./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd --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 be1fcaa299b4a26d5c3c0d4f857b13329cbb7ec0505911e54bd9d27d2647b4d4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:46:25,463 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:46:25,540 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 15:46:25,548 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:46:25,549 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:46:25,589 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:46:25,590 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:46:25,590 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:46:25,592 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:46:25,592 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:46:25,592 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:46:25,592 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:46:25,593 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:46:25,593 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:46:25,593 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:46:25,593 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:46:25,593 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:46:25,593 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:46:25,594 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:46:25,594 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:46:25,594 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:46:25,594 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:46:25,594 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:46:25,594 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:46:25,594 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:46:25,594 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:46:25,594 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:46:25,595 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:46:25,595 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:46:25,595 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:46:25,595 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:46:25,595 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:46:25,595 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:46:25,595 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:46:25,597 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:46:25,597 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:46:25,597 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:46:25,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:46:25,597 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:46:25,597 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:46:25,597 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:46:25,597 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:46:25,597 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_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd 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 -> be1fcaa299b4a26d5c3c0d4f857b13329cbb7ec0505911e54bd9d27d2647b4d4 [2024-11-13 15:46:25,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:46:25,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:46:25,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:46:25,968 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:46:25,968 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:46:25,970 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c Unable to find full path for "g++" [2024-11-13 15:46:27,866 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:46:28,390 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:46:28,391 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2024-11-13 15:46:28,428 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/data/ab1b24975/4f154b4b642849b59f654832579694a8/FLAG9f48326ee [2024-11-13 15:46:28,445 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/data/ab1b24975/4f154b4b642849b59f654832579694a8 [2024-11-13 15:46:28,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:46:28,449 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:46:28,451 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:46:28,452 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:46:28,456 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:46:28,457 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:46:28" (1/1) ... [2024-11-13 15:46:28,457 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d1cdf80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:46:28, skipping insertion in model container [2024-11-13 15:46:28,457 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:46:28" (1/1) ... [2024-11-13 15:46:28,567 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:46:28,889 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_7981819c-8008-4bfd-8733-74f6f0a7fa6a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[7172,7185] [2024-11-13 15:46:28,933 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[10914,10927] [2024-11-13 15:46:28,972 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_7981819c-8008-4bfd-8733-74f6f0a7fa6a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[17944,17957] [2024-11-13 15:46:29,002 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_7981819c-8008-4bfd-8733-74f6f0a7fa6a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[24017,24030] [2024-11-13 15:46:29,085 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_7981819c-8008-4bfd-8733-74f6f0a7fa6a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[42645,42658] [2024-11-13 15:46:29,160 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_7981819c-8008-4bfd-8733-74f6f0a7fa6a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[64626,64639] [2024-11-13 15:46:29,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:46:29,378 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:46:29,438 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_7981819c-8008-4bfd-8733-74f6f0a7fa6a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[7172,7185] [2024-11-13 15:46:29,452 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_7981819c-8008-4bfd-8733-74f6f0a7fa6a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[10914,10927] [2024-11-13 15:46:29,472 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_7981819c-8008-4bfd-8733-74f6f0a7fa6a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[17944,17957] [2024-11-13 15:46:29,487 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_7981819c-8008-4bfd-8733-74f6f0a7fa6a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[24017,24030] [2024-11-13 15:46:29,530 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_7981819c-8008-4bfd-8733-74f6f0a7fa6a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[42645,42658] [2024-11-13 15:46:29,578 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_7981819c-8008-4bfd-8733-74f6f0a7fa6a/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[64626,64639] [2024-11-13 15:46:29,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:46:29,718 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:46:29,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:46:29 WrapperNode [2024-11-13 15:46:29,718 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:46:29,719 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:46:29,719 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:46:29,720 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:46:29,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:46:29" (1/1) ... [2024-11-13 15:46:29,779 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:46:29" (1/1) ... [2024-11-13 15:46:30,005 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 5679 [2024-11-13 15:46:30,005 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:46:30,006 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:46:30,006 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:46:30,006 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:46:30,016 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:46:29" (1/1) ... [2024-11-13 15:46:30,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:46:29" (1/1) ... [2024-11-13 15:46:30,034 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:46:29" (1/1) ... [2024-11-13 15:46:30,119 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 15:46:30,123 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:46:29" (1/1) ... [2024-11-13 15:46:30,123 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:46:29" (1/1) ... [2024-11-13 15:46:30,189 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:46:29" (1/1) ... [2024-11-13 15:46:30,237 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:46:29" (1/1) ... [2024-11-13 15:46:30,260 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:46:29" (1/1) ... [2024-11-13 15:46:30,277 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:46:29" (1/1) ... [2024-11-13 15:46:30,304 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:46:30,305 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:46:30,305 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:46:30,305 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:46:30,306 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:46:29" (1/1) ... [2024-11-13 15:46:30,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:46:30,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:46:30,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:46:30,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:46:30,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:46:30,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:46:30,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:46:30,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:46:30,684 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:46:30,687 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:46:34,880 INFO L? ?]: Removed 998 outVars from TransFormulas that were not future-live. [2024-11-13 15:46:34,881 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:46:34,930 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:46:34,934 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 15:46:34,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:46:34 BoogieIcfgContainer [2024-11-13 15:46:34,934 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:46:34,939 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:46:34,939 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:46:34,943 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:46:34,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:46:28" (1/3) ... [2024-11-13 15:46:34,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a30fd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:46:34, skipping insertion in model container [2024-11-13 15:46:34,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:46:29" (2/3) ... [2024-11-13 15:46:34,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a30fd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:46:34, skipping insertion in model container [2024-11-13 15:46:34,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:46:34" (3/3) ... [2024-11-13 15:46:34,945 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2024-11-13 15:46:34,960 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:46:34,963 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c that has 1 procedures, 1121 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2024-11-13 15:46:35,073 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:46:35,088 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;@52d0a2bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:46:35,089 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-13 15:46:35,100 INFO L276 IsEmpty]: Start isEmpty. Operand has 1121 states, 1114 states have (on average 1.8285457809694794) internal successors, (2037), 1120 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:35,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 15:46:35,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:46:35,131 INFO L215 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] [2024-11-13 15:46:35,132 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:46:35,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:35,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1703299446, now seen corresponding path program 1 times [2024-11-13 15:46:35,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:35,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443918809] [2024-11-13 15:46:35,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:35,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:46:35,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:35,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:46:35,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443918809] [2024-11-13 15:46:35,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443918809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:46:35,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:46:35,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:46:35,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139788905] [2024-11-13 15:46:35,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:46:35,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:46:35,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:46:35,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:46:35,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:46:35,893 INFO L87 Difference]: Start difference. First operand has 1121 states, 1114 states have (on average 1.8285457809694794) internal successors, (2037), 1120 states have internal predecessors, (2037), 0 states have call successors, (0), 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 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:37,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:46:37,728 INFO L93 Difference]: Finished difference Result 2061 states and 3646 transitions. [2024-11-13 15:46:37,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:46:37,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2024-11-13 15:46:37,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:46:37,763 INFO L225 Difference]: With dead ends: 2061 [2024-11-13 15:46:37,763 INFO L226 Difference]: Without dead ends: 1339 [2024-11-13 15:46:37,769 INFO L431 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 [2024-11-13 15:46:37,776 INFO L432 NwaCegarLoop]: 1064 mSDtfsCounter, 6445 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6445 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:46:37,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6445 Valid, 1421 Invalid, 1041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-13 15:46:37,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2024-11-13 15:46:37,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 1327. [2024-11-13 15:46:37,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 1321 states have (on average 1.336109008327025) internal successors, (1765), 1326 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:37,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 1765 transitions. [2024-11-13 15:46:37,901 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 1765 transitions. Word has length 51 [2024-11-13 15:46:37,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:46:37,901 INFO L471 AbstractCegarLoop]: Abstraction has 1327 states and 1765 transitions. [2024-11-13 15:46:37,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:37,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 1765 transitions. [2024-11-13 15:46:37,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 15:46:37,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:46:37,905 INFO L215 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] [2024-11-13 15:46:37,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:46:37,906 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:46:37,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:37,906 INFO L85 PathProgramCache]: Analyzing trace with hash 199718681, now seen corresponding path program 1 times [2024-11-13 15:46:37,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:37,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007311712] [2024-11-13 15:46:37,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:37,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:46:38,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:38,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:46:38,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007311712] [2024-11-13 