successors, (4660), 3604 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:18,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3605 states to 3605 states and 4660 transitions. [2024-12-02 10:36:18,613 INFO L78 Accepts]: Start accepts. Automaton has 3605 states and 4660 transitions. Word has length 79 [2024-12-02 10:36:18,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:18,613 INFO L471 AbstractCegarLoop]: Abstraction has 3605 states and 4660 transitions. [2024-12-02 10:36:18,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:18,613 INFO L276 IsEmpty]: Start isEmpty. Operand 3605 states and 4660 transitions. [2024-12-02 10:36:18,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 10:36:18,614 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:18,615 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 10:36:18,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 10:36:18,615 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:18,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:18,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1381911094, now seen corresponding path program 1 times [2024-12-02 10:36:18,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:18,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617373918] [2024-12-02 10:36:18,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:18,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:18,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:18,958 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:18,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:18,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617373918] [2024-12-02 10:36:18,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617373918] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:36:18,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719522298] [2024-12-02 10:36:18,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:18,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:18,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:36:18,961 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:36:18,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 10:36:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:19,140 INFO L256 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 10:36:19,145 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:36:19,861 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:19,861 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:36:21,009 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:21,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719522298] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:36:21,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:36:21,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 29 [2024-12-02 10:36:21,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789324416] [2024-12-02 10:36:21,009 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:36:21,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-12-02 10:36:21,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:21,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-12-02 10:36:21,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2024-12-02 10:36:21,011 INFO L87 Difference]: Start difference. First operand 3605 states and 4660 transitions. Second operand has 30 states, 30 states have (on average 9.033333333333333) internal successors, (271), 29 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:25,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:25,164 INFO L93 Difference]: Finished difference Result 33517 states and 43327 transitions. [2024-12-02 10:36:25,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2024-12-02 10:36:25,165 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 9.033333333333333) internal successors, (271), 29 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2024-12-02 10:36:25,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:25,226 INFO L225 Difference]: With dead ends: 33517 [2024-12-02 10:36:25,226 INFO L226 Difference]: Without dead ends: 29971 [2024-12-02 10:36:25,235 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7135 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=3290, Invalid=18466, Unknown=0, NotChecked=0, Total=21756 [2024-12-02 10:36:25,235 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 2587 mSDsluCounter, 1971 mSDsCounter, 0 mSdLazyCounter, 2167 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2587 SdHoareTripleChecker+Valid, 2118 SdHoareTripleChecker+Invalid, 2196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:25,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2587 Valid, 2118 Invalid, 2196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2167 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 10:36:25,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29971 states. [2024-12-02 10:36:25,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29971 to 18926. [2024-12-02 10:36:25,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18926 states, 18925 states have (on average 1.2861294583883751) internal successors, (24340), 18925 states have internal predecessors, (24340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:25,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18926 states to 18926 states and 24340 transitions. [2024-12-02 10:36:25,514 INFO L78 Accepts]: Start accepts. Automaton has 18926 states and 24340 transitions. Word has length 101 [2024-12-02 10:36:25,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:25,515 INFO L471 AbstractCegarLoop]: Abstraction has 18926 states and 24340 transitions. [2024-12-02 10:36:25,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 9.033333333333333) internal successors, (271), 29 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:25,515 INFO L276 IsEmpty]: Start isEmpty. Operand 18926 states and 24340 transitions. [2024-12-02 10:36:25,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-12-02 10:36:25,518 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:25,518 INFO L218 NwaCegarLoop]: trace histogram [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 10:36:25,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 10:36:25,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:25,719 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:25,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:25,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1412305418, now seen corresponding path program 1 times [2024-12-02 10:36:25,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:25,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206094621] [2024-12-02 10:36:25,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:25,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:25,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:26,005 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:26,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:26,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206094621] [2024-12-02 10:36:26,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206094621] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:36:26,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266585583] [2024-12-02 10:36:26,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:26,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:26,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:36:26,007 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:36:26,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 10:36:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:26,187 INFO L256 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 10:36:26,190 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:36:26,753 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:26,753 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:36:27,311 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:27,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266585583] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:36:27,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:36:27,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-12-02 10:36:27,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449405189] [2024-12-02 10:36:27,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:36:27,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-02 10:36:27,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:27,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-02 10:36:27,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2024-12-02 10:36:27,313 INFO L87 Difference]: Start difference. First operand 18926 states and 24340 transitions. Second operand has 24 states, 24 states have (on average 11.375) internal successors, (273), 24 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:31,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:31,366 INFO L93 Difference]: Finished difference Result 59321 states and 76461 transitions. [2024-12-02 10:36:31,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2024-12-02 10:36:31,367 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 11.375) internal successors, (273), 24 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2024-12-02 10:36:31,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:31,407 INFO L225 Difference]: With dead ends: 59321 [2024-12-02 10:36:31,407 INFO L226 Difference]: Without dead ends: 55775 [2024-12-02 10:36:31,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5636 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2506, Invalid=14006, Unknown=0, NotChecked=0, Total=16512 [2024-12-02 10:36:31,420 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 2468 mSDsluCounter, 1553 mSDsCounter, 0 mSdLazyCounter, 1696 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2468 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 1744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:31,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2468 Valid, 1677 Invalid, 1744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1696 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 10:36:31,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55775 states. [2024-12-02 10:36:31,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55775 to 18907. [2024-12-02 10:36:31,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18907 states, 18906 states have (on average 1.2862583306886703) internal successors, (24318), 18906 states have internal predecessors, (24318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:31,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18907 states to 18907 states and 24318 transitions. [2024-12-02 10:36:31,735 INFO L78 Accepts]: Start accepts. Automaton has 18907 states and 24318 transitions. Word has length 102 [2024-12-02 10:36:31,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:31,735 INFO L471 AbstractCegarLoop]: Abstraction has 18907 states and 24318 transitions. [2024-12-02 10:36:31,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 11.375) internal successors, (273), 24 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:31,735 INFO L276 IsEmpty]: Start isEmpty. Operand 18907 states and 24318 transitions. [2024-12-02 10:36:31,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-12-02 10:36:31,737 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:31,737 INFO L218 NwaCegarLoop]: trace histogram [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 10:36:31,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 10:36:31,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:31,937 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:31,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:31,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1454501220, now seen corresponding path program 1 times [2024-12-02 10:36:31,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:31,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332719217] [2024-12-02 10:36:31,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:31,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:31,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:32,421 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:32,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:32,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332719217] [2024-12-02 10:36:32,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332719217] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:36:32,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256583487] [2024-12-02 10:36:32,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:32,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:32,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:36:32,424 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:36:32,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 10:36:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:32,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 10:36:32,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:36:33,109 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:33,110 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:36:33,732 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:33,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256583487] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:36:33,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:36:33,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 10] total 29 [2024-12-02 10:36:33,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108098363] [2024-12-02 10:36:33,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:36:33,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-12-02 10:36:33,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:33,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-12-02 10:36:33,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2024-12-02 10:36:33,733 INFO L87 Difference]: Start difference. First operand 18907 states and 24318 transitions. Second operand has 29 states, 29 states have (on average 9.689655172413794) internal successors, (281), 29 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:44,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:44,304 INFO L93 Difference]: Finished difference Result 125342 states and 159793 transitions. [2024-12-02 10:36:44,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2024-12-02 10:36:44,304 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 9.689655172413794) internal successors, (281), 29 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2024-12-02 10:36:44,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:44,412 INFO L225 Difference]: With dead ends: 125342 [2024-12-02 10:36:44,413 INFO L226 Difference]: Without dead ends: 106501 [2024-12-02 10:36:44,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 221 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19334 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=7288, Invalid=42218, Unknown=0, NotChecked=0, Total=49506 [2024-12-02 10:36:44,436 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 4002 mSDsluCounter, 1639 mSDsCounter, 0 mSdLazyCounter, 2673 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4002 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 2780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 2673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:44,436 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4002 Valid, 1740 Invalid, 2780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 2673 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 10:36:44,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106501 states. [2024-12-02 10:36:45,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106501 to 71252. [2024-12-02 10:36:45,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71252 states, 71251 states have (on average 1.278045220417959) internal successors, (91062), 71251 states have internal predecessors, (91062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:45,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71252 states to 71252 states and 91062 transitions. [2024-12-02 10:36:45,284 INFO L78 Accepts]: Start accepts. Automaton has 71252 states and 91062 transitions. Word has length 102 [2024-12-02 10:36:45,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:45,284 INFO L471 AbstractCegarLoop]: Abstraction has 71252 states and 91062 transitions. [2024-12-02 10:36:45,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 9.689655172413794) internal successors, (281), 29 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:45,284 INFO L276 IsEmpty]: Start isEmpty. Operand 71252 states and 91062 transitions. [2024-12-02 10:36:45,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-12-02 10:36:45,289 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:45,289 INFO L218 NwaCegarLoop]: trace histogram [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 10:36:45,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 10:36:45,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:45,490 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:45,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:45,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1056316079, now seen corresponding path program 1 times [2024-12-02 10:36:45,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:45,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825079345] [2024-12-02 10:36:45,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:45,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:45,611 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 10:36:45,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:45,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825079345] [2024-12-02 10:36:45,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825079345] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:45,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:45,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:36:45,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920094979] [2024-12-02 10:36:45,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:45,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:36:45,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:45,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:36:45,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:36:45,612 INFO L87 Difference]: Start difference. First operand 71252 states and 91062 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:45,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:45,935 INFO L93 Difference]: Finished difference Result 128365 states and 164586 transitions. [2024-12-02 10:36:45,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:36:45,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-12-02 10:36:45,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:46,001 INFO L225 Difference]: With dead ends: 128365 [2024-12-02 10:36:46,001 INFO L226 Difference]: Without dead ends: 57231 [2024-12-02 10:36:46,041 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:36:46,042 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 82 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:46,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 103 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:46,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57231 states. [2024-12-02 10:36:46,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57231 to 57231. [2024-12-02 10:36:46,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57231 states, 57230 states have (on average 1.2705573999650532) internal successors, (72714), 57230 states have internal predecessors, (72714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:46,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57231 states to 57231 states and 72714 transitions. [2024-12-02 10:36:46,792 INFO L78 Accepts]: Start accepts. Automaton has 57231 states and 72714 transitions. Word has length 103 [2024-12-02 10:36:46,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:46,792 INFO L471 AbstractCegarLoop]: Abstraction has 57231 states and 72714 transitions. [2024-12-02 10:36:46,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:46,792 INFO L276 IsEmpty]: Start isEmpty. Operand 57231 states and 72714 transitions. [2024-12-02 10:36:46,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-12-02 10:36:46,795 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:46,795 INFO L218 NwaCegarLoop]: trace histogram [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 10:36:46,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 10:36:46,796 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:46,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:46,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1351748178, now seen corresponding path program 1 times [2024-12-02 10:36:46,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:46,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770893166] [2024-12-02 10:36:46,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:46,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:46,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:46,949 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 10:36:46,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:46,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770893166] [2024-12-02 10:36:46,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770893166] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:46,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:46,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:36:46,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202718995] [2024-12-02 10:36:46,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:46,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:36:46,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:46,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:36:46,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 10:36:46,950 INFO L87 Difference]: Start difference. First operand 57231 states and 72714 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:47,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:47,521 INFO L93 Difference]: Finished difference Result 138552 states and 175870 transitions. [2024-12-02 10:36:47,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 10:36:47,522 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-12-02 10:36:47,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:47,573 INFO L225 Difference]: With dead ends: 138552 [2024-12-02 10:36:47,573 INFO L226 Difference]: Without dead ends: 81415 [2024-12-02 10:36:47,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2024-12-02 10:36:47,592 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 369 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:47,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 451 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:36:47,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81415 states. [2024-12-02 10:36:48,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81415 to 57231. [2024-12-02 10:36:48,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57231 states, 57230 states have (on average 1.2704875065525074) internal successors, (72710), 57230 states have internal predecessors, (72710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:48,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57231 states to 57231 states and 72710 transitions. [2024-12-02 10:36:48,194 INFO L78 Accepts]: Start accepts. Automaton has 57231 states and 72710 transitions. Word has length 103 [2024-12-02 10:36:48,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:48,194 INFO L471 AbstractCegarLoop]: Abstraction has 57231 states and 72710 transitions. [2024-12-02 10:36:48,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:48,194 INFO L276 IsEmpty]: Start isEmpty. Operand 57231 states and 72710 transitions. [2024-12-02 10:36:48,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 10:36:48,197 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:48,197 INFO L218 NwaCegarLoop]: trace histogram [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 10:36:48,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 10:36:48,197 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:36:48,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:48,198 INFO L85 PathProgramCache]: Analyzing trace with hash 2021168627, now seen corresponding path program 1 times [2024-12-02 10:36:48,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:48,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648048310] [2024-12-02 10:36:48,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:48,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:48,931 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:48,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:48,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648048310] [2024-12-02 10:36:48,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648048310] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:36:48,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491852299] [2024-12-02 10:36:48,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:48,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:48,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:36:48,933 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:36:48,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 10:36:49,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:49,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 10:36:49,095 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:36:50,740 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:50,740 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:36:54,037 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:54,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491852299] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:36:54,038 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:36:54,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15, 16] total 46 [2024-12-02 10:36:54,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530761339] [2024-12-02 10:36:54,038 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:36:54,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-12-02 10:36:54,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:54,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-12-02 10:36:54,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1938, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 10:36:54,039 INFO L87 Difference]: Start difference. First operand 57231 states and 72710 transitions. Second operand has 46 states, 46 states have (on average 6.130434782608695) internal successors, (282), 46 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:38:19,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:38:19,950 INFO L93 Difference]: Finished difference Result 412174 states and 528134 transitions. [2024-12-02 10:38:19,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 632 states. [2024-12-02 10:38:19,950 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 6.130434782608695) internal successors, (282), 46 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-12-02 10:38:19,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:38:20,397 INFO L225 Difference]: With dead ends: 412174 [2024-12-02 10:38:20,397 INFO L226 Difference]: Without dead ends: 366230 [2024-12-02 10:38:20,438 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 854 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 674 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203169 ImplicationChecksByTransitivity, 73.8s TimeCoverageRelationStatistics Valid=29701, Invalid=426599, Unknown=0, NotChecked=0, Total=456300 [2024-12-02 10:38:20,439 INFO L435 NwaCegarLoop]: 347 mSDtfsCounter, 18175 mSDsluCounter, 8642 mSDsCounter, 0 mSdLazyCounter, 14256 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18175 SdHoareTripleChecker+Valid, 8989 SdHoareTripleChecker+Invalid, 14625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 14256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:38:20,439 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18175 Valid, 8989 Invalid, 14625 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [369 Valid, 14256 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2024-12-02 10:38:20,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366230 states. [2024-12-02 10:38:22,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366230 to 142015. [2024-12-02 10:38:22,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142015 states, 142014 states have (on average 1.2835988001182983) internal successors, (182289), 142014 states have internal predecessors, (182289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:38:22,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142015 states to 142015 states and 182289 transitions. [2024-12-02 10:38:22,367 INFO L78 Accepts]: Start accepts. Automaton has 142015 states and 182289 transitions. Word has length 104 [2024-12-02 10:38:22,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:38:22,367 INFO L471 AbstractCegarLoop]: Abstraction has 142015 states and 182289 transitions. [2024-12-02 10:38:22,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 6.130434782608695) internal successors, (282), 46 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:38:22,367 INFO L276 IsEmpty]: Start isEmpty. Operand 142015 states and 182289 transitions. [2024-12-02 10:38:22,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 10:38:22,372 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:38:22,372 INFO L218 NwaCegarLoop]: trace histogram [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 10:38:22,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 10:38:22,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-12-02 10:38:22,573 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:38:22,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:38:22,575 INFO L85 PathProgramCache]: Analyzing trace with hash -603462021, now seen corresponding path program 1 times [2024-12-02 10:38:22,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:38:22,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120024289] [2024-12-02 10:38:22,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:38:22,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:38:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:38:22,771 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:38:22,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:38:22,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120024289] [2024-12-02 10:38:22,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120024289] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:38:22,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673787992] [2024-12-02 10:38:22,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:38:22,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:38:22,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:38:22,773 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:38:22,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 10:38:22,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:38:22,942 INFO L256 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 10:38:22,944 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:38:23,835 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:38:23,835 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:38:24,992 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:38:24,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673787992] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:38:24,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:38:24,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 15] total 35 [2024-12-02 10:38:24,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675289925] [2024-12-02 10:38:24,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:38:24,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-12-02 10:38:24,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:38:24,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-12-02 10:38:24,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1080, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 10:38:24,994 INFO L87 Difference]: Start difference. First operand 142015 states and 182289 transitions. Second operand has 36 states, 36 states have (on average 8.333333333333334) internal successors, (300), 35 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:38:28,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:38:28,944 INFO L93 Difference]: Finished difference Result 312285 states and 400921 transitions. [2024-12-02 10:38:28,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-12-02 10:38:28,944 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 8.333333333333334) internal successors, (300), 35 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-12-02 10:38:28,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:38:29,210 INFO L225 Difference]: With dead ends: 312285 [2024-12-02 10:38:29,211 INFO L226 Difference]: Without dead ends: 277423 [2024-12-02 10:38:29,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3030 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1987, Invalid=8113, Unknown=0, NotChecked=0, Total=10100 [2024-12-02 10:38:29,266 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 2755 mSDsluCounter, 2049 mSDsCounter, 0 mSdLazyCounter, 2336 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2755 SdHoareTripleChecker+Valid, 2181 SdHoareTripleChecker+Invalid, 2419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 2336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:38:29,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2755 Valid, 2181 Invalid, 2419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 2336 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 10:38:29,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277423 states. [2024-12-02 10:38:30,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277423 to 150209. [2024-12-02 10:38:30,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150209 states, 150208 states have (on average 1.2834402961227098) internal successors, (192783), 150208 states have internal predecessors, (192783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:38:31,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150209 states to 150209 states and 192783 transitions. [2024-12-02 10:38:31,220 INFO L78 Accepts]: Start accepts. Automaton has 150209 states and 192783 transitions. Word has length 105 [2024-12-02 10:38:31,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:38:31,220 INFO L471 AbstractCegarLoop]: Abstraction has 150209 states and 192783 transitions. [2024-12-02 10:38:31,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 8.333333333333334) internal successors, (300), 35 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:38:31,221 INFO L276 IsEmpty]: Start isEmpty. Operand 150209 states and 192783 transitions. [2024-12-02 10:38:31,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 10:38:31,226 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:38:31,226 INFO L218 NwaCegarLoop]: trace histogram [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 10:38:31,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-12-02 10:38:31,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-12-02 10:38:31,427 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:38:31,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:38:31,427 INFO L85 PathProgramCache]: Analyzing trace with hash -753187950, now seen corresponding path program 1 times [2024-12-02 10:38:31,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:38:31,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364499234] [2024-12-02 10:38:31,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:38:31,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:38:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:38:32,139 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 10:38:32,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:38:32,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364499234] [2024-12-02 10:38:32,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364499234] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:38:32,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:38:32,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 10:38:32,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513891693] [2024-12-02 10:38:32,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:38:32,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 10:38:32,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:38:32,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 10:38:32,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-12-02 10:38:32,141 INFO L87 Difference]: Start difference. First operand 150209 states and 192783 transitions. Second operand has 16 states, 16 states have (on average 6.125) internal successors, (98), 16 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:38:33,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:38:33,221 INFO L93 Difference]: Finished difference Result 209767 states and 269458 transitions. [2024-12-02 10:38:33,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 10:38:33,222 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.125) internal successors, (98), 16 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-12-02 10:38:33,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:38:33,359 INFO L225 Difference]: With dead ends: 209767 [2024-12-02 10:38:33,359 INFO L226 Difference]: Without dead ends: 163584 [2024-12-02 10:38:33,399 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=154, Invalid=602, Unknown=0, NotChecked=0, Total=756 [2024-12-02 10:38:33,400 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 635 mSDsluCounter, 1269 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 1469 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:38:33,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 1469 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 10:38:33,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163584 states. [2024-12-02 10:38:34,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163584 to 136392. [2024-12-02 10:38:34,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136392 states, 136391 states have (on average 1.2837137347772214) internal successors, (175087), 136391 states have internal predecessors, (175087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:38:34,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136392 states to 136392 states and 175087 transitions. [2024-12-02 10:38:34,949 INFO L78 Accepts]: Start accepts. Automaton has 136392 states and 175087 transitions. Word has length 105 [2024-12-02 10:38:34,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:38:34,950 INFO L471 AbstractCegarLoop]: Abstraction has 136392 states and 175087 transitions. [2024-12-02 10:38:34,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.125) internal successors, (98), 16 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:38:34,950 INFO L276 IsEmpty]: Start isEmpty. Operand 136392 states and 175087 transitions. [2024-12-02 10:38:34,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 10:38:34,956 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:38:34,956 INFO L218 NwaCegarLoop]: trace histogram [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 10:38:34,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-02 10:38:34,957 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:38:34,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:38:34,957 INFO L85 PathProgramCache]: Analyzing trace with hash 2010677039, now seen corresponding path program 1 times [2024-12-02 10:38:34,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:38:34,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988188888] [2024-12-02 10:38:34,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:38:34,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:38:34,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:38:35,351 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:38:35,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:38:35,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988188888] [2024-12-02 10:38:35,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988188888] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:38:35,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109032424] [2024-12-02 10:38:35,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:38:35,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:38:35,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:38:35,353 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:38:35,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 10:38:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:38:35,512 INFO L256 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 10:38:35,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:38:36,609 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:38:36,609 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:38:37,271 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:38:37,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109032424] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:38:37,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:38:37,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 12] total 38 [2024-12-02 10:38:37,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565576712] [2024-12-02 10:38:37,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:38:37,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-12-02 10:38:37,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:38:37,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-12-02 10:38:37,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=1280, Unknown=0, NotChecked=0, Total=1406 [2024-12-02 10:38:37,272 INFO L87 Difference]: Start difference. First operand 136392 states and 175087 transitions. Second operand has 38 states, 38 states have (on average 7.921052631578948) internal successors, (301), 38 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:38:51,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:38:51,831 INFO L93 Difference]: Finished difference Result 354661 states and 448375 transitions. [2024-12-02 10:38:51,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2024-12-02 10:38:51,831 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 7.921052631578948) internal successors, (301), 