15:46:38,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007311712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:46:38,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:46:38,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:46:38,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803557085] [2024-11-13 15:46:38,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:46:38,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:46:38,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:46:38,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:46:38,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:46:38,147 INFO L87 Difference]: Start difference. First operand 1327 states and 1765 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:39,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:46:39,387 INFO L93 Difference]: Finished difference Result 2510 states and 3426 transitions. [2024-11-13 15:46:39,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:46:39,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2024-11-13 15:46:39,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:46:39,395 INFO L225 Difference]: With dead ends: 2510 [2024-11-13 15:46:39,396 INFO L226 Difference]: Without dead ends: 1697 [2024-11-13 15:46:39,397 INFO L431 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 [2024-11-13 15:46:39,399 INFO L432 NwaCegarLoop]: 574 mSDtfsCounter, 4284 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4284 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:46:39,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4284 Valid, 820 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 15:46:39,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2024-11-13 15:46:39,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1687. [2024-11-13 15:46:39,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1681 states have (on average 1.3652587745389648) internal successors, (2295), 1686 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:39,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2295 transitions. [2024-11-13 15:46:39,487 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2295 transitions. Word has length 51 [2024-11-13 15:46:39,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:46:39,488 INFO L471 AbstractCegarLoop]: Abstraction has 1687 states and 2295 transitions. [2024-11-13 15:46:39,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:39,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2295 transitions. [2024-11-13 15:46:39,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 15:46:39,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:46:39,495 INFO L215 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] [2024-11-13 15:46:39,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:46:39,495 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:46:39,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:39,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1084504014, now seen corresponding path program 1 times [2024-11-13 15:46:39,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:39,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341910862] [2024-11-13 15:46:39,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:39,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:39,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:46:39,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:39,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:46:39,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341910862] [2024-11-13 15:46:39,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341910862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:46:39,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:46:39,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:46:39,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469017527] [2024-11-13 15:46:39,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:46:39,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:46:39,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:46:39,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:46:39,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:46:39,775 INFO L87 Difference]: Start difference. First operand 1687 states and 2295 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:40,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:46:40,940 INFO L93 Difference]: Finished difference Result 3362 states and 4642 transitions. [2024-11-13 15:46:40,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:46:40,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2024-11-13 15:46:40,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:46:40,955 INFO L225 Difference]: With dead ends: 3362 [2024-11-13 15:46:40,956 INFO L226 Difference]: Without dead ends: 2476 [2024-11-13 15:46:40,958 INFO L431 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 [2024-11-13 15:46:40,958 INFO L432 NwaCegarLoop]: 498 mSDtfsCounter, 3830 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3830 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:46:40,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3830 Valid, 776 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 15:46:40,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2476 states. [2024-11-13 15:46:41,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2476 to 2470. [2024-11-13 15:46:41,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2464 states have (on average 1.364448051948052) internal successors, (3362), 2469 states have internal predecessors, (3362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:41,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3362 transitions. [2024-11-13 15:46:41,054 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3362 transitions. Word has length 51 [2024-11-13 15:46:41,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:46:41,054 INFO L471 AbstractCegarLoop]: Abstraction has 2470 states and 3362 transitions. [2024-11-13 15:46:41,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:41,055 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3362 transitions. [2024-11-13 15:46:41,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-13 15:46:41,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:46:41,059 INFO L215 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] [2024-11-13 15:46:41,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:46:41,059 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:46:41,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:41,060 INFO L85 PathProgramCache]: Analyzing trace with hash -614217846, now seen corresponding path program 1 times [2024-11-13 15:46:41,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:41,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681991285] [2024-11-13 15:46:41,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:41,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:41,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:46:41,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:41,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:46:41,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681991285] [2024-11-13 15:46:41,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681991285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:46:41,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:46:41,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 15:46:41,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444111485] [2024-11-13 15:46:41,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:46:41,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:46:41,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:46:41,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:46:41,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:46:41,694 INFO L87 Difference]: Start difference. First operand 2470 states and 3362 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 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) [2024-11-13 15:46:44,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:46:44,329 INFO L93 Difference]: Finished difference Result 4104 states and 5690 transitions. [2024-11-13 15:46:44,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:46:44,330 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 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 [2024-11-13 15:46:44,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:46:44,350 INFO L225 Difference]: With dead ends: 4104 [2024-11-13 15:46:44,351 INFO L226 Difference]: Without dead ends: 4099 [2024-11-13 15:46:44,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2024-11-13 15:46:44,355 INFO L432 NwaCegarLoop]: 564 mSDtfsCounter, 3711 mSDsluCounter, 2189 mSDsCounter, 0 mSdLazyCounter, 2666 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3711 SdHoareTripleChecker+Valid, 2753 SdHoareTripleChecker+Invalid, 2704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:46:44,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3711 Valid, 2753 Invalid, 2704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2666 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-13 15:46:44,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4099 states. [2024-11-13 15:46:44,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4099 to 2470. [2024-11-13 15:46:44,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2464 states have (on average 1.3640422077922079) internal successors, (3361), 2469 states have internal predecessors, (3361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:44,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3361 transitions. [2024-11-13 15:46:44,523 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3361 transitions. Word has length 52 [2024-11-13 15:46:44,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:46:44,524 INFO L471 AbstractCegarLoop]: Abstraction has 2470 states and 3361 transitions. [2024-11-13 15:46:44,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 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) [2024-11-13 15:46:44,524 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3361 transitions. [2024-11-13 15:46:44,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-13 15:46:44,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:46:44,530 INFO L215 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] [2024-11-13 15:46:44,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:46:44,531 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:46:44,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:44,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1085905725, now seen corresponding path program 1 times [2024-11-13 15:46:44,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:44,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021342523] [2024-11-13 15:46:44,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:44,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:46:45,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:45,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:46:45,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021342523] [2024-11-13 15:46:45,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021342523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:46:45,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:46:45,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 15:46:45,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762649554] [2024-11-13 15:46:45,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:46:45,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:46:45,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:46:45,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:46:45,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:46:45,201 INFO L87 Difference]: Start difference. First operand 2470 states and 3361 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 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) [2024-11-13 15:46:47,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:46:47,680 INFO L93 Difference]: Finished difference Result 4504 states and 6313 transitions. [2024-11-13 15:46:47,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 15:46:47,681 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 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 [2024-11-13 15:46:47,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:46:47,695 INFO L225 Difference]: With dead ends: 4504 [2024-11-13 15:46:47,695 INFO L226 Difference]: Without dead ends: 3997 [2024-11-13 15:46:47,697 INFO L431 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 [2024-11-13 15:46:47,698 INFO L432 NwaCegarLoop]: 582 mSDtfsCounter, 4578 mSDsluCounter, 2489 mSDsCounter, 0 mSdLazyCounter, 3032 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4578 SdHoareTripleChecker+Valid, 3071 SdHoareTripleChecker+Invalid, 3064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 3032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:46:47,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4578 Valid, 3071 Invalid, 3064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 3032 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 15:46:47,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3997 states. [2024-11-13 15:46:47,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3997 to 2470. [2024-11-13 15:46:47,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2464 states have (on average 1.3636363636363635) internal successors, (3360), 2469 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:47,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3360 transitions. [2024-11-13 15:46:47,789 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3360 transitions. Word has length 52 [2024-11-13 15:46:47,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:46:47,790 INFO L471 AbstractCegarLoop]: Abstraction has 2470 states and 3360 transitions. [2024-11-13 15:46:47,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 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) [2024-11-13 15:46:47,790 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3360 transitions. [2024-11-13 15:46:47,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-13 15:46:47,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:46:47,793 INFO L215 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] [2024-11-13 15:46:47,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:46:47,793 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:46:47,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:47,794 INFO L85 PathProgramCache]: Analyzing trace with hash -592999742, now seen corresponding path program 1 times [2024-11-13 15:46:47,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:47,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816358047] [2024-11-13 15:46:47,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:47,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:47,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:46:48,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:48,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:46:48,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816358047] [2024-11-13 15:46:48,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816358047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:46:48,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:46:48,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:46:48,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357681763] [2024-11-13 15:46:48,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:46:48,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:46:48,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:46:48,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:46:48,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:46:48,210 INFO L87 Difference]: Start difference. First operand 2470 states and 3360 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 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) [2024-11-13 15:46:49,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:46:49,661 INFO L93 Difference]: Finished difference Result 3638 states and 5048 transitions. [2024-11-13 15:46:49,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 