38 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-12-02 10:38:51,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:38:52,115 INFO L225 Difference]: With dead ends: 354661 [2024-12-02 10:38:52,115 INFO L226 Difference]: Without dead ends: 294606 [2024-12-02 10:38:52,183 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16551 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=7363, Invalid=37793, Unknown=0, NotChecked=0, Total=45156 [2024-12-02 10:38:52,184 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 4577 mSDsluCounter, 2444 mSDsCounter, 0 mSdLazyCounter, 4021 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4577 SdHoareTripleChecker+Valid, 2575 SdHoareTripleChecker+Invalid, 4134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 4021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:38:52,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4577 Valid, 2575 Invalid, 4134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 4021 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 10:38:52,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294606 states. [2024-12-02 10:38:54,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294606 to 169426. [2024-12-02 10:38:54,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169426 states, 169425 states have (on average 1.2844916629777188) internal successors, (217625), 169425 states have internal predecessors, (217625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:38:54,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169426 states to 169426 states and 217625 transitions. [2024-12-02 10:38:54,483 INFO L78 Accepts]: Start accepts. Automaton has 169426 states and 217625 transitions. Word has length 106 [2024-12-02 10:38:54,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:38:54,484 INFO L471 AbstractCegarLoop]: Abstraction has 169426 states and 217625 transitions. [2024-12-02 10:38:54,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 7.921052631578948) internal successors, (301), 38 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:38:54,484 INFO L276 IsEmpty]: Start isEmpty. Operand 169426 states and 217625 transitions. [2024-12-02 10:38:54,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 10:38:54,488 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:38:54,488 INFO L218 NwaCegarLoop]: trace histogram [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 10:38:54,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 10:38:54,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-12-02 10:38:54,689 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:38:54,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:38:54,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1738506194, now seen corresponding path program 1 times [2024-12-02 10:38:54,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:38:54,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304972670] [2024-12-02 10:38:54,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:38:54,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:38:54,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:38:56,373 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:38:56,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:38:56,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304972670] [2024-12-02 10:38:56,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304972670] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:38:56,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890512283] [2024-12-02 10:38:56,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:38:56,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:38:56,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:38:56,375 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:38:56,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 10:38:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:38:56,540 INFO L256 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-12-02 10:38:56,543 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:38:59,660 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:38:59,660 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:39:03,243 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:39:03,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890512283] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:39:03,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:39:03,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 27, 22] total 67 [2024-12-02 10:39:03,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839009319] [2024-12-02 10:39:03,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:39:03,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-12-02 10:39:03,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:39:03,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-12-02 10:39:03,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=368, Invalid=4054, Unknown=0, NotChecked=0, Total=4422 [2024-12-02 10:39:03,246 INFO L87 Difference]: Start difference. First operand 169426 states and 217625 transitions. Second operand has 67 states, 67 states have (on average 4.417910447761194) internal successors, (296), 67 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:43:17,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:43:17,430 INFO L93 Difference]: Finished difference Result 589727 states and 751671 transitions. [2024-12-02 10:43:17,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1139 states. [2024-12-02 10:43:17,431 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 4.417910447761194) internal successors, (296), 67 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-12-02 10:43:17,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:43:17,925 INFO L225 Difference]: With dead ends: 589727 [2024-12-02 10:43:17,925 INFO L226 Difference]: Without dead ends: 530408 [2024-12-02 10:43:18,029 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1366 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 1196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676089 ImplicationChecksByTransitivity, 243.9s TimeCoverageRelationStatistics Valid=116353, Invalid=1317653, Unknown=0, NotChecked=0, Total=1434006 [2024-12-02 10:43:18,029 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 8940 mSDsluCounter, 12098 mSDsCounter, 0 mSdLazyCounter, 11286 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8940 SdHoareTripleChecker+Valid, 12289 SdHoareTripleChecker+Invalid, 11393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 11286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:43:18,030 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8940 Valid, 12289 Invalid, 11393 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [107 Valid, 11286 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2024-12-02 10:43:18,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530408 states. [2024-12-02 10:43:21,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530408 to 244025. [2024-12-02 10:43:21,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244025 states, 244024 states have (on average 1.2881765727961185) internal successors, (314346), 244024 states have internal predecessors, (314346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:43:21,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244025 states to 244025 states and 314346 transitions. [2024-12-02 10:43:21,623 INFO L78 Accepts]: Start accepts. Automaton has 244025 states and 314346 transitions. Word has length 106 [2024-12-02 10:43:21,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:43:21,623 INFO L471 AbstractCegarLoop]: Abstraction has 244025 states and 314346 transitions. [2024-12-02 10:43:21,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 4.417910447761194) internal successors, (296), 67 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:43:21,623 INFO L276 IsEmpty]: Start isEmpty. Operand 244025 states and 314346 transitions. [2024-12-02 10:43:21,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 10:43:21,628 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:43:21,628 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 10:43:21,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-12-02 10:43:21,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-12-02 10:43:21,829 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:43:21,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:43:21,832 INFO L85 PathProgramCache]: Analyzing trace with hash 261993881, now seen corresponding path program 1 times [2024-12-02 10:43:21,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:43:21,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345327396] [2024-12-02 10:43:21,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:43:21,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:43:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:43:21,886 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:43:21,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:43:21,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345327396] [2024-12-02 10:43:21,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345327396] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:43:21,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:43:21,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:43:21,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818972777] [2024-12-02 10:43:21,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:43:21,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:43:21,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:43:21,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:43:21,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:43:21,887 INFO L87 Difference]: Start difference. First operand 244025 states and 314346 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:43:22,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:43:22,716 INFO L93 Difference]: Finished difference Result 482727 states and 621860 transitions. [2024-12-02 10:43:22,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:43:22,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-12-02 10:43:22,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:43:22,937 INFO L225 Difference]: With dead ends: 482727 [2024-12-02 10:43:22,937 INFO L226 Difference]: Without dead ends: 238823 [2024-12-02 10:43:23,032 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:43:23,033 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 59 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:43:23,033 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 226 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:43:23,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238823 states. [2024-12-02 10:43:25,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238823 to 229014. [2024-12-02 10:43:25,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229014 states, 229013 states have (on average 1.2662206948950496) internal successors, (289981), 229013 states have internal predecessors, (289981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:43:26,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229014 states to 229014 states and 289981 transitions. [2024-12-02 10:43:26,180 INFO L78 Accepts]: Start accepts. Automaton has 229014 states and 289981 transitions. Word has length 106 [2024-12-02 10:43:26,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:43:26,181 INFO L471 AbstractCegarLoop]: Abstraction has 229014 states and 289981 transitions. [2024-12-02 10:43:26,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:43:26,181 INFO L276 IsEmpty]: Start isEmpty. Operand 229014 states and 289981 transitions. [2024-12-02 10:43:26,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 10:43:26,187 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:43:26,187 INFO L218 NwaCegarLoop]: trace histogram [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 10:43:26,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-12-02 10:43:26,188 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:43:26,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:43:26,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1335936665, now seen corresponding path program 1 times [2024-12-02 10:43:26,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:43:26,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449000462] [2024-12-02 10:43:26,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:43:26,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:43:26,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:43:26,897 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:43:26,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:43:26,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449000462] [2024-12-02 10:43:26,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449000462] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:43:26,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047017265] [2024-12-02 10:43:26,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:43:26,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:43:26,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:43:26,899 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:43:26,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 10:43:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:43:27,086 INFO L256 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-12-02 10:43:27,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:43:29,389 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:43:29,389 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:43:32,900 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:43:32,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047017265] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:43:32,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:43:32,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 22, 20] total 54 [2024-12-02 10:43:32,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297254601] [2024-12-02 10:43:32,901 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:43:32,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-12-02 10:43:32,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:43:32,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-12-02 10:43:32,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=2630, Unknown=0, NotChecked=0, Total=2862 [2024-12-02 10:43:32,902 INFO L87 Difference]: Start difference. First operand 229014 states and 289981 transitions. Second operand has 54 states, 54 states have (on average 5.2592592592592595) internal successors, (284), 54 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:43:48,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:43:48,671 INFO L93 Difference]: Finished difference Result 366139 states and 461445 transitions. [2024-12-02 10:43:48,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2024-12-02 10:43:48,672 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 5.2592592592592595) internal successors, (284), 54 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-12-02 10:43:48,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:43:48,944 INFO L225 Difference]: With dead ends: 366139 [2024-12-02 10:43:48,944 INFO L226 Difference]: Without dead ends: 323461 [2024-12-02 10:43:48,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 206 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13502 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=4554, Invalid=38502, Unknown=0, NotChecked=0, Total=43056 [2024-12-02 10:43:48,984 INFO L435 NwaCegarLoop]: 376 mSDtfsCounter, 4308 mSDsluCounter, 9857 mSDsCounter, 0 mSdLazyCounter, 6070 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4308 SdHoareTripleChecker+Valid, 10233 SdHoareTripleChecker+Invalid, 6117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 6070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:43:48,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4308 Valid, 10233 Invalid, 6117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 6070 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 10:43:49,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323461 states. [2024-12-02 10:43:51,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323461 to 253435. [2024-12-02 10:43:51,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253435 states, 253434 states have (on average 1.2656865298263058) internal successors, (320768), 253434 states have internal predecessors, (320768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:43:51,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253435 states to 253435 states and 320768 transitions. [2024-12-02 10:43:51,676 INFO L78 Accepts]: Start accepts. Automaton has 253435 states and 320768 transitions. Word has length 106 [2024-12-02 10:43:51,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:43:51,676 INFO L471 AbstractCegarLoop]: Abstraction has 253435 states and 320768 transitions. [2024-12-02 10:43:51,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 5.2592592592592595) internal successors, (284), 54 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:43:51,676 INFO L276 IsEmpty]: Start isEmpty. Operand 253435 states and 320768 transitions. [2024-12-02 10:43:51,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 10:43:51,682 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:43:51,682 INFO L218 NwaCegarLoop]: trace histogram [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 10:43:51,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 10:43:51,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:43:51,883 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:43:51,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:43:51,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1526603095, now seen corresponding path program 1 times [2024-12-02 10:43:51,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:43:51,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577728305] [2024-12-02 10:43:51,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:43:51,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:43:51,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:43:52,915 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:43:52,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:43:52,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577728305] [2024-12-02 10:43:52,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577728305] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:43:52,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574573516] [2024-12-02 10:43:52,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:43:52,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:43:52,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:43:52,917 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:43:52,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 10:43:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:43:53,097 INFO L256 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-12-02 10:43:53,099 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:43:55,096 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:43:55,096 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:43:56,837 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:43:56,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574573516] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:43:56,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:43:56,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 18] total 51 [2024-12-02 10:43:56,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630417769] [2024-12-02 10:43:56,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:43:56,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-12-02 10:43:56,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:43:56,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-12-02 10:43:56,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=2339, Unknown=0, NotChecked=0, Total=2550 [2024-12-02 10:43:56,839 INFO L87 Difference]: Start difference. First operand 253435 states and 320768 transitions. Second operand has 51 states, 51 states have (on average 5.450980392156863) internal successors, (278), 51 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:44:02,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:44:02,831 INFO L93 Difference]: Finished difference Result 366270 states and 464484 transitions. [2024-12-02 10:44:02,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2024-12-02 10:44:02,832 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 5.450980392156863) internal successors, (278), 51 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-12-02 10:44:02,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:44:03,150 INFO L225 Difference]: With dead ends: 366270 [2024-12-02 10:44:03,150 INFO L226 Difference]: Without dead ends: 293764 [2024-12-02 10:44:03,229 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 182 SyntacticMatches, 1 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3677 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1350, Invalid=12692, Unknown=0, NotChecked=0, Total=14042 [2024-12-02 10:44:03,230 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 1870 mSDsluCounter, 5775 mSDsCounter, 0 mSdLazyCounter, 3315 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1870 SdHoareTripleChecker+Valid, 5991 SdHoareTripleChecker+Invalid, 3334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 3315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:44:03,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1870 Valid, 5991 Invalid, 3334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 3315 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 10:44:03,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293764 states. [2024-12-02 10:44:05,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293764 to 252091. [2024-12-02 10:44:05,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252091 states, 252090 states have (on average 1.2650878654448807) internal successors, (318916), 252090 states have internal predecessors, (318916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:44:06,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252091 states to 252091 states and 318916 transitions. [2024-12-02 10:44:06,113 INFO L78 Accepts]: Start accepts. Automaton has 252091 states and 318916 transitions. Word has length 107 [2024-12-02 10:44:06,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:44:06,113 INFO L471 AbstractCegarLoop]: Abstraction has 252091 states and 318916 transitions. [2024-12-02 10:44:06,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 5.450980392156863) internal successors, (278), 51 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:44:06,113 INFO L276 IsEmpty]: Start isEmpty. Operand 252091 states and 318916 transitions. [2024-12-02 10:44:06,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 10:44:06,118 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:44:06,118 INFO L218 NwaCegarLoop]: trace histogram [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 10:44:06,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 10:44:06,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:44:06,319 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:44:06,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:44:06,319 INFO L85 PathProgramCache]: Analyzing trace with hash 268364486, now seen corresponding path program 1 times [2024-12-02 10:44:06,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:44:06,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430514789] [2024-12-02 10:44:06,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:44:06,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:44:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:44:06,901 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:44:06,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:44:06,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430514789] [2024-12-02 10:44:06,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430514789] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:44:06,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225318865] [2024-12-02 10:44:06,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:44:06,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:44:06,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:44:06,903 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:44:06,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 10:44:07,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:44:07,107 INFO L256 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 10:44:07,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:44:08,261 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:44:08,261 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:44:09,099 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:44:09,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225318865] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:44:09,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:44:09,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 12] total 34 [2024-12-02 10:44:09,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683183481] [2024-12-02 10:44:09,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:44:09,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-12-02 10:44:09,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:44:09,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-12-02 10:44:09,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=999, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 10:44:09,101 INFO L87 Difference]: Start difference. First operand 252091 states and 318916 transitions. Second operand has 34 states, 34 states have (on average 8.941176470588236) internal successors, (304), 34 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:44:10,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:44:10,965 INFO L93 Difference]: Finished difference Result 333288 states and 421709 transitions. [2024-12-02 10:44:10,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 10:44:10,966 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 8.941176470588236) internal successors, (304), 34 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-12-02 10:44:10,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:44:11,308 INFO L225 Difference]: With dead ends: 333288 [2024-12-02 10:44:11,308 INFO L226 Difference]: Without dead ends: 290586 [2024-12-02 10:44:11,358 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=468, Invalid=2394, Unknown=0, NotChecked=0, Total=2862 [2024-12-02 10:44:11,358 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 911 mSDsluCounter, 3325 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 3562 SdHoareTripleChecker+Invalid, 1101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:44:11,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [911 Valid, 3562 Invalid, 1101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:44:11,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290586 states. [2024-12-02 10:44:13,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290586 to 275907. [2024-12-02 10:44:13,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275907 states, 275906 states have (on average 1.26333243930904) internal successors, (348561), 275906 states have internal predecessors, (348561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:44:14,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275907 states to 275907 states and 348561 transitions. [2024-12-02 10:44:14,125 INFO L78 Accepts]: Start accepts. Automaton has 275907 states and 348561 transitions. Word has length 107 [2024-12-02 10:44:14,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:44:14,125 INFO L471 AbstractCegarLoop]: Abstraction has 275907 states and 348561 transitions. [2024-12-02 10:44:14,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 8.941176470588236) internal successors, (304), 34 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:44:14,125 INFO L276 IsEmpty]: Start isEmpty. Operand 275907 states and 348561 transitions. [2024-12-02 10:44:14,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 10:44:14,132 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:44:14,132 INFO L218 NwaCegarLoop]: trace histogram [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 10:44:14,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 10:44:14,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:44:14,333 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:44:14,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:44:14,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1647540938, now seen corresponding path program 1 times [2024-12-02 10:44:14,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:44:14,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631696146] [2024-12-02 10:44:14,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:44:14,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:44:14,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:44:14,868 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 10:44:14,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:44:14,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631696146] [2024-12-02 10:44:14,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631696146] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:44:14,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413797829] [2024-12-02 10:44:14,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:44:14,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:44:14,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:44:14,871 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:44:14,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 10:44:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:44:15,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 10:44:15,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:44:15,195 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 10:44:15,195 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:44:15,549 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 10:44:15,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413797829] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:44:15,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:44:15,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 11 [2024-12-02 10:44:15,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048783705] [2024-12-02 10:44:15,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:44:15,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 10:44:15,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:44:15,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 10:44:15,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:44:15,550 INFO L87 Difference]: Start difference. First operand 275907 states and 348561 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:44:17,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:44:17,144 INFO L93 Difference]: Finished difference Result 714100 states and 901474 transitions. [2024-12-02 10:44:17,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:44:17,145 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-12-02 10:44:17,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:44:17,646 INFO L225 Difference]: With dead ends: 714100 [2024-12-02 10:44:17,646 INFO L226 Difference]: Without dead ends: 438321 [2024-12-02 10:44:17,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:44:17,707 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 400 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:44:17,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 669 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:44:17,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438321 states. [2024-12-02 10:44:21,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438321 to 340083. [2024-12-02 10:44:21,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340083 states, 340082 states have (on average 1.2630336213030975) internal successors, (429535), 340082 states have internal predecessors, (429535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:44:21,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340083 states to 340083 states and 429535 transitions. [2024-12-02 10:44:21,719 INFO L78 Accepts]: Start accepts. Automaton has 340083 states and 429535 transitions. Word has length 107 [2024-12-02 10:44:21,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:44:21,720 INFO L471 AbstractCegarLoop]: Abstraction has 340083 states and 429535 transitions. [2024-12-02 10:44:21,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 11 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:44:21,720 INFO L276 IsEmpty]: Start isEmpty. Operand 340083 states and 429535 transitions. [2024-12-02 10:44:21,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 10:44:21,725 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:44:21,725 INFO L218 NwaCegarLoop]: trace histogram [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 10:44:21,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 10:44:21,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:44:21,925 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:44:21,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:44:21,926 INFO L85 PathProgramCache]: Analyzing trace with hash -68076810, now seen corresponding path program 1 times [2024-12-02 10:44:21,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:44:21,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818485128] [2024-12-02 10:44:21,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:44:21,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:44:22,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:44:23,666 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:44:23,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:44:23,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818485128] [2024-12-02 10:44:23,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818485128] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:44:23,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178073409] [2024-12-02 10:44:23,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:44:23,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:44:23,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:44:23,668 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:44:23,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 10:44:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:44:23,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-02 10:44:23,883 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:44:26,432 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:44:26,432 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:44:28,060 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:44:28,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178073409] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:44:28,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:44:28,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 18, 17] total 53 [2024-12-02 10:44:28,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468644925] [2024-12-02 10:44:28,060 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:44:28,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-12-02 10:44:28,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:44:28,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-12-02 10:44:28,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=2550, Unknown=0, NotChecked=0, Total=2756 [2024-12-02 10:44:28,061 INFO L87 Difference]: Start difference. First operand 340083 states and 429535 transitions. Second operand has 53 states, 53 states have (on average 5.471698113207547) internal successors, (290), 53 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:44:47,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:44:47,719 INFO L93 Difference]: Finished difference Result 555476 states and 701055 transitions. [2024-12-02 10:44:47,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2024-12-02 10:44:47,720 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 5.471698113207547) internal successors, (290), 53 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-12-02 10:44:47,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:44:48,233 INFO L225 Difference]: With dead ends: 555476 [2024-12-02 10:44:48,233 INFO L226 Difference]: Without dead ends: 490607 [2024-12-02 10:44:48,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 183 SyntacticMatches, 1 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8541 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=4535, Invalid=26971, Unknown=0, NotChecked=0, Total=31506 [2024-12-02 10:44:48,355 INFO L435 NwaCegarLoop]: 379 mSDtfsCounter, 3815 mSDsluCounter, 9410 mSDsCounter, 0 mSdLazyCounter, 5319 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3815 SdHoareTripleChecker+Valid, 9789 SdHoareTripleChecker+Invalid, 5356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 5319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:44:48,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3815 Valid, 9789 Invalid, 5356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 5319 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-12-02 10:44:48,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490607 states. [2024-12-02 10:44:52,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490607 to 374477. [2024-12-02 10:44:52,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374477 states, 374476 states have (on average 1.2624680887426698) internal successors, (472764), 374476 states have internal predecessors, (472764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:44:53,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374477 states to 374477 states and 472764 transitions. [2024-12-02 10:44:53,611 INFO L78 Accepts]: Start accepts. Automaton has 374477 states and 472764 transitions. Word has length 107 [2024-12-02 10:44:53,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:44:53,612 INFO L471 AbstractCegarLoop]: Abstraction has 374477 states and 472764 transitions. [2024-12-02 10:44:53,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 5.471698113207547) internal successors, (290), 53 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:44:53,612 INFO L276 IsEmpty]: Start isEmpty. Operand 374477 states and 472764 transitions. [2024-12-02 10:44:53,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 10:44:53,617 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:44:53,617 INFO L218 NwaCegarLoop]: trace histogram [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 10:44:53,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 10:44:53,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-12-02 10:44:53,821 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:44:53,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:44:53,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1297822620, now seen corresponding path program 1 times [2024-12-02 10:44:53,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:44:53,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944616439] [2024-12-02 10:44:53,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:44:53,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:44:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:44:54,720 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:44:54,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:44:54,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944616439] [2024-12-02 10:44:54,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944616439] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:44:54,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365372228] [2024-12-02 10:44:54,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:44:54,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:44:54,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:44:54,723 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:44:54,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 10:44:54,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:44:54,922 INFO L256 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-12-02 10:44:54,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:44:56,684 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:44:56,684 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:44:58,563 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:44:58,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365372228] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:44:58,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:44:58,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 20, 20] total 53 [2024-12-02 10:44:58,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300688556] [2024-12-02 10:44:58,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:44:58,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-12-02 10:44:58,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:44:58,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-12-02 10:44:58,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=284, Invalid=2472, Unknown=0, NotChecked=0, Total=2756 [2024-12-02 10:44:58,565 INFO L87 Difference]: Start difference. First operand 374477 states and 472764 transitions. Second operand has 53 states, 53 states have (on average 5.622641509433962) internal successors, (298), 53 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:45:01,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:45:01,685 INFO L93 Difference]: Finished difference Result 542722 states and 685587 transitions. [2024-12-02 10:45:01,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-12-02 10:45:01,686 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 5.622641509433962) internal successors, (298), 53 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-12-02 10:45:01,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:45:02,294 INFO L225 Difference]: With dead ends: 542722 [2024-12-02 10:45:02,294 INFO L226 Difference]: Without dead ends: 482714 [2024-12-02 10:45:02,410 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 178 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1283 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=627, Invalid=4485, Unknown=0, NotChecked=0, Total=5112 [2024-12-02 10:45:02,411 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 1096 mSDsluCounter, 4645 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 4876 SdHoareTripleChecker+Invalid, 