15:46:49,662 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 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 [2024-11-13 15:46:49,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:46:49,672 INFO L225 Difference]: With dead ends: 3638 [2024-11-13 15:46:49,673 INFO L226 Difference]: Without dead ends: 2991 [2024-11-13 15:46:49,675 INFO L431 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 [2024-11-13 15:46:49,675 INFO L432 NwaCegarLoop]: 504 mSDtfsCounter, 5067 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 1639 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5067 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:46:49,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5067 Valid, 1744 Invalid, 1650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1639 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 15:46:49,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2024-11-13 15:46:49,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 2470. [2024-11-13 15:46:49,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2464 states have (on average 1.3632305194805194) internal successors, (3359), 2469 states have internal predecessors, (3359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:49,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3359 transitions. [2024-11-13 15:46:49,745 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3359 transitions. Word has length 52 [2024-11-13 15:46:49,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:46:49,745 INFO L471 AbstractCegarLoop]: Abstraction has 2470 states and 3359 transitions. [2024-11-13 15:46:49,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 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) [2024-11-13 15:46:49,746 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3359 transitions. [2024-11-13 15:46:49,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-13 15:46:49,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:46:49,749 INFO L215 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] [2024-11-13 15:46:49,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:46:49,750 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:46:49,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:49,750 INFO L85 PathProgramCache]: Analyzing trace with hash 2034797542, now seen corresponding path program 1 times [2024-11-13 15:46:49,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:49,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119335309] [2024-11-13 15:46:49,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:49,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:46:49,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:49,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:46:49,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119335309] [2024-11-13 15:46:49,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119335309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:46:49,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:46:49,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:46:49,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103382316] [2024-11-13 15:46:49,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:46:49,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:46:49,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:46:49,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:46:49,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:46:49,847 INFO L87 Difference]: Start difference. First operand 2470 states and 3359 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2024-11-13 15:46:49,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:46:49,966 INFO L93 Difference]: Finished difference Result 3558 states and 4984 transitions. [2024-11-13 15:46:49,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:46:49,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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 [2024-11-13 15:46:49,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:46:49,974 INFO L225 Difference]: With dead ends: 3558 [2024-11-13 15:46:49,975 INFO L226 Difference]: Without dead ends: 2241 [2024-11-13 15:46:49,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:46:49,978 INFO L432 NwaCegarLoop]: 954 mSDtfsCounter, 622 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:46:49,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 1291 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:46:49,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2024-11-13 15:46:50,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 2239. [2024-11-13 15:46:50,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2239 states, 2233 states have (on average 1.353784146887595) internal successors, (3023), 2238 states have internal predecessors, (3023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:50,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2239 states to 2239 states and 3023 transitions. [2024-11-13 15:46:50,048 INFO L78 Accepts]: Start accepts. Automaton has 2239 states and 3023 transitions. Word has length 53 [2024-11-13 15:46:50,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:46:50,049 INFO L471 AbstractCegarLoop]: Abstraction has 2239 states and 3023 transitions. [2024-11-13 15:46:50,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2024-11-13 15:46:50,049 INFO L276 IsEmpty]: Start isEmpty. Operand 2239 states and 3023 transitions. [2024-11-13 15:46:50,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-13 15:46:50,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:46:50,052 INFO L215 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] [2024-11-13 15:46:50,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:46:50,052 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:46:50,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:50,053 INFO L85 PathProgramCache]: Analyzing trace with hash -512099954, now seen corresponding path program 1 times [2024-11-13 15:46:50,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:50,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770061214] [2024-11-13 15:46:50,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:50,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:50,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:46:50,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:50,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:46:50,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770061214] [2024-11-13 15:46:50,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770061214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:46:50,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:46:50,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:46:50,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113756375] [2024-11-13 15:46:50,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:46:50,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:46:50,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:46:50,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:46:50,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:46:50,182 INFO L87 Difference]: Start difference. First operand 2239 states and 3023 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2024-11-13 15:46:50,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:46:50,279 INFO L93 Difference]: Finished difference Result 3804 states and 5441 transitions. [2024-11-13 15:46:50,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:46:50,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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 [2024-11-13 15:46:50,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:46:50,290 INFO L225 Difference]: With dead ends: 3804 [2024-11-13 15:46:50,290 INFO L226 Difference]: Without dead ends: 2763 [2024-11-13 15:46:50,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:46:50,293 INFO L432 NwaCegarLoop]: 909 mSDtfsCounter, 457 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 1386 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:46:50,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 1386 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:46:50,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2024-11-13 15:46:50,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2761. [2024-11-13 15:46:50,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2761 states, 2755 states have (on average 1.3978221415607985) internal successors, (3851), 2760 states have internal predecessors, (3851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:50,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2761 states to 2761 states and 3851 transitions. [2024-11-13 15:46:50,359 INFO L78 Accepts]: Start accepts. Automaton has 2761 states and 3851 transitions. Word has length 53 [2024-11-13 15:46:50,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:46:50,361 INFO L471 AbstractCegarLoop]: Abstraction has 2761 states and 3851 transitions. [2024-11-13 15:46:50,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2024-11-13 15:46:50,361 INFO L276 IsEmpty]: Start isEmpty. Operand 2761 states and 3851 transitions. [2024-11-13 15:46:50,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-13 15:46:50,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:46:50,364 INFO L215 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] [2024-11-13 15:46:50,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 15:46:50,364 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:46:50,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:50,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1062086298, now seen corresponding path program 1 times [2024-11-13 15:46:50,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:50,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271336731] [2024-11-13 15:46:50,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:50,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:50,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:46:50,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:50,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:46:50,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271336731] [2024-11-13 15:46:50,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271336731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:46:50,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:46:50,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:46:50,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652520584] [2024-11-13 15:46:50,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:46:50,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:46:50,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:46:50,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:46:50,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:46:50,504 INFO L87 Difference]: Start difference. First operand 2761 states and 3851 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2024-11-13 15:46:50,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:46:50,592 INFO L93 Difference]: Finished difference Result 5591 states and 8154 transitions. [2024-11-13 15:46:50,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:46:50,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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 [2024-11-13 15:46:50,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:46:50,609 INFO L225 Difference]: With dead ends: 5591 [2024-11-13 15:46:50,612 INFO L226 Difference]: Without dead ends: 3827 [2024-11-13 15:46:50,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:46:50,618 INFO L432 NwaCegarLoop]: 912 mSDtfsCounter, 434 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:46:50,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 1400 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:46:50,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3827 states. [2024-11-13 15:46:50,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3827 to 3825. [2024-11-13 15:46:50,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3825 states, 3819 states have (on average 1.422623723487824) internal successors, (5433), 3824 states have internal predecessors, (5433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:50,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3825 states to 3825 states and 5433 transitions. [2024-11-13 15:46:50,703 INFO L78 Accepts]: Start accepts. Automaton has 3825 states and 5433 transitions. Word has length 53 [2024-11-13 15:46:50,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:46:50,704 INFO L471 AbstractCegarLoop]: Abstraction has 3825 states and 5433 transitions. [2024-11-13 15:46:50,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2024-11-13 15:46:50,704 INFO L276 IsEmpty]: Start isEmpty. Operand 3825 states and 5433 transitions. [2024-11-13 15:46:50,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-13 15:46:50,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:46:50,707 INFO L215 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] [2024-11-13 15:46:50,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 15:46:50,707 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:46:50,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:50,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1383066013, now seen corresponding path program 1 times [2024-11-13 15:46:50,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:50,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698695885] [2024-11-13 15:46:50,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:50,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:50,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:46:50,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:50,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:46:50,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698695885] [2024-11-13 15:46:50,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698695885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:46:50,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:46:50,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:46:50,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644710226] [2024-11-13 15:46:50,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:46:50,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:46:50,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:46:50,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:46:50,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:46:50,794 INFO L87 Difference]: Start difference. First operand 3825 states and 5433 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:50,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:46:50,931 INFO L93 Difference]: Finished difference Result 7514 states and 10894 transitions. [2024-11-13 15:46:50,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:46:50,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2024-11-13 15:46:50,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:46:50,945 INFO L225 Difference]: With dead ends: 7514 [2024-11-13 15:46:50,946 INFO L226 Difference]: Without dead ends: 4238 [2024-11-13 15:46:50,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:46:50,950 INFO L432 NwaCegarLoop]: 697 mSDtfsCounter, 645 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:46:50,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 974 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:46:50,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4238 states. [2024-11-13 15:46:51,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4238 to 3413. [2024-11-13 15:46:51,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3413 states, 3408 states have (on average 1.4360328638497653) internal successors, (4894), 3412 states have internal predecessors, (4894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:51,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3413 states to 3413 states and 4894 transitions. [2024-11-13 15:46:51,021 INFO L78 Accepts]: Start accepts. Automaton has 3413 states and 4894 transitions. Word has length 54 [2024-11-13 15:46:51,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:46:51,022 INFO L471 AbstractCegarLoop]: Abstraction has 3413 states and 4894 transitions. [2024-11-13 15:46:51,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:51,022 INFO L276 IsEmpty]: Start isEmpty. Operand 3413 states and 4894 transitions. [2024-11-13 15:46:51,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-13 15:46:51,024 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:46:51,024 INFO L215 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] [2024-11-13 15:46:51,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 15:46:51,024 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:46:51,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:51,025 INFO L85 PathProgramCache]: Analyzing trace with hash -111097732, now seen corresponding path program 1 times [2024-11-13 15:46:51,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:51,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147873190] [2024-11-13 15:46:51,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:51,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:51,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:46:51,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:51,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:46:51,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147873190] [2024-11-13 15:46:51,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147873190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:46:51,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:46:51,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:46:51,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977651783] [2024-11-13 15:46:51,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:46:51,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:46:51,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:46:51,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:46:51,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:46:51,106 INFO L87 Difference]: Start difference. First operand 3413 states and 4894 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:51,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:46:51,213 INFO L93 Difference]: Finished difference Result 6968 states and 10156 transitions. [2024-11-13 15:46:51,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:46:51,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2024-11-13 15:46:51,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:46:51,222 INFO L225 Difference]: With dead ends: 6968 [2024-11-13 15:46:51,223 INFO L226 Difference]: Without dead ends: 3921 [2024-11-13 15:46:51,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:46:51,227 INFO L432 NwaCegarLoop]: 536 mSDtfsCounter, 523 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:46:51,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 737 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:46:51,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3921 states. [2024-11-13 15:46:51,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3921 to 3157. [2024-11-13 15:46:51,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3157 states, 3153 states have (on average 1.4487789406914051) internal successors, (4568), 3156 states have internal predecessors, (4568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:51,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3157 states to 3157 states and 4568 transitions. [2024-11-13 15:46:51,292 INFO L78 Accepts]: Start accepts. Automaton has 3157 states and 4568 transitions. Word has length 54 [2024-11-13 15:46:51,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:46:51,292 INFO L471 AbstractCegarLoop]: Abstraction has 3157 states and 4568 transitions. [2024-11-13 15:46:51,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:51,293 INFO L276 IsEmpty]: Start isEmpty. Operand 3157 states and 4568 transitions. [2024-11-13 15:46:51,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-13 15:46:51,294 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:46:51,294 INFO L215 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] [2024-11-13 15:46:51,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 15:46:51,295 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:46:51,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:51,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1920628919, now seen corresponding path program 1 times [2024-11-13 15:46:51,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:51,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133466198] [2024-11-13 15:46:51,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:51,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:46:52,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:52,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:46:52,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133466198] [2024-11-13 15:46:52,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133466198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:46:52,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:46:52,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 15:46:52,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162247386] [2024-11-13 15:46:52,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:46:52,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 15:46:52,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:46:52,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 15:46:52,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-13 15:46:52,184 INFO L87 Difference]: Start difference. First operand 3157 states and 4568 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 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) [2024-11-13 15:46:53,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:46:53,532 INFO L93 Difference]: Finished difference Result 5037 states and 7269 transitions. [2024-11-13 15:46:53,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 15:46:53,533 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 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 [2024-11-13 15:46:53,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:46:53,544 INFO L225 Difference]: With dead ends: 5037 [2024-11-13 15:46:53,544 INFO L226 Difference]: Without dead ends: 4976 [2024-11-13 15:46:53,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-13 15:46:53,547 INFO L432 NwaCegarLoop]: 657 mSDtfsCounter, 3454 mSDsluCounter, 2879 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3454 SdHoareTripleChecker+Valid, 3536 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:46:53,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3454 Valid, 3536 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 15:46:53,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4976 states. [2024-11-13 15:46:53,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4976 to 3145. [2024-11-13 15:46:53,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3145 states, 3142 states have (on average 1.449395289624443) internal successors, (4554), 3144 states have internal predecessors, (4554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:53,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3145 states to 3145 states and 4554 transitions. [2024-11-13 15:46:53,682 INFO L78 Accepts]: Start accepts. Automaton has 3145 states and 4554 transitions. Word has length 55 [2024-11-13 15:46:53,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:46:53,682 INFO L471 AbstractCegarLoop]: Abstraction has 3145 states and 4554 transitions. [2024-11-13 15:46:53,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 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) [2024-11-13 15:46:53,682 INFO L276 IsEmpty]: Start isEmpty. Operand 3145 states and 4554 transitions. [2024-11-13 15:46:53,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-13 15:46:53,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:46:53,686 INFO L215 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] [2024-11-13 15:46:53,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 15:46:53,688 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:46:53,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:53,689 INFO L85 PathProgramCache]: Analyzing trace with hash -2018662677, now seen corresponding path program 1 times [2024-11-13 15:46:53,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:53,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078609620] [2024-11-13 15:46:53,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:53,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:53,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:46:54,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:54,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:46:54,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078609620] [2024-11-13 15:46:54,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078609620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:46:54,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:46:54,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 15:46:54,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770898772] [2024-11-13 15:46:54,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:46:54,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 15:46:54,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:46:54,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:46:54,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:46:54,505 INFO L87 Difference]: Start difference. First operand 3145 states and 4554 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) [2024-11-13 15:46:55,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:46:55,637 INFO L93 Difference]: Finished difference Result 6576 states and 9566 transitions. [2024-11-13 15:46:55,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:46:55,638 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 [2024-11-13 15:46:55,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:46:55,653 INFO L225 Difference]: With dead ends: 6576 [2024-11-13 15:46:55,653 INFO L226 Difference]: Without dead ends: 6492 [2024-11-13 15:46:55,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2024-11-13 15:46:55,656 INFO L432 NwaCegarLoop]: 506 mSDtfsCounter, 3295 mSDsluCounter, 2119 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3295 SdHoareTripleChecker+Valid, 2625 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:46:55,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3295 Valid, 2625 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 15:46:55,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6492 states. [2024-11-13 15:46:55,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6492 to 3110. [2024-11-13 15:46:55,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3110 states, 3108 states have (on average 1.4507722007722008) internal successors, (4509), 3109 states have internal predecessors, (4509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:55,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3110 states to 3110 states and 4509 transitions. [2024-11-13 15:46:55,770 INFO L78 Accepts]: Start accepts. Automaton has 3110 states and 4509 transitions. Word has length 55 [2024-11-13 15:46:55,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:46:55,771 INFO L471 AbstractCegarLoop]: Abstraction has 3110 states and 4509 transitions. [2024-11-13 15:46:55,771 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) [2024-11-13 15:46:55,771 INFO L276 IsEmpty]: Start isEmpty. Operand 3110 states and 4509 transitions. [2024-11-13 15:46:55,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-13 15:46:55,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:46:55,772 INFO L215 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] [2024-11-13 15:46:55,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 15:46:55,773 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:46:55,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:55,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1431726049, now seen corresponding path program 1 times [2024-11-13 15:46:55,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:55,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956978623] [2024-11-13 15:46:55,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:55,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:55,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:46:56,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:56,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:46:56,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956978623] [2024-11-13 15:46:56,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956978623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:46:56,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:46:56,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 15:46:56,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429029218] [2024-11-13 15:46:56,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:46:56,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 15:46:56,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:46:56,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 15:46:56,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-13 15:46:56,498 INFO L87 Difference]: Start difference. First operand 3110 states and 4509 transitions. Second operand has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 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) [2024-11-13 15:46:57,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:46:57,742 INFO L93 Difference]: Finished difference Result 4961 states and 7173 transitions. [2024-11-13 15:46:57,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:46:57,742 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 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 [2024-11-13 15:46:57,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:46:57,784 INFO L225 Difference]: With dead ends: 4961 [2024-11-13 15:46:57,785 INFO L226 Difference]: Without dead ends: 4884 [2024-11-13 15:46:57,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2024-11-13 15:46:57,787 INFO L432 NwaCegarLoop]: 558 mSDtfsCounter, 2431 mSDsluCounter, 2532 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2431 SdHoareTripleChecker+Valid, 3090 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:46:57,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2431 Valid, 3090 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 15:46:57,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4884 states. [2024-11-13 15:46:57,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4884 to 3082. [2024-11-13 15:46:57,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3082 states, 3081 states have (on average 1.4514767932489452) internal successors, (4472), 3081 states have internal predecessors, (4472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:57,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3082 states to 3082 states and 4472 transitions. [2024-11-13 15:46:57,856 INFO L78 Accepts]: Start accepts. Automaton has 3082 states and 4472 transitions. Word has length 55 [2024-11-13 15:46:57,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:46:57,857 INFO L471 AbstractCegarLoop]: Abstraction has 3082 states and 4472 transitions. [2024-11-13 15:46:57,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 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) [2024-11-13 15:46:57,857 INFO L276 IsEmpty]: Start isEmpty. Operand 3082 states and 4472 transitions. [2024-11-13 15:46:57,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-13 15:46:57,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:46:57,859 INFO L215 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] [2024-11-13 15:46:57,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 15:46:57,859 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:46:57,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:57,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1827161320, now seen corresponding path program 1 times [2024-11-13 15:46:57,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:57,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382638320] [2024-11-13 15:46:57,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:57,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:46:58,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:58,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:46:58,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382638320] [2024-11-13 15:46:58,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382638320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:46:58,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:46:58,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:46:58,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939157264] [2024-11-13 15:46:58,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:46:58,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:46:58,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:46:58,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:46:58,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:46:58,012 INFO L87 Difference]: Start difference. First operand 3082 states and 4472 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:58,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:46:58,154 INFO L93 Difference]: Finished difference Result 9845 states and 14575 transitions. [2024-11-13 15:46:58,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:46:58,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-13 15:46:58,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:46:58,172 INFO L225 Difference]: With dead ends: 9845 [2024-11-13 15:46:58,173 INFO L226 Difference]: Without dead ends: 7219 [2024-11-13 15:46:58,177 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:46:58,177 INFO L432 NwaCegarLoop]: 469 mSDtfsCounter, 1424 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1424 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:46:58,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1424 Valid, 885 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:46:58,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7219 states. [2024-11-13 15:46:58,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7219 to 5428. [2024-11-13 15:46:58,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5428 states, 5427 states have (on average 1.4479454578957067) internal successors, (7858), 5427 states have internal predecessors, (7858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:58,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5428 states to 5428 states and 7858 transitions. [2024-11-13 15:46:58,292 INFO L78 Accepts]: Start accepts. Automaton has 5428 states and 7858 transitions. Word has length 60 [2024-11-13 15:46:58,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:46:58,293 INFO L471 AbstractCegarLoop]: Abstraction has 5428 states and 7858 transitions. [2024-11-13 15:46:58,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:58,293 INFO L276 IsEmpty]: Start isEmpty. Operand 5428 states and 7858 transitions. [2024-11-13 15:46:58,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-13 15:46:58,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:46:58,296 INFO L215 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] [2024-11-13 15:46:58,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 15:46:58,296 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:46:58,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:58,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1073283694, now seen corresponding path program 1 times [2024-11-13 15:46:58,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:58,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931220754] [2024-11-13 15:46:58,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:58,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:46:58,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:58,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:46:58,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931220754] [2024-11-13 15:46:58,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931220754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:46:58,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:46:58,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:46:58,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898740085] [2024-11-13 15:46:58,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:46:58,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:46:58,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:46:58,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:46:58,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:46:58,446 INFO L87 Difference]: Start difference. First operand 5428 states and 7858 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:58,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:46:58,573 INFO L93 Difference]: Finished difference Result 8576 states and 12451 transitions. [2024-11-13 15:46:58,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:46:58,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-13 15:46:58,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:46:58,583 INFO L225 Difference]: With dead ends: 8576 [2024-11-13 15:46:58,583 INFO L226 Difference]: Without dead ends: 3574 [2024-11-13 15:46:58,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:46:58,588 INFO L432 NwaCegarLoop]: 414 mSDtfsCounter, 1237 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1237 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:46:58,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1237 Valid, 684 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:46:58,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3574 states. [2024-11-13 15:46:58,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3574 to 3570. [2024-11-13 15:46:58,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3570 states, 3569 states have (on average 1.422527318576632) internal successors, (5077), 3569 states have internal predecessors, (5077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:58,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3570 states to 3570 states and 5077 transitions. [2024-11-13 15:46:58,642 INFO L78 Accepts]: Start accepts. Automaton has 3570 states and 5077 transitions. Word has length 61 [2024-11-13 15:46:58,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:46:58,643 INFO L471 AbstractCegarLoop]: Abstraction has 3570 states and 5077 transitions. [2024-11-13 15:46:58,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:58,643 INFO L276 IsEmpty]: Start isEmpty. Operand 3570 states and 5077 transitions. [2024-11-13 15:46:58,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-13 15:46:58,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:46:58,646 INFO L215 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] [2024-11-13 15:46:58,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 15:46:58,646 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:46:58,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:58,647 INFO L85 PathProgramCache]: Analyzing trace with hash 778828119, now seen corresponding path program 1 times [2024-11-13 15:46:58,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:58,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656917459] [2024-11-13 15:46:58,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:58,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:46:58,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:58,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:46:58,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656917459] [2024-11-13 15:46:58,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656917459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:46:58,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:46:58,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:46:58,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006371074] [2024-11-13 15:46:58,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:46:58,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:46:58,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:46:58,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:46:58,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:46:58,821 INFO L87 Difference]: Start difference. First operand 3570 states and 5077 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:58,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:46:58,917 INFO L93 Difference]: Finished difference Result 9544 states and 13751 transitions. [2024-11-13 15:46:58,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:46:58,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-13 15:46:58,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:46:58,933 INFO L225 Difference]: With dead ends: 9544 [2024-11-13 15:46:58,934 INFO L226 Difference]: Without dead ends: 6400 [2024-11-13 15:46:58,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:46:58,939 INFO L432 NwaCegarLoop]: 475 mSDtfsCounter, 217 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:46:58,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 727 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:46:58,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6400 states. [2024-11-13 15:46:59,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6400 to 5982. [2024-11-13 15:46:59,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5982 states, 5981 states have (on average 1.4276876776458787) internal successors, (8539), 5981 states have internal predecessors, (8539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:59,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5982 states to 5982 states and 8539 transitions. [2024-11-13 15:46:59,043 INFO L78 Accepts]: Start accepts. Automaton has 5982 states and 8539 transitions. Word has length 61 [2024-11-13 15:46:59,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:46:59,043 INFO L471 AbstractCegarLoop]: Abstraction has 5982 states and 8539 transitions. [2024-11-13 15:46:59,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:59,044 INFO L276 IsEmpty]: Start isEmpty. Operand 5982 states and 8539 transitions. [2024-11-13 15:46:59,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-13 15:46:59,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:46:59,046 INFO L215 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] [2024-11-13 15:46:59,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 15:46:59,047 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:46:59,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:59,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1461952547, now seen corresponding path program 1 times [2024-11-13 15:46:59,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:59,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619655262] [2024-11-13 15:46:59,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:59,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:59,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:46:59,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:59,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:46:59,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619655262] [2024-11-13 15:46:59,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619655262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:46:59,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:46:59,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:46:59,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262122800] [2024-11-13 15:46:59,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:46:59,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:46:59,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:46:59,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:46:59,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:46:59,360 INFO L87 Difference]: Start difference. First operand 5982 states and 8539 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:59,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:46:59,410 INFO L93 Difference]: Finished difference Result 6428 states and 9132 transitions. [2024-11-13 15:46:59,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:46:59,411 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-11-13 15:46:59,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:46:59,425 INFO L225 Difference]: With dead ends: 6428 [2024-11-13 15:46:59,425 INFO L226 Difference]: Without dead ends: 6426 [2024-11-13 15:46:59,427 INFO L431 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 [2024-11-13 15:46:59,428 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 0 mSDsluCounter, 1738 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2175 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:46:59,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2175 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:46:59,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6426 states. [2024-11-13 15:46:59,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6426 to 6426. [2024-11-13 15:46:59,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6426 states, 6425 states have (on average 1.3981322957198443) internal successors, (8983), 6425 states have internal predecessors, (8983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:59,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6426 states to 6426 states and 8983 transitions. [2024-11-13 15:46:59,533 INFO L78 Accepts]: Start accepts. Automaton has 6426 states and 8983 transitions. Word has length 64 [2024-11-13 15:46:59,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:46:59,533 INFO L471 AbstractCegarLoop]: Abstraction has 6426 states and 8983 transitions. [2024-11-13 15:46:59,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:59,534 INFO L276 IsEmpty]: Start isEmpty. Operand 6426 states and 8983 transitions. [2024-11-13 15:46:59,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 15:46:59,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:46:59,537 INFO L215 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] [2024-11-13 15:46:59,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 15:46:59,537 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:46:59,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:46:59,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1754067009, now seen corresponding path program 1 times [2024-11-13 15:46:59,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:46:59,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753213172] [2024-11-13 15:46:59,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:46:59,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:46:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:46:59,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:46:59,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:46:59,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753213172] [2024-11-13 15:46:59,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753213172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:46:59,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:46:59,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:46:59,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754576357] [2024-11-13 15:46:59,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:46:59,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:46:59,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:46:59,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:46:59,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:46:59,635 INFO L87 Difference]: Start difference. First operand 6426 states and 8983 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:46:59,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:46:59,800 INFO L93 Difference]: Finished difference Result 17212 states and 24230 transitions. [2024-11-13 15:46:59,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:46:59,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-13 15:46:59,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:46:59,829 INFO L225 Difference]: With dead ends: 17212 [2024-11-13 15:46:59,830 INFO L226 Difference]: Without dead ends: 11206 [2024-11-13 15:46:59,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:46:59,838 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 252 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:46:59,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 645 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:46:59,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11206 states. [2024-11-13 15:47:00,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11206 to 11056. [2024-11-13 15:47:00,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11056 states, 11055 states have (on average 1.3819990954319312) internal successors, (15278), 11055 states have internal predecessors, (15278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:00,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11056 states to 11056 states and 15278 transitions. [2024-11-13 15:47:00,091 INFO L78 Accepts]: Start accepts. Automaton has 11056 states and 15278 transitions. Word has length 65 [2024-11-13 15:47:00,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:47:00,091 INFO L471 AbstractCegarLoop]: Abstraction has 11056 states and 15278 transitions. [2024-11-13 15:47:00,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:00,091 INFO L276 IsEmpty]: Start isEmpty. Operand 11056 states and 15278 transitions. [2024-11-13 15:47:00,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-13 15:47:00,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:47:00,093 INFO L215 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] [2024-11-13 15:47:00,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 15:47:00,094 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:47:00,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:47:00,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1595040439, now seen corresponding path program 1 times [2024-11-13 15:47:00,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:47:00,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226529429] [2024-11-13 15:47:00,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:00,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:47:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:00,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:47:00,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:47:00,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226529429] [2024-11-13 15:47:00,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226529429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:47:00,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:47:00,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:47:00,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153567256] [2024-11-13 15:47:00,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:47:00,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:47:00,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:47:00,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:47:00,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:47:00,250 INFO L87 Difference]: Start difference. First operand 11056 states and 15278 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:00,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:47:00,439 INFO L93 Difference]: Finished difference Result 19399 states and 26921 transitions. [2024-11-13 15:47:00,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:47:00,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-11-13 15:47:00,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:47:00,479 INFO L225 Difference]: With dead ends: 19399 [2024-11-13 15:47:00,480 INFO L226 Difference]: Without dead ends: 15945 [2024-11-13 15:47:00,487 INFO L431 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 [2024-11-13 15:47:00,488 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 922 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:47:00,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 1118 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:47:00,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15945 states. [2024-11-13 15:47:00,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15945 to 13843. [2024-11-13 15:47:00,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13843 states, 13842 states have (on average 1.3786302557433896) internal successors, (19083), 13842 states have internal predecessors, (19083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:00,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13843 states to 13843 states and 19083 transitions. [2024-11-13 15:47:00,754 INFO L78 Accepts]: Start accepts. Automaton has 13843 states and 19083 transitions. Word has length 66 [2024-11-13 15:47:00,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:47:00,754 INFO L471 AbstractCegarLoop]: Abstraction has 13843 states and 19083 transitions. [2024-11-13 15:47:00,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:00,755 INFO L276 IsEmpty]: Start isEmpty. Operand 13843 states and 19083 transitions. [2024-11-13 15:47:00,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 15:47:00,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:47:00,759 INFO L215 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] [2024-11-13 15:47:00,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 15:47:00,759 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:47:00,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:47:00,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1924581840, now seen corresponding path program 1 times [2024-11-13 15:47:00,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:47:00,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575816362] [2024-11-13 15:47:00,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:00,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:47:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:00,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:47:00,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:47:00,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575816362] [2024-11-13 15:47:00,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575816362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:47:00,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:47:00,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:47:00,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034613355] [2024-11-13 15:47:00,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:47:00,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:47:00,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:47:00,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:47:00,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:47:00,869 INFO L87 Difference]: Start difference. First operand 13843 states and 19083 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:01,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:47:01,044 INFO L93 Difference]: Finished difference Result 16705 states and 22969 transitions. [2024-11-13 15:47:01,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:47:01,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-11-13 15:47:01,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:47:01,069 INFO L225 Difference]: With dead ends: 16705 [2024-11-13 15:47:01,069 INFO L226 Difference]: Without dead ends: 10969 [2024-11-13 15:47:01,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:47:01,077 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 175 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:47:01,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 764 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:47:01,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10969 states. [2024-11-13 15:47:01,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10969 to 10898. [2024-11-13 15:47:01,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10898 states, 10897 states have (on average 1.3538588602367625) internal successors, (14753), 10897 states have internal predecessors, (14753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:01,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10898 states to 10898 states and 14753 transitions. [2024-11-13 15:47:01,237 INFO L78 Accepts]: Start accepts. Automaton has 10898 states and 14753 transitions. Word has length 67 [2024-11-13 15:47:01,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:47:01,239 INFO L471 AbstractCegarLoop]: Abstraction has 10898 states and 14753 transitions. [2024-11-13 15:47:01,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:01,240 INFO L276 IsEmpty]: Start isEmpty. Operand 10898 states and 14753 transitions. [2024-11-13 15:47:01,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 15:47:01,242 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:47:01,242 INFO L215 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] [2024-11-13 15:47:01,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-13 15:47:01,244 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:47:01,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:47:01,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1353553607, now seen corresponding path program 1 times [2024-11-13 15:47:01,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:47:01,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915942397] [2024-11-13 15:47:01,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:01,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:47:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:01,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:47:01,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:47:01,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915942397] [2024-11-13 15:47:01,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915942397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:47:01,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:47:01,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:47:01,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020827442] [2024-11-13 15:47:01,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:47:01,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:47:01,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:47:01,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:47:01,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:47:01,414 INFO L87 Difference]: Start difference. First operand 10898 states and 14753 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:01,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:47:01,570 INFO L93 Difference]: Finished difference Result 15746 states and 21469 transitions. [2024-11-13 15:47:01,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:47:01,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-13 15:47:01,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:47:01,604 INFO L225 Difference]: With dead ends: 15746 [2024-11-13 15:47:01,604 INFO L226 Difference]: Without dead ends: 13328 [2024-11-13 15:47:01,610 INFO L431 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 [2024-11-13 15:47:01,612 INFO L432 NwaCegarLoop]: 505 mSDtfsCounter, 844 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:47:01,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 1087 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:47:01,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13328 states. [2024-11-13 15:47:01,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13328 to 12666. [2024-11-13 15:47:01,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12666 states, 12665 states have (on average 1.3534149230161863) internal successors, (17141), 12665 states have internal predecessors, (17141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:01,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12666 states to 12666 states and 17141 transitions. [2024-11-13 15:47:01,818 INFO L78 Accepts]: Start accepts. Automaton has 12666 states and 17141 transitions. Word has length 69 [2024-11-13 15:47:01,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:47:01,818 INFO L471 AbstractCegarLoop]: Abstraction has 12666 states and 17141 transitions. [2024-11-13 15:47:01,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:01,818 INFO L276 IsEmpty]: Start isEmpty. Operand 12666 states and 17141 transitions. [2024-11-13 15:47:01,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 15:47:01,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:47:01,821 INFO L215 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] [2024-11-13 15:47:01,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-13 15:47:01,822 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:47:01,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:47:01,822 INFO L85 PathProgramCache]: Analyzing trace with hash -537948960, now seen corresponding path program 1 times [2024-11-13 15:47:01,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:47:01,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850415832] [2024-11-13 15:47:01,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:01,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:47:01,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:02,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:47:02,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:47:02,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850415832] [2024-11-13 15:47:02,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850415832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:47:02,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:47:02,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:47:02,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935609369] [2024-11-13 15:47:02,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:47:02,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:47:02,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:47:02,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:47:02,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:47:02,060 INFO L87 Difference]: Start difference. First operand 12666 states and 17141 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:02,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:47:02,857 INFO L93 Difference]: Finished difference Result 30166 states and 41099 transitions. [2024-11-13 15:47:02,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 15:47:02,858 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-13 15:47:02,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:47:02,914 INFO L225 Difference]: With dead ends: 30166 [2024-11-13 15:47:02,914 INFO L226 Difference]: Without dead ends: 22572 [2024-11-13 15:47:02,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:47:02,927 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 1988 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1988 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:47:02,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1988 Valid, 589 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 15:47:02,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22572 states. [2024-11-13 15:47:03,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22572 to 15042. [2024-11-13 15:47:03,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15042 states, 15041 states have (on average 1.3447909048600493) internal successors, (20227), 15041 states have internal predecessors, (20227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:03,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15042 states to 15042 states and 20227 transitions. [2024-11-13 15:47:03,187 INFO L78 Accepts]: Start accepts. Automaton has 15042 states and 20227 transitions. Word has length 69 [2024-11-13 15:47:03,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:47:03,187 INFO L471 AbstractCegarLoop]: Abstraction has 15042 states and 20227 transitions. [2024-11-13 15:47:03,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:03,188 INFO L276 IsEmpty]: Start isEmpty. Operand 15042 states and 20227 transitions. [2024-11-13 15:47:03,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-13 15:47:03,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:47:03,191 INFO L215 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] [2024-11-13 15:47:03,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-13 15:47:03,191 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:47:03,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:47:03,191 INFO L85 PathProgramCache]: Analyzing trace with hash -954661067, now seen corresponding path program 1 times [2024-11-13 15:47:03,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:47:03,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52380967] [2024-11-13 15:47:03,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:03,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:47:03,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:03,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:47:03,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:47:03,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52380967] [2024-11-13 15:47:03,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52380967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:47:03,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:47:03,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:47:03,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775033394] [2024-11-13 15:47:03,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:47:03,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:47:03,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:47:03,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:47:03,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:47:03,327 INFO L87 Difference]: Start difference. First operand 15042 states and 20227 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:03,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:47:03,487 INFO L93 Difference]: Finished difference Result 23466 states and 31761 transitions. [2024-11-13 15:47:03,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:47:03,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-13 15:47:03,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:47:03,529 INFO L225 Difference]: With dead ends: 23466 [2024-11-13 15:47:03,529 INFO L226 Difference]: Without dead ends: 19536 [2024-11-13 15:47:03,537 INFO L431 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 [2024-11-13 15:47:03,538 INFO L432 NwaCegarLoop]: 511 mSDtfsCounter, 853 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:47:03,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [853 Valid, 1138 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:47:03,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19536 states. [2024-11-13 15:47:03,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19536 to 18286. [2024-11-13 15:47:03,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18286 states, 18285 states have (on average 1.3446540880503144) internal successors, (24587), 18285 states have internal predecessors, (24587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:03,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18286 states to 18286 states and 24587 transitions. [2024-11-13 15:47:03,864 INFO L78 Accepts]: Start accepts. Automaton has 18286 states and 24587 transitions. Word has length 71 [2024-11-13 15:47:03,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:47:03,866 INFO L471 AbstractCegarLoop]: Abstraction has 18286 states and 24587 transitions. [2024-11-13 15:47:03,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:03,866 INFO L276 IsEmpty]: Start isEmpty. Operand 18286 states and 24587 transitions. [2024-11-13 15:47:03,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-13 15:47:03,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:47:03,871 INFO L215 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] [2024-11-13 15:47:03,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-13 15:47:03,871 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:47:03,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:47:03,873 INFO L85 PathProgramCache]: Analyzing trace with hash 531488628, now seen corresponding path program 1 times [2024-11-13 15:47:03,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:47:03,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499019613] [2024-11-13 15:47:03,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:03,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:47:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:04,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:47:04,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:47:04,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499019613] [2024-11-13 15:47:04,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499019613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:47:04,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:47:04,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:47:04,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134787655] [2024-11-13 15:47:04,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:47:04,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:47:04,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:47:04,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:47:04,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:47:04,053 INFO L87 Difference]: Start difference. First operand 18286 states and 24587 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 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) [2024-11-13 15:47:04,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:47:04,264 INFO L93 Difference]: Finished difference Result 28176 states and 38014 transitions. [2024-11-13 15:47:04,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:47:04,264 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 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 [2024-11-13 15:47:04,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:47:04,311 INFO L225 Difference]: With dead ends: 28176 [2024-11-13 15:47:04,311 INFO L226 Difference]: Without dead ends: 22898 [2024-11-13 15:47:04,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:47:04,320 INFO L432 NwaCegarLoop]: 468 mSDtfsCounter, 1062 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:47:04,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1062 Valid, 1013 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:47:04,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22898 states. [2024-11-13 15:47:04,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22898 to 21602. [2024-11-13 15:47:04,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21602 states, 21601 states have (on average 1.3481320309244942) internal successors, (29121), 21601 states have internal predecessors, (29121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:04,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21602 states to 21602 states and 29121 transitions. [2024-11-13 15:47:04,709 INFO L78 Accepts]: Start accepts. Automaton has 21602 states and 29121 transitions. Word has length 77 [2024-11-13 15:47:04,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:47:04,709 INFO L471 AbstractCegarLoop]: Abstraction has 21602 states and 29121 transitions. [2024-11-13 15:47:04,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:04,710 INFO L276 IsEmpty]: Start isEmpty. Operand 21602 states and 29121 transitions. [2024-11-13 15:47:04,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-13 15:47:04,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:47:04,716 INFO L215 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] [2024-11-13 15:47:04,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-13 15:47:04,716 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:47:04,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:47:04,717 INFO L85 PathProgramCache]: Analyzing trace with hash -545955295, now seen corresponding path program 1 times [2024-11-13 15:47:04,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:47:04,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677559263] [2024-11-13 15:47:04,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:04,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:47:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:04,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:47:04,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:47:04,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677559263] [2024-11-13 15:47:04,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677559263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:47:04,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:47:04,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:47:04,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662448966] [2024-11-13 15:47:04,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:47:04,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:47:04,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:47:04,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:47:04,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:47:04,923 INFO L87 Difference]: Start difference. First operand 21602 states and 29121 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 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) [2024-11-13 15:47:05,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:47:05,605 INFO L93 Difference]: Finished difference Result 25055 states and 33678 transitions. [2024-11-13 15:47:05,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 15:47:05,605 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 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 [2024-11-13 15:47:05,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:47:05,661 INFO L225 Difference]: With dead ends: 25055 [2024-11-13 15:47:05,661 INFO L226 Difference]: Without dead ends: 23887 [2024-11-13 15:47:05,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-13 15:47:05,674 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 1779 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1779 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:47:05,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1779 Valid, 529 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 15:47:05,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23887 states. [2024-11-13 15:47:06,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23887 to 21601. [2024-11-13 15:47:06,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21601 states, 21600 states have (on average 1.3480555555555556) internal successors, (29118), 21600 states have internal predecessors, (29118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:06,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21601 states to 21601 states and 29118 transitions. [2024-11-13 15:47:06,124 INFO L78 Accepts]: Start accepts. Automaton has 21601 states and 29118 transitions. Word has length 78 [2024-11-13 15:47:06,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:47:06,124 INFO L471 AbstractCegarLoop]: Abstraction has 21601 states and 29118 transitions. [2024-11-13 15:47:06,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 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) [2024-11-13 15:47:06,126 INFO L276 IsEmpty]: Start isEmpty. Operand 21601 states and 29118 transitions. [2024-11-13 15:47:06,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-13 15:47:06,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:47:06,136 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:47:06,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-13 15:47:06,137 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:47:06,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:47:06,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1613016119, now seen corresponding path program 1 times [2024-11-13 15:47:06,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:47:06,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612546690] [2024-11-13 15:47:06,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:06,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:47:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:06,523 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 15:47:06,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:47:06,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612546690] [2024-11-13 15:47:06,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612546690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:47:06,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:47:06,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 15:47:06,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324276732] [2024-11-13 15:47:06,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:47:06,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:47:06,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:47:06,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:47:06,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:47:06,526 INFO L87 Difference]: Start difference. First operand 21601 states and 29118 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 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) [2024-11-13 15:47:08,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:47:08,100 INFO L93 Difference]: Finished difference Result 61039 states and 82123 transitions. [2024-11-13 15:47:08,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:47:08,101 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 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 84 [2024-11-13 15:47:08,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:47:08,181 INFO L225 Difference]: With dead ends: 61039 [2024-11-13 15:47:08,181 INFO L226 Difference]: Without dead ends: 45277 [2024-11-13 15:47:08,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2024-11-13 15:47:08,202 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 1663 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1663 SdHoareTripleChecker+Valid, 1371 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:47:08,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1663 Valid, 1371 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 15:47:08,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45277 states. [2024-11-13 15:47:08,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45277 to 21589. [2024-11-13 15:47:08,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21589 states, 21588 states have (on average 1.3482027052065964) internal successors, (29105), 21588 states have internal predecessors, (29105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:08,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21589 states to 21589 states and 29105 transitions. [2024-11-13 15:47:08,692 INFO L78 Accepts]: Start accepts. Automaton has 21589 states and 29105 transitions. Word has length 84 [2024-11-13 15:47:08,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:47:08,692 INFO L471 AbstractCegarLoop]: Abstraction has 21589 states and 29105 transitions. [2024-11-13 15:47:08,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 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) [2024-11-13 15:47:08,693 INFO L276 IsEmpty]: Start isEmpty. Operand 21589 states and 29105 transitions. [2024-11-13 15:47:08,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-13 15:47:08,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:47:08,703 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:47:08,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-13 15:47:08,704 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:47:08,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:47:08,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1808244407, now seen corresponding path program 1 times [2024-11-13 15:47:08,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:47:08,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634669408] [2024-11-13 15:47:08,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:08,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:47:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:09,085 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 15:47:09,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:47:09,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634669408] [2024-11-13 15:47:09,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634669408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:47:09,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:47:09,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:47:09,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050901686] [2024-11-13 15:47:09,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:47:09,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:47:09,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:47:09,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:47:09,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:47:09,088 INFO L87 Difference]: Start difference. First operand 21589 states and 29105 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 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) [2024-11-13 15:47:10,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:47:10,090 INFO L93 Difference]: Finished difference Result 52881 states and 71292 transitions. [2024-11-13 15:47:10,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 15:47:10,091 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 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 84 [2024-11-13 15:47:10,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:47:10,302 INFO L225 Difference]: With dead ends: 52881 [2024-11-13 15:47:10,302 INFO L226 Difference]: Without dead ends: 49640 [2024-11-13 15:47:10,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:47:10,312 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 1407 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1407 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:47:10,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1407 Valid, 963 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 15:47:10,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49640 states. [2024-11-13 15:47:10,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49640 to 21102. [2024-11-13 15:47:10,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21102 states, 21101 states have (on average 1.348419506184541) internal successors, (28453), 21101 states have internal predecessors, (28453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:10,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21102 states to 21102 states and 28453 transitions. [2024-11-13 15:47:10,790 INFO L78 Accepts]: Start accepts. Automaton has 21102 states and 28453 transitions. Word has length 84 [2024-11-13 15:47:10,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:47:10,791 INFO L471 AbstractCegarLoop]: Abstraction has 21102 states and 28453 transitions. [2024-11-13 15:47:10,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 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) [2024-11-13 15:47:10,791 INFO L276 IsEmpty]: Start isEmpty. Operand 21102 states and 28453 transitions. [2024-11-13 15:47:10,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-13 15:47:10,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:47:10,797 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:47:10,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-13 15:47:10,797 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:47:10,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:47:10,798 INFO L85 PathProgramCache]: Analyzing trace with hash 692929113, now seen corresponding path program 1 times [2024-11-13 15:47:10,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:47:10,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599129858] [2024-11-13 15:47:10,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:10,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:47:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:10,948 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 15:47:10,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:47:10,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599129858] [2024-11-13 15:47:10,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599129858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:47:10,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:47:10,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:47:10,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194121337] [2024-11-13 15:47:10,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:47:10,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:47:10,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:47:10,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:47:10,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:47:10,950 INFO L87 Difference]: Start difference. First operand 21102 states and 28453 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:11,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:47:11,163 INFO L93 Difference]: Finished difference Result 59386 states and 80015 transitions. [2024-11-13 15:47:11,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:47:11,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 85 [2024-11-13 15:47:11,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:47:11,214 INFO L225 Difference]: With dead ends: 59386 [2024-11-13 15:47:11,214 INFO L226 Difference]: Without dead ends: 38659 [2024-11-13 15:47:11,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:47:11,235 INFO L432 NwaCegarLoop]: 463 mSDtfsCounter, 234 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:47:11,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 678 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:47:11,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38659 states. [2024-11-13 15:47:11,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38659 to 30677. [2024-11-13 15:47:11,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30677 states, 30676 states have (on average 1.3336810535923849) internal successors, (40912), 30676 states have internal predecessors, (40912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:11,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30677 states to 30677 states and 40912 transitions. [2024-11-13 15:47:11,816 INFO L78 Accepts]: Start accepts. Automaton has 30677 states and 40912 transitions. Word has length 85 [2024-11-13 15:47:11,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:47:11,817 INFO L471 AbstractCegarLoop]: Abstraction has 30677 states and 40912 transitions. [2024-11-13 15:47:11,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:11,817 INFO L276 IsEmpty]: Start isEmpty. Operand 30677 states and 40912 transitions. [2024-11-13 15:47:11,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-13 15:47:11,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:47:11,823 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:47:11,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-13 15:47:11,823 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:47:11,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:47:11,824 INFO L85 PathProgramCache]: Analyzing trace with hash -793048803, now seen corresponding path program 1 times [2024-11-13 15:47:11,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:47:11,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687643496] [2024-11-13 15:47:11,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:11,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:47:11,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:12,183 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:47:12,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:47:12,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687643496] [2024-11-13 15:47:12,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687643496] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:47:12,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120097396] [2024-11-13 15:47:12,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:12,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:47:12,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:47:12,187 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:47:12,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:47:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:12,560 INFO L255 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-13 15:47:12,571 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:47:14,014 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:47:14,014 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:47:15,943 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:47:15,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120097396] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:47:15,943 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:47:15,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 12] total 25 [2024-11-13 15:47:15,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030909316] [2024-11-13 15:47:15,944 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:47:15,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-13 15:47:15,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:47:15,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-13 15:47:15,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=542, Unknown=0, NotChecked=0, Total=650 [2024-11-13 15:47:15,947 INFO L87 Difference]: Start difference. First operand 30677 states and 40912 transitions. Second operand has 26 states, 26 states have (on average 8.346153846153847) internal successors, (217), 25 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:23,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:47:23,411 INFO L93 Difference]: Finished difference Result 192874 states and 253257 transitions. [2024-11-13 15:47:23,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-11-13 15:47:23,412 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.346153846153847) internal successors, (217), 25 states have internal predecessors, (217), 0 states have call successors, (0), 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 85 [2024-11-13 15:47:23,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:47:23,658 INFO L225 Difference]: With dead ends: 192874 [2024-11-13 15:47:23,659 INFO L226 Difference]: Without dead ends: 171436 [2024-11-13 15:47:23,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3422 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=2543, Invalid=7963, Unknown=0, NotChecked=0, Total=10506 [2024-11-13 15:47:23,693 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 5733 mSDsluCounter, 2752 mSDsCounter, 0 mSdLazyCounter, 3537 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5733 SdHoareTripleChecker+Valid, 2992 SdHoareTripleChecker+Invalid, 3708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 3537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:47:23,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5733 Valid, 2992 Invalid, 3708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 3537 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-13 15:47:23,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171436 states. [2024-11-13 15:47:25,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171436 to 31106. [2024-11-13 15:47:25,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31106 states, 31105 states have (on average 1.3328403793602315) internal successors, (41458), 31105 states have internal predecessors, (41458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:25,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31106 states to 31106 states and 41458 transitions. [2024-11-13 15:47:25,358 INFO L78 Accepts]: Start accepts. Automaton has 31106 states and 41458 transitions. Word has length 85 [2024-11-13 15:47:25,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:47:25,359 INFO L471 AbstractCegarLoop]: Abstraction has 31106 states and 41458 transitions. [2024-11-13 15:47:25,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.346153846153847) internal successors, (217), 25 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:25,359 INFO L276 IsEmpty]: Start isEmpty. Operand 31106 states and 41458 transitions. [2024-11-13 15:47:25,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-13 15:47:25,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:47:25,365 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:47:25,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 15:47:25,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:47:25,571 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:47:25,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:47:25,572 INFO L85 PathProgramCache]: Analyzing trace with hash 673370533, now seen corresponding path program 1 times [2024-11-13 15:47:25,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:47:25,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660608938] [2024-11-13 15:47:25,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:25,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:47:25,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:26,194 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:47:26,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:47:26,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660608938] [2024-11-13 15:47:26,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660608938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:47:26,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:47:26,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 15:47:26,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629889756] [2024-11-13 15:47:26,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:47:26,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 15:47:26,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:47:26,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 15:47:26,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:47:26,198 INFO L87 Difference]: Start difference. First operand 31106 states and 41458 transitions. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 9 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:27,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:47:27,797 INFO L93 Difference]: Finished difference Result 61570 states and 81278 transitions. [2024-11-13 15:47:27,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 15:47:27,798 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 9 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-13 15:47:27,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:47:27,847 INFO L225 Difference]: With dead ends: 61570 [2024-11-13 15:47:27,847 INFO L226 Difference]: Without dead ends: 50274 [2024-11-13 15:47:27,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2024-11-13 15:47:27,862 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 1004 mSDsluCounter, 1016 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 1267 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:47:27,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1004 Valid, 1267 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1249 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 15:47:27,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50274 states. [2024-11-13 15:47:28,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50274 to 44580. [2024-11-13 15:47:28,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44580 states, 44579 states have (on average 1.3267682092465063) internal successors, (59146), 44579 states have internal predecessors, (59146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:28,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44580 states to 44580 states and 59146 transitions. [2024-11-13 15:47:28,396 INFO L78 Accepts]: Start accepts. Automaton has 44580 states and 59146 transitions. Word has length 85 [2024-11-13 15:47:28,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:47:28,396 INFO L471 AbstractCegarLoop]: Abstraction has 44580 states and 59146 transitions. [2024-11-13 15:47:28,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 9 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:28,396 INFO L276 IsEmpty]: Start isEmpty. Operand 44580 states and 59146 transitions. [2024-11-13 15:47:28,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-13 15:47:28,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:47:28,405 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:47:28,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-13 15:47:28,405 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:47:28,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:47:28,406 INFO L85 PathProgramCache]: Analyzing trace with hash -690367683, now seen corresponding path program 1 times [2024-11-13 15:47:28,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:47:28,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347984701] [2024-11-13 15:47:28,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:28,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:47:28,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:28,864 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 15:47:28,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:47:28,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347984701] [2024-11-13 15:47:28,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347984701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:47:28,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:47:28,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 15:47:28,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244242525] [2024-11-13 15:47:28,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:47:28,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:47:28,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:47:28,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:47:28,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:47:