2282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:45:02,411 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 4876 Invalid, 2282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 10:45:02,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482714 states. [2024-12-02 10:45:06,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482714 to 364844. [2024-12-02 10:45:06,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364844 states, 364843 states have (on average 1.262559511899639) internal successors, (460636), 364843 states have internal predecessors, (460636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:45:07,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364844 states to 364844 states and 460636 transitions. [2024-12-02 10:45:07,352 INFO L78 Accepts]: Start accepts. Automaton has 364844 states and 460636 transitions. Word has length 107 [2024-12-02 10:45:07,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:45:07,352 INFO L471 AbstractCegarLoop]: Abstraction has 364844 states and 460636 transitions. [2024-12-02 10:45:07,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 5.622641509433962) internal successors, (298), 53 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:45:07,352 INFO L276 IsEmpty]: Start isEmpty. Operand 364844 states and 460636 transitions. [2024-12-02 10:45:07,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 10:45:07,356 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:45:07,356 INFO L218 NwaCegarLoop]: trace histogram [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 10:45:07,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 10:45:07,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-12-02 10:45:07,556 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:45:07,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:45:07,557 INFO L85 PathProgramCache]: Analyzing trace with hash 154966578, now seen corresponding path program 1 times [2024-12-02 10:45:07,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:45:07,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067438442] [2024-12-02 10:45:07,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:45:07,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:45:07,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:45:07,606 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 10:45:07,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:45:07,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067438442] [2024-12-02 10:45:07,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067438442] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:45:07,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:45:07,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:45:07,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031712131] [2024-12-02 10:45:07,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:45:07,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:45:07,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:45:07,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:45:07,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:45:07,607 INFO L87 Difference]: Start difference. First operand 364844 states and 460636 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:45:09,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:45:09,294 INFO L93 Difference]: Finished difference Result 611863 states and 772522 transitions. [2024-12-02 10:45:09,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:45:09,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2024-12-02 10:45:09,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:45:09,625 INFO L225 Difference]: With dead ends: 611863 [2024-12-02 10:45:09,625 INFO L226 Difference]: Without dead ends: 247165 [2024-12-02 10:45:09,740 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:45:09,741 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 81 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:45:09,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 118 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:45:09,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247165 states. [2024-12-02 10:45:12,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247165 to 247165. [2024-12-02 10:45:12,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247165 states, 247164 states have (on average 1.240087553203541) internal successors, (306505), 247164 states have internal predecessors, (306505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:45:12,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247165 states to 247165 states and 306505 transitions. [2024-12-02 10:45:12,944 INFO L78 Accepts]: Start accepts. Automaton has 247165 states and 306505 transitions. Word has length 108 [2024-12-02 10:45:12,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:45:12,945 INFO L471 AbstractCegarLoop]: Abstraction has 247165 states and 306505 transitions. [2024-12-02 10:45:12,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:45:12,945 INFO L276 IsEmpty]: Start isEmpty. Operand 247165 states and 306505 transitions. [2024-12-02 10:45:12,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 10:45:12,946 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:45:12,946 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 10:45:12,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-12-02 10:45:12,947 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:45:12,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:45:12,947 INFO L85 PathProgramCache]: Analyzing trace with hash 499721043, now seen corresponding path program 1 times [2024-12-02 10:45:12,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:45:12,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274902819] [2024-12-02 10:45:12,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:45:12,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:45:12,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:45:13,004 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:45:13,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:45:13,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274902819] [2024-12-02 10:45:13,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274902819] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:45:13,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:45:13,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:45:13,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45633715] [2024-12-02 10:45:13,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:45:13,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:45:13,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:45:13,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:45:13,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:45:13,005 INFO L87 Difference]: Start difference. First operand 247165 states and 306505 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:45:13,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:45:13,703 INFO L93 Difference]: Finished difference Result 339793 states and 421142 transitions. [2024-12-02 10:45:13,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:45:13,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2024-12-02 10:45:13,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:45:13,792 INFO L225 Difference]: With dead ends: 339793 [2024-12-02 10:45:13,792 INFO L226 Difference]: Without dead ends: 92908 [2024-12-02 10:45:13,862 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:45:13,862 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 46 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:45:13,862 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 215 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:45:13,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92908 states. [2024-12-02 10:45:14,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92908 to 89109. [2024-12-02 10:45:14,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89109 states, 89108 states have (on average 1.2030008528976075) internal successors, (107197), 89108 states have internal predecessors, (107197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:45:14,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89109 states to 89109 states and 107197 transitions. [2024-12-02 10:45:14,895 INFO L78 Accepts]: Start accepts. Automaton has 89109 states and 107197 transitions. Word has length 108 [2024-12-02 10:45:14,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:45:14,895 INFO L471 AbstractCegarLoop]: Abstraction has 89109 states and 107197 transitions. [2024-12-02 10:45:14,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:45:14,895 INFO L276 IsEmpty]: Start isEmpty. Operand 89109 states and 107197 transitions. [2024-12-02 10:45:14,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 10:45:14,896 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:45:14,897 INFO L218 NwaCegarLoop]: trace histogram [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 10:45:14,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-12-02 10:45:14,897 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:45:14,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:45:14,897 INFO L85 PathProgramCache]: Analyzing trace with hash -2141755594, now seen corresponding path program 1 times [2024-12-02 10:45:14,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:45:14,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094287486] [2024-12-02 10:45:14,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:45:14,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:45:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:45:15,630 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:45:15,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:45:15,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094287486] [2024-12-02 10:45:15,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094287486] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:45:15,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874194513] [2024-12-02 10:45:15,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:45:15,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:45:15,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:45:15,632 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:45:15,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 10:45:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:45:15,833 INFO L256 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 10:45:15,835 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:45:16,909 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:45:16,909 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:45:17,679 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:45:17,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874194513] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:45:17,679 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:45:17,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 14, 12] total 36 [2024-12-02 10:45:17,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136208402] [2024-12-02 10:45:17,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:45:17,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-12-02 10:45:17,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:45:17,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-12-02 10:45:17,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=1134, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 10:45:17,680 INFO L87 Difference]: Start difference. First operand 89109 states and 107197 transitions. Second operand has 36 states, 36 states have (on average 7.333333333333333) internal successors, (264), 36 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:45:20,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:45:20,048 INFO L93 Difference]: Finished difference Result 121771 states and 146461 transitions. [2024-12-02 10:45:20,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-12-02 10:45:20,049 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 7.333333333333333) internal successors, (264), 36 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2024-12-02 10:45:20,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:45:20,147 INFO L225 Difference]: With dead ends: 121771 [2024-12-02 10:45:20,147 INFO L226 Difference]: Without dead ends: 105523 [2024-12-02 10:45:20,172 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 732 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=619, Invalid=3413, Unknown=0, NotChecked=0, Total=4032 [2024-12-02 10:45:20,172 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 1045 mSDsluCounter, 4108 mSDsCounter, 0 mSdLazyCounter, 1685 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 4338 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:45:20,173 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1045 Valid, 4338 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1685 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 10:45:20,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105523 states. [2024-12-02 10:45:20,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105523 to 96898. [2024-12-02 10:45:20,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96898 states, 96897 states have (on average 1.2021115204805102) internal successors, (116481), 96897 states have internal predecessors, (116481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:45:21,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96898 states to 96898 states and 116481 transitions. [2024-12-02 10:45:21,163 INFO L78 Accepts]: Start accepts. Automaton has 96898 states and 116481 transitions. Word has length 108 [2024-12-02 10:45:21,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:45:21,163 INFO L471 AbstractCegarLoop]: Abstraction has 96898 states and 116481 transitions. [2024-12-02 10:45:21,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 7.333333333333333) internal successors, (264), 36 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:45:21,163 INFO L276 IsEmpty]: Start isEmpty. Operand 96898 states and 116481 transitions. [2024-12-02 10:45:21,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 10:45:21,164 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:45:21,164 INFO L218 NwaCegarLoop]: trace histogram [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 10:45:21,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-12-02 10:45:21,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-12-02 10:45:21,365 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:45:21,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:45:21,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1466990471, now seen corresponding path program 1 times [2024-12-02 10:45:21,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:45:21,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273942549] [2024-12-02 10:45:21,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:45:21,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:45:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:45:21,412 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 10:45:21,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:45:21,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273942549] [2024-12-02 10:45:21,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273942549] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:45:21,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:45:21,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:45:21,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676297111] [2024-12-02 10:45:21,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:45:21,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:45:21,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:45:21,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:45:21,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:45:21,413 INFO L87 Difference]: Start difference. First operand 96898 states and 116481 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:45:21,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:45:21,672 INFO L93 Difference]: Finished difference Result 153527 states and 184798 transitions. [2024-12-02 10:45:21,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:45:21,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2024-12-02 10:45:21,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:45:21,715 INFO L225 Difference]: With dead ends: 153527 [2024-12-02 10:45:21,715 INFO L226 Difference]: Without dead ends: 56830 [2024-12-02 10:45:21,743 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:45:21,743 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 81 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:45:21,743 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 145 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:45:21,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56830 states. [2024-12-02 10:45:22,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56830 to 56830. [2024-12-02 10:45:22,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56830 states, 56829 states have (on average 1.1766879586126802) internal successors, (66870), 56829 states have internal predecessors, (66870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:45:22,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56830 states to 56830 states and 66870 transitions. [2024-12-02 10:45:22,300 INFO L78 Accepts]: Start accepts. Automaton has 56830 states and 66870 transitions. Word has length 108 [2024-12-02 10:45:22,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:45:22,300 INFO L471 AbstractCegarLoop]: Abstraction has 56830 states and 66870 transitions. [2024-12-02 10:45:22,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:45:22,300 INFO L276 IsEmpty]: Start isEmpty. Operand 56830 states and 66870 transitions. [2024-12-02 10:45:22,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 10:45:22,301 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:45:22,302 INFO L218 NwaCegarLoop]: trace histogram [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 10:45:22,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-12-02 10:45:22,302 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:45:22,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:45:22,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1766272964, now seen corresponding path program 1 times [2024-12-02 10:45:22,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:45:22,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557988707] [2024-12-02 10:45:22,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:45:22,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:45:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:45:23,108 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:45:23,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:45:23,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557988707] [2024-12-02 10:45:23,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557988707] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:45:23,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896531901] [2024-12-02 10:45:23,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:45:23,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:45:23,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:45:23,110 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:45:23,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-12-02 10:45:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:45:23,304 INFO L256 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 10:45:23,305 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:45:24,473 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:45:24,473 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:45:25,190 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:45:25,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896531901] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:45:25,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:45:25,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12, 11] total 36 [2024-12-02 10:45:25,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686091079] [2024-12-02 10:45:25,190 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:45:25,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-12-02 10:45:25,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:45:25,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-12-02 10:45:25,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=1153, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 10:45:25,191 INFO L87 Difference]: Start difference. First operand 56830 states and 66870 transitions. Second operand has 36 states, 36 states have (on average 7.888888888888889) internal successors, (284), 36 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:45:34,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:45:34,670 INFO L93 Difference]: Finished difference Result 83657 states and 98571 transitions. [2024-12-02 10:45:34,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2024-12-02 10:45:34,671 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 7.888888888888889) internal successors, (284), 36 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2024-12-02 10:45:34,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:45:34,701 INFO L225 Difference]: With dead ends: 83657 [2024-12-02 10:45:34,702 INFO L226 Difference]: Without dead ends: 42662 [2024-12-02 10:45:34,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6309 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=3548, Invalid=16192, Unknown=0, NotChecked=0, Total=19740 [2024-12-02 10:45:34,719 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 3181 mSDsluCounter, 3227 mSDsCounter, 0 mSdLazyCounter, 3170 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3181 SdHoareTripleChecker+Valid, 3395 SdHoareTripleChecker+Invalid, 3250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 3170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:45:34,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3181 Valid, 3395 Invalid, 3250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 3170 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 10:45:34,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42662 states. [2024-12-02 10:45:34,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42662 to 35747. [2024-12-02 10:45:34,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35747 states, 35746 states have (on average 1.1709002405863593) internal successors, (41855), 35746 states have internal predecessors, (41855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:45:34,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35747 states to 35747 states and 41855 transitions. [2024-12-02 10:45:34,990 INFO L78 Accepts]: Start accepts. Automaton has 35747 states and 41855 transitions. Word has length 108 [2024-12-02 10:45:34,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:45:34,990 INFO L471 AbstractCegarLoop]: Abstraction has 35747 states and 41855 transitions. [2024-12-02 10:45:34,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 7.888888888888889) internal successors, (284), 36 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:45:34,990 INFO L276 IsEmpty]: Start isEmpty. Operand 35747 states and 41855 transitions. [2024-12-02 10:45:34,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 10:45:34,991 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:45:34,991 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 10:45:34,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-12-02 10:45:35,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:45:35,192 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:45:35,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:45:35,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1919040988, now seen corresponding path program 1 times [2024-12-02 10:45:35,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:45:35,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855926244] [2024-12-02 10:45:35,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:45:35,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:45:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:45:35,286 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:45:35,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:45:35,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855926244] [2024-12-02 10:45:35,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855926244] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:45:35,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:45:35,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:45:35,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037443421] [2024-12-02 10:45:35,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:45:35,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:45:35,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:45:35,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:45:35,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:45:35,287 INFO L87 Difference]: Start difference. First operand 35747 states and 41855 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:45:35,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:45:35,355 INFO L93 Difference]: Finished difference Result 48372 states and 56530 transitions. [2024-12-02 10:45:35,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:45:35,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2024-12-02 10:45:35,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:45:35,364 INFO L225 Difference]: With dead ends: 48372 [2024-12-02 10:45:35,364 INFO L226 Difference]: Without dead ends: 12856 [2024-12-02 10:45:35,374 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:45:35,374 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 33 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:45:35,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 204 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:45:35,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12856 states. [2024-12-02 10:45:35,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12856 to 12093. [2024-12-02 10:45:35,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12093 states, 12092 states have (on average 1.1423255044657625) internal successors, (13813), 12092 states have internal predecessors, (13813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:45:35,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12093 states to 12093 states and 13813 transitions. [2024-12-02 10:45:35,471 INFO L78 Accepts]: Start accepts. Automaton has 12093 states and 13813 transitions. Word has length 108 [2024-12-02 10:45:35,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:45:35,471 INFO L471 AbstractCegarLoop]: Abstraction has 12093 states and 13813 transitions. [2024-12-02 10:45:35,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:45:35,471 INFO L276 IsEmpty]: Start isEmpty. Operand 12093 states and 13813 transitions. [2024-12-02 10:45:35,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 10:45:35,472 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:45:35,472 INFO L218 NwaCegarLoop]: trace histogram [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 10:45:35,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-12-02 10:45:35,472 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:45:35,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:45:35,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1503801500, now seen corresponding path program 1 times [2024-12-02 10:45:35,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:45:35,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026054203] [2024-12-02 10:45:35,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:45:35,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:45:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:45:36,192 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:45:36,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:45:36,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026054203] [2024-12-02 10:45:36,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026054203] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:45:36,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714203314] [2024-12-02 10:45:36,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:45:36,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:45:36,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:45:36,194 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:45:36,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-12-02 10:45:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:45:36,405 INFO L256 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-12-02 10:45:36,407 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:45:38,730 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:45:38,730 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:45:42,256 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:45:42,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714203314] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:45:42,256 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:45:42,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 20] total 58 [2024-12-02 10:45:42,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907850435] [2024-12-02 10:45:42,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:45:42,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-12-02 10:45:42,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:45:42,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-12-02 10:45:42,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=3064, Unknown=0, NotChecked=0, Total=3306 [2024-12-02 10:45:42,257 INFO L87 Difference]: Start difference. First operand 12093 states and 13813 transitions. Second operand has 58 states, 58 states have (on average 5.103448275862069) internal successors, (296), 58 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:45:51,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:45:51,275 INFO L93 Difference]: Finished difference Result 17063 states and 19526 transitions. [2024-12-02 10:45:51,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2024-12-02 10:45:51,275 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 5.103448275862069) internal successors, (296), 58 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2024-12-02 10:45:51,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:45:51,280 INFO L225 Difference]: With dead ends: 17063 [2024-12-02 10:45:51,280 INFO L226 Difference]: Without dead ends: 8362 [2024-12-02 10:45:51,284 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 177 SyntacticMatches, 4 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2551 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=1332, Invalid=11100, Unknown=0, NotChecked=0, Total=12432 [2024-12-02 10:45:51,284 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 2364 mSDsluCounter, 7106 mSDsCounter, 0 mSdLazyCounter, 4239 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2364 SdHoareTripleChecker+Valid, 7378 SdHoareTripleChecker+Invalid, 4289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 4239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:45:51,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2364 Valid, 7378 Invalid, 4289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 4239 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-12-02 10:45:51,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8362 states. [2024-12-02 10:45:51,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8362 to 6232. [2024-12-02 10:45:51,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6232 states, 6231 states have (on average 1.1312790884288235) internal successors, (7049), 6231 states have internal predecessors, (7049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:45:51,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6232 states to 6232 states and 7049 transitions. [2024-12-02 10:45:51,332 INFO L78 Accepts]: Start accepts. Automaton has 6232 states and 7049 transitions. Word has length 109 [2024-12-02 10:45:51,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:45:51,332 INFO L471 AbstractCegarLoop]: Abstraction has 6232 states and 7049 transitions. [2024-12-02 10:45:51,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 5.103448275862069) internal successors, (296), 58 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:45:51,332 INFO L276 IsEmpty]: Start isEmpty. Operand 6232 states and 7049 transitions. [2024-12-02 10:45:51,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 10:45:51,332 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:45:51,333 INFO L218 NwaCegarLoop]: trace histogram [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 10:45:51,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-12-02 10:45:51,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:45:51,533 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:45:51,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:45:51,533 INFO L85 PathProgramCache]: Analyzing trace with hash 93250576, now seen corresponding path program 1 times [2024-12-02 10:45:51,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:45:51,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349799761] [2024-12-02 10:45:51,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:45:51,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:45:51,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:45:52,753 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:45:52,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:45:52,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349799761] [2024-12-02 10:45:52,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349799761] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:45:52,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668453310] [2024-12-02 10:45:52,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:45:52,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:45:52,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:45:52,755 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:45:52,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-12-02 10:45:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:45:53,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-02 10:45:53,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:45:55,048 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:45:55,048 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:45:56,678 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:45:56,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668453310] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:45:56,679 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:45:56,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 17, 17] total 54 [2024-12-02 10:45:56,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660186440] [2024-12-02 10:45:56,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:45:56,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-12-02 10:45:56,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:45:56,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-12-02 10:45:56,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=2693, Unknown=0, NotChecked=0, Total=2862 [2024-12-02 10:45:56,680 INFO L87 Difference]: Start difference. First operand 6232 states and 7049 transitions. Second operand has 54 states, 54 states have (on average 5.574074074074074) internal successors, (301), 54 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:46:03,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:46:03,353 INFO L93 Difference]: Finished difference Result 7438 states and 8452 transitions. [2024-12-02 10:46:03,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-12-02 10:46:03,354 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 5.574074074074074) internal successors, (301), 54 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2024-12-02 10:46:03,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:46:03,356 INFO L225 Difference]: With dead ends: 7438 [2024-12-02 10:46:03,356 INFO L226 Difference]: Without dead ends: 5578 [2024-12-02 10:46:03,358 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2124 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=1415, Invalid=9927, Unknown=0, NotChecked=0, Total=11342 [2024-12-02 10:46:03,358 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 1775 mSDsluCounter, 5593 mSDsCounter, 0 mSdLazyCounter, 3072 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1775 SdHoareTripleChecker+Valid, 5812 SdHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:46:03,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1775 Valid, 5812 Invalid, 3093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 3072 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 10:46:03,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5578 states. [2024-12-02 10:46:03,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5578 to 5499. [2024-12-02 10:46:03,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5499 states, 5498 states have (on average 1.13022917424518) internal successors, (6214), 5498 states have internal predecessors, (6214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:46:03,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5499 states to 5499 states and 6214 transitions. [2024-12-02 10:46:03,390 INFO L78 Accepts]: Start accepts. Automaton has 5499 states and 6214 transitions. Word has length 109 [2024-12-02 10:46:03,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:46:03,390 INFO L471 AbstractCegarLoop]: Abstraction has 5499 states and 6214 transitions. [2024-12-02 10:46:03,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 5.574074074074074) internal successors, (301), 54 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:46:03,390 INFO L276 IsEmpty]: Start isEmpty. Operand 5499 states and 6214 transitions. [2024-12-02 10:46:03,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-12-02 10:46:03,391 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:46:03,391 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:46:03,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-12-02 10:46:03,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:46:03,591 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:46:03,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:46:03,592 INFO L85 PathProgramCache]: Analyzing trace with hash -535668372, now seen corresponding path program 1 times [2024-12-02 10:46:03,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:46:03,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553344918] [2024-12-02 10:46:03,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:46:03,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:46:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:46:03,983 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 39 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:46:03,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:46:03,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553344918] [2024-12-02 10:46:03,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553344918] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:46:03,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698421624] [2024-12-02 10:46:03,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:46:03,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:46:03,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:46:03,985 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:46:03,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-12-02 10:46:04,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:46:04,222 INFO L256 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-12-02 10:46:04,225 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:46:06,307 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 22 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:46:06,307 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:46:09,249 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 22 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:46:09,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698421624] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:46:09,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:46:09,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 21, 22] total 51 [2024-12-02 10:46:09,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155156987] [2024-12-02 10:46:09,250 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:46:09,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-12-02 10:46:09,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:46:09,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-12-02 10:46:09,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=345, Invalid=2307, Unknown=0, NotChecked=0, Total=2652 [2024-12-02 10:46:09,252 INFO L87 Difference]: Start difference. First operand 5499 states and 6214 transitions. Second operand has 52 states, 52 states have (on average 8.48076923076923) internal successors, (441), 51 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:46:21,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:46:21,846 INFO L93 Difference]: Finished difference Result 13961 states and 16085 transitions. [2024-12-02 10:46:21,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2024-12-02 10:46:21,847 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 8.48076923076923) internal successors, (441), 51 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2024-12-02 10:46:21,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:46:21,851 INFO L225 Difference]: With dead ends: 13961 [2024-12-02 10:46:21,851 INFO L226 Difference]: Without dead ends: 9906 [2024-12-02 10:46:21,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6171 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=4295, Invalid=20197, Unknown=0, NotChecked=0, Total=24492 [2024-12-02 10:46:21,854 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 2196 mSDsluCounter, 3483 mSDsCounter, 0 mSdLazyCounter, 4275 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 3642 SdHoareTripleChecker+Invalid, 4385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 4275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:46:21,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2196 Valid, 3642 Invalid, 4385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 4275 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-02 10:46:21,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9906 states. [2024-12-02 10:46:21,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9906 to 8287. [2024-12-02 10:46:21,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8287 states, 8286 states have (on average 1.1299782766111512) internal successors, (9363), 8286 states have internal predecessors, (9363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:46:21,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8287 states to 8287 states and 9363 transitions. [2024-12-02 10:46:21,904 INFO L78 Accepts]: Start accepts. Automaton has 8287 states and 9363 transitions. Word has length 156 [2024-12-02 10:46:21,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:46:21,904 INFO L471 AbstractCegarLoop]: Abstraction has 8287 states and 9363 transitions. [2024-12-02 10:46:21,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 8.48076923076923) internal successors, (441), 51 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:46:21,904 INFO L276 IsEmpty]: Start isEmpty. Operand 8287 states and 9363 transitions. [2024-12-02 10:46:21,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 10:46:21,905 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:46:21,905 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:46:21,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-12-02 10:46:22,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:46:22,106 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:46:22,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:46:22,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1268216372, now seen corresponding path program 1 times [2024-12-02 10:46:22,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:46:22,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016610628] [2024-12-02 10:46:22,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:46:22,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:46:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:46:23,194 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 16 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:46:23,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:46:23,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016610628] [2024-12-02 10:46:23,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016610628] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:46:23,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402278572] [2024-12-02 10:46:23,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:46:23,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:46:23,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:46:23,197 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:46:23,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-12-02 10:46:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:46:23,435 INFO L256 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-12-02 10:46:23,438 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:46:25,443 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 16 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:46:25,443 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:46:30,750 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 16 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:46:30,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402278572] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:46:30,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:46:30,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23, 22] total 62 [2024-12-02 10:46:30,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886069075] [2024-12-02 10:46:30,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:46:30,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2024-12-02 10:46:30,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:46:30,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2024-12-02 10:46:30,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=317, Invalid=3465, Unknown=0, NotChecked=0, Total=3782 [2024-12-02 10:46:30,752 INFO L87 Difference]: Start difference. First operand 8287 states and 9363 transitions. Second operand has 62 states, 62 states have (on average 7.225806451612903) internal successors, (448), 62 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:46:38,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:46:38,161 INFO L93 Difference]: Finished difference Result 15719 states and 17935 transitions. [2024-12-02 10:46:38,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2024-12-02 10:46:38,161 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 7.225806451612903) internal successors, (448), 62 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2024-12-02 10:46:38,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:46:38,167 INFO L225 Difference]: With dead ends: 15719 [2024-12-02 10:46:38,167 INFO L226 Difference]: Without dead ends: 12727 [2024-12-02 10:46:38,169 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5448 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=2105, Invalid=17355, Unknown=0, NotChecked=0, Total=19460 [2024-12-02 10:46:38,169 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 1899 mSDsluCounter, 6741 mSDsCounter, 0 mSdLazyCounter, 3580 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1899 SdHoareTripleChecker+Valid, 6946 SdHoareTripleChecker+Invalid, 3628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 3580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:46:38,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1899 Valid, 6946 Invalid, 3628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 3580 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 10:46:38,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12727 states. [2024-12-02 10:46:38,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12727 to 11306. [2024-12-02 10:46:38,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11306 states, 11305 states have (on average 1.134719150818222) internal successors, (12828), 11305 states have internal predecessors, (12828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:46:38,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11306 states to 11306 states and 12828 transitions. [2024-12-02 10:46:38,251 INFO L78 Accepts]: Start accepts. Automaton has 11306 states and 12828 transitions. Word has length 157 [2024-12-02 10:46:38,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:46:38,251 INFO L471 AbstractCegarLoop]: Abstraction has 11306 states and 12828 transitions. [2024-12-02 10:46:38,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 7.225806451612903) internal successors, (448), 62 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:46:38,251 INFO L276 IsEmpty]: Start isEmpty. Operand 11306 states and 12828 transitions. [2024-12-02 10:46:38,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 10:46:38,252 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:46:38,252 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:46:38,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-12-02 10:46:38,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-12-02 10:46:38,453 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:46:38,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:46:38,453 INFO L85 PathProgramCache]: Analyzing trace with hash 2117156885, now seen corresponding path program 1 times [2024-12-02 10:46:38,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:46:38,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891038715] [2024-12-02 10:46:38,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:46:38,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:46:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:46:39,236 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 31 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:46:39,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:46:39,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891038715] [2024-12-02 10:46:39,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891038715] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:46:39,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631074328] [2024-12-02 10:46:39,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:46:39,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:46:39,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:46:39,238 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:46:39,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-12-02 10:46:39,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:46:39,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 10:46:39,452 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:46:40,102 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 34 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:46:40,102 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:46:41,920 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 31 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:46:41,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631074328] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:46:41,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:46:41,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 11, 11] total 35 [2024-12-02 10:46:41,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736888097] [2024-12-02 10:46:41,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:46:41,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-12-02 10:46:41,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:46:41,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-12-02 10:46:41,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1121, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 10:46:41,922 INFO L87 Difference]: Start difference. First operand 11306 states and 12828 transitions. Second operand has 36 states, 36 states have (on average 11.444444444444445) internal successors, (412), 35 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:46:45,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:46:45,183 INFO L93 Difference]: Finished difference Result 21213 states and 24183 transitions. [2024-12-02 10:46:45,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-12-02 10:46:45,183 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.444444444444445) internal successors, (412), 35 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2024-12-02 10:46:45,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:46:45,204 INFO L225 Difference]: With dead ends: 21213 [2024-12-02 10:46:45,204 INFO L226 Difference]: Without dead ends: 15548 [2024-12-02 10:46:45,206 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1361 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1272, Invalid=5208, Unknown=0, NotChecked=0, Total=6480 [2024-12-02 10:46:45,206 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 2285 mSDsluCounter, 1787 mSDsCounter, 0 mSdLazyCounter, 2163 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2285 SdHoareTripleChecker+Valid, 1898 SdHoareTripleChecker+Invalid, 2225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:46:45,206 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2285 Valid, 1898 Invalid, 2225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2163 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 10:46:45,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15548 states. [2024-12-02 10:46:45,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15548 to 9605. [2024-12-02 10:46:45,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9605 states, 9604 states have (on average 1.125052061640983) internal successors, (10805), 9604 states have internal predecessors, (10805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:46:45,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9605 states to 9605 states and 10805 transitions. [2024-12-02 10:46:45,280 INFO L78 Accepts]: Start accepts. Automaton has 9605 states and 10805 transitions. Word has length 157 [2024-12-02 10:46:45,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:46:45,280 INFO L471 AbstractCegarLoop]: Abstraction has 9605 states and 10805 transitions. [2024-12-02 10:46:45,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.444444444444445) internal successors, (412), 35 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:46:45,281 INFO L276 IsEmpty]: Start isEmpty. Operand 9605 states and 10805 transitions. [2024-12-02 10:46:45,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 10:46:45,282 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:46:45,282 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:46:45,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-12-02 10:46:45,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-12-02 10:46:45,482 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:46:45,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:46:45,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1791325862, now seen corresponding path program 1 times [2024-12-02 10:46:45,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:46:45,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122002664] [2024-12-02 10:46:45,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:46:45,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:46:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:46:46,532 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 35 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:46:46,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:46:46,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122002664] [2024-12-02 10:46:46,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122002664] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:46:46,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015546684] [2024-12-02 10:46:46,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:46:46,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:46:46,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:46:46,535 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:46:46,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-12-02 10:46:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:46:46,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-12-02 10:46:46,785 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:46:49,545 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 35 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:46:49,545 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:46:52,511 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 25 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:46:52,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015546684] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:46:52,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:46:52,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 64 [2024-12-02 10:46:52,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189648764] [2024-12-02 10:46:52,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:46:52,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2024-12-02 10:46:52,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:46:52,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2024-12-02 10:46:52,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=226, Invalid=3806, Unknown=0, NotChecked=0, Total=4032 [2024-12-02 10:46:52,512 INFO L87 Difference]: Start difference. First operand 9605 states and 10805 transitions. Second operand has 64 states, 64 states have (on average 6.859375) internal successors, (439), 64 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:47:05,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:47:05,826 INFO L93 Difference]: Finished difference Result 13453 states and 15155 transitions. [2024-12-02 10:47:05,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2024-12-02 10:47:05,827 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 6.859375) internal successors, (439), 64 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2024-12-02 10:47:05,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:47:05,832 INFO L225 Difference]: With dead ends: 13453 [2024-12-02 10:47:05,832 INFO L226 Difference]: Without dead ends: 11187 [2024-12-02 10:47:05,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5386 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=2208, Invalid=20744, Unknown=0, NotChecked=0, Total=22952 [2024-12-02 10:47:05,835 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 1644 mSDsluCounter, 7213 mSDsCounter, 0 mSdLazyCounter, 4050 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1644 SdHoareTripleChecker+Valid, 7406 SdHoareTripleChecker+Invalid, 4105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 4050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:47:05,835 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1644 Valid, 7406 Invalid, 4105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 4050 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-12-02 10:47:05,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11187 states. [2024-12-02 10:47:05,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11187 to 10492. [2024-12-02 10:47:05,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10492 states, 10491 states have (on average 1.1230578591173386) internal successors, (11782), 10491 states have internal predecessors, (11782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:47:05,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10492 states to 10492 states and 11782 transitions. [2024-12-02 10:47:05,916 INFO L78 Accepts]: Start accepts. Automaton has 10492 states and 11782 transitions. Word has length 157 [2024-12-02 10:47:05,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:47:05,917 INFO L471 AbstractCegarLoop]: Abstraction has 10492 states and 11782 transitions. [2024-12-02 10:47:05,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 6.859375) internal successors, (439), 64 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:47:05,917 INFO L276 IsEmpty]: Start isEmpty. Operand 10492 states and 11782 transitions. [2024-12-02 10:47:05,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 10:47:05,918 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:47:05,918 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:47:05,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-12-02 10:47:06,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-12-02 10:47:06,118 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:47:06,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:47:06,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1490178735, now seen corresponding path program 1 times [2024-12-02 10:47:06,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:47:06,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560930534] [2024-12-02 10:47:06,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:47:06,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:47:06,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:47:06,769 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 22 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:47:06,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:47:06,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560930534] [2024-12-02 10:47:06,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560930534] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:47:06,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983318289] [2024-12-02 10:47:06,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:47:06,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:47:06,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:47:06,771 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:47:06,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-12-02 10:47:06,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:47:07,001 INFO L256 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-12-02 10:47:07,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:47:09,020 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 28 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:47:09,021 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:47:12,734 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 22 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:47:12,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983318289] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:47:12,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:47:12,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 25, 25] total 59 [2024-12-02 10:47:12,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491806352] [2024-12-02 10:47:12,735 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:47:12,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-12-02 10:47:12,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:47:12,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-12-02 10:47:12,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=3189, Unknown=0, NotChecked=0, Total=3540 [2024-12-02 10:47:12,737 INFO L87 Difference]: Start difference. First operand 10492 states and 11782 transitions. Second operand has 60 states, 60 states have (on average 6.983333333333333) internal successors, (419), 59 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:47:48,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:47:48,463 INFO L93 Difference]: Finished difference Result 21444 states and 24213 transitions. [2024-12-02 10:47:48,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2024-12-02 10:47:48,464 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 6.983333333333333) internal successors, (419), 59 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2024-12-02 10:47:48,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:47:48,484 INFO L225 Difference]: With dead ends: 21444 [2024-12-02 10:47:48,484 INFO L226 Difference]: Without dead ends: 14858 [2024-12-02 10:47:48,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 249 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21050 ImplicationChecksByTransitivity, 32.6s TimeCoverageRelationStatistics Valid=8361, Invalid=54389, Unknown=0, NotChecked=0, Total=62750 [2024-12-02 10:47:48,489 INFO L435 NwaCegarLoop]: 266 mSDtfsCounter, 3005 mSDsluCounter, 6179 mSDsCounter, 0 mSdLazyCounter, 6316 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3005 SdHoareTripleChecker+Valid, 6445 SdHoareTripleChecker+Invalid, 6427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 6316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:47:48,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3005 Valid, 6445 Invalid, 6427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 6316 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-12-02 10:47:48,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14858 states. [2024-12-02 10:47:48,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14858 to 6564. [2024-12-02 10:47:48,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6564 states, 6563 states have (on average 1.1090964497943014) internal successors, (7279), 6563 states have internal predecessors, (7279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:47:48,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6564 states to 6564 states and 7279 transitions. [2024-12-02 10:47:48,551 INFO L78 Accepts]: Start accepts. Automaton has 6564 states and 7279 transitions. Word has length 157 [2024-12-02 10:47:48,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:47:48,551 INFO L471 AbstractCegarLoop]: Abstraction has 6564 states and 7279 transitions. [2024-12-02 10:47:48,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 6.983333333333333) internal successors, (419), 59 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:47:48,551 INFO L276 IsEmpty]: Start isEmpty. Operand 6564 states and 7279 transitions. [2024-12-02 10:47:48,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 10:47:48,552 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:47:48,552 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:47:48,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-12-02 10:47:48,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-12-02 10:47:48,753 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:47:48,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:47:48,753 INFO L85 PathProgramCache]: Analyzing trace with hash 23486198, now seen corresponding path program 1 times [2024-12-02 10:47:48,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:47:48,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757807694] [2024-12-02 10:47:48,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:47:48,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:47:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:47:50,293 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 26 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:47:50,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:47:50,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757807694] [2024-12-02 10:47:50,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757807694] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:47:50,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761767269] [2024-12-02 10:47:50,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:47:50,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:47:50,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:47:50,295 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:47:50,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-12-02 10:47:50,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:47:50,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-12-02 10:47:50,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:47:52,201 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 29 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:47:52,201 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:47:54,864 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 26 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:47:54,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761767269] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:47:54,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:47:54,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 18, 18] total 58 [2024-12-02 10:47:54,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516991490] [2024-12-02 10:47:54,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:47:54,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-12-02 10:47:54,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:47:54,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-12-02 10:47:54,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=3097, Unknown=0, NotChecked=0, Total=3306 [2024-12-02 10:47:54,866 INFO L87 Difference]: Start difference. First operand 6564 states and 7279 transitions. Second operand has 58 states, 58 states have (on average 7.586206896551724) internal successors, (440), 58 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:48:02,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:48:02,593 INFO L93 Difference]: Finished difference Result 9669 states and 10736 transitions. [2024-12-02 10:48:02,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-12-02 10:48:02,594 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 7.586206896551724) internal successors, (440), 58 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2024-12-02 10:48:02,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:48:02,597 INFO L225 Difference]: With dead ends: 9669 [2024-12-02 10:48:02,597 INFO L226 Difference]: Without dead ends: 5662 [2024-12-02 10:48:02,599 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2905 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=1765, Invalid=13487, Unknown=0, NotChecked=0, Total=15252 [2024-12-02 10:48:02,599 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 1847 mSDsluCounter, 7742 mSDsCounter, 0 mSdLazyCounter, 4172 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1847 SdHoareTripleChecker+Valid, 7974 SdHoareTripleChecker+Invalid, 4194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 4172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:48:02,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1847 Valid, 7974 Invalid, 4194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 4172 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-02 10:48:02,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5662 states. [2024-12-02 10:48:02,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5662 to 5603. [2024-12-02 10:48:02,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5603 states, 5602 states have (on average 1.099964298464834) internal successors, (6162), 5602 states have internal predecessors, (6162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:48:02,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5603 states to 5603 states and 6162 transitions. [2024-12-02 10:48:02,630 INFO L78 Accepts]: Start accepts. Automaton has 5603 states and 6162 transitions. Word has length 157 [2024-12-02 10:48:02,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:48:02,630 INFO L471 AbstractCegarLoop]: Abstraction has 5603 states and 6162 transitions. [2024-12-02 10:48:02,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 7.586206896551724) internal successors, (440), 58 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:48:02,630 INFO L276 IsEmpty]: Start isEmpty. Operand 5603 states and 6162 transitions. [2024-12-02 10:48:02,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 10:48:02,631 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:48:02,631 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:48:02,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-12-02 10:48:02,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:48:02,831 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:48:02,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:48:02,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1963769383, now seen corresponding path program 1 times [2024-12-02 10:48:02,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:48:02,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604038682] [2024-12-02 10:48:02,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:48:02,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:48:02,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:48:04,469 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 16 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:48:04,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:48:04,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604038682] [2024-12-02 10:48:04,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604038682] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:48:04,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083698503] [2024-12-02 10:48:04,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:48:04,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:48:04,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:48:04,472 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:48:04,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-12-02 10:48:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:48:04,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-12-02 10:48:04,727 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:48:07,902 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 16 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:48:07,902 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:48:11,431 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 16 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:48:11,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083698503] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:48:11,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:48:11,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 25, 25] total 73 [2024-12-02 10:48:11,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193301247] [2024-12-02 10:48:11,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:48:11,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2024-12-02 10:48:11,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:48:11,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2024-12-02 10:48:11,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=401, Invalid=4855, Unknown=0, NotChecked=0, Total=5256 [2024-12-02 10:48:11,433 INFO L87 Difference]: Start difference. First operand 5603 states and 6162 transitions. Second operand has 73 states, 73 states have (on average 5.8493150684931505) internal successors, (427), 73 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:48:27,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:48:27,455 INFO L93 Difference]: Finished difference Result 12383 states and 13678 transitions. [2024-12-02 10:48:27,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2024-12-02 10:48:27,456 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 73 states have (on average 5.8493150684931505) internal successors, (427), 73 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2024-12-02 10:48:27,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:48:27,460 INFO L225 Difference]: With dead ends: 12383 [2024-12-02 10:48:27,460 INFO L226 Difference]: Without dead ends: 10172 [2024-12-02 10:48:27,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 273 SyntacticMatches, 1 SemanticMatches, 219 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15797 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=5689, Invalid=42931, Unknown=0, NotChecked=0, Total=48620 [2024-12-02 10:48:27,463 INFO L435 NwaCegarLoop]: 463 mSDtfsCounter, 2785 mSDsluCounter, 14879 mSDsCounter, 0 mSdLazyCounter, 6856 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2785 SdHoareTripleChecker+Valid, 15342 SdHoareTripleChecker+Invalid, 6917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 6856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:48:27,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2785 Valid, 15342 Invalid, 6917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 6856 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-12-02 10:48:27,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10172 states. [2024-12-02 10:48:27,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10172 to 8296. [2024-12-02 10:48:27,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8296 states, 8295 states have (on average 1.09957805907173) internal successors, (9121), 8295 states have internal predecessors, (9121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:48:27,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8296 states to 8296 states and 9121 transitions. [2024-12-02 10:48:27,515 INFO L78 Accepts]: Start accepts. Automaton has 8296 states and 9121 transitions. Word has length 158 [2024-12-02 10:48:27,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:48:27,515 INFO L471 AbstractCegarLoop]: Abstraction has 8296 states and 9121 transitions. [2024-12-02 10:48:27,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 5.8493150684931505) internal successors, (427), 73 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:48:27,515 INFO L276 IsEmpty]: Start isEmpty. Operand 8296 states and 9121 transitions. [2024-12-02 10:48:27,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 10:48:27,516 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:48:27,516 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:48:27,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-12-02 10:48:27,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:48:27,717 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:48:27,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:48:27,717 INFO L85 PathProgramCache]: Analyzing trace with hash -167479499, now seen corresponding path program 1 times [2024-12-02 10:48:27,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:48:27,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420593923] [2024-12-02 10:48:27,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:48:27,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:48:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:48:28,131 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 12 proven. 78 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-02 10:48:28,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:48:28,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420593923] [2024-12-02 10:48:28,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420593923] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:48:28,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288309827] [2024-12-02 10:48:28,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:48:28,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:48:28,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:48:28,133 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:48:28,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-12-02 10:48:28,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:48:28,379 INFO L256 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-02 10:48:28,382 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:48:28,706 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 12 proven. 80 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 10:48:28,707 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:48:29,333 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 76 proven. 21 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 10:48:29,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288309827] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:48:29,333 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:48:29,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 8] total 15 [2024-12-02 10:48:29,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003573450] [2024-12-02 10:48:29,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:48:29,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 10:48:29,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:48:29,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 10:48:29,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2024-12-02 10:48:29,334 INFO L87 Difference]: Start difference. First operand 8296 states and 9121 transitions. Second operand has 15 states, 15 states have (on average 20.2) internal successors, (303), 15 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:48:29,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:48:29,526 INFO L93 Difference]: Finished difference Result 25190 states and 27989 transitions. [2024-12-02 10:48:29,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 10:48:29,527 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 20.2) internal successors, (303), 15 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2024-12-02 10:48:29,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:48:29,536 INFO L225 Difference]: With dead ends: 25190 [2024-12-02 10:48:29,536 INFO L226 Difference]: Without dead ends: 17413 [2024-12-02 10:48:29,540 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 307 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2024-12-02 10:48:29,540 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 522 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:48:29,540 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 1183 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:48:29,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17413 states. [2024-12-02 10:48:29,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17413 to 16584. [2024-12-02 10:48:29,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16584 states, 16583 states have (on average 1.1046855213170115) internal successors, (18319), 16583 states have internal predecessors, (18319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:48:29,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16584 states to 16584 states and 18319 transitions. [2024-12-02 10:48:29,760 INFO L78 Accepts]: Start accepts. Automaton has 16584 states and 18319 transitions. Word has length 158 [2024-12-02 10:48:29,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:48:29,760 INFO L471 AbstractCegarLoop]: Abstraction has 16584 states and 18319 transitions. [2024-12-02 10:48:29,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 20.2) internal successors, (303), 15 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:48:29,760 INFO L276 IsEmpty]: Start isEmpty. Operand 16584 states and 18319 transitions. [2024-12-02 10:48:29,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 10:48:29,761 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:48:29,762 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:48:29,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-12-02 10:48:29,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:48:29,962 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-12-02 10:48:29,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:48:29,963 INFO L85 PathProgramCache]: Analyzing trace with hash 305253592, now seen corresponding path program 1 times [2024-12-02 10:48:29,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:48:29,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587633391] [2024-12-02 10:48:29,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:48:29,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:48:30,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:48:30,671 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 40 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:48:30,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:48:30,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587633391] [2024-12-02 10:48:30,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587633391] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:48:30,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284012965] [2024-12-02 10:48:30,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:48:30,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:48:30,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:48:30,673 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:48:30,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f072a1e1-4498-4176-88cf-0ae91405b337/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-12-02 10:48:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:48:30,932 INFO L256 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-12-02 10:48:30,934 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:48:34,734 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 40 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:48:34,734 INFO L312 TraceCheckSpWp]: Computing backward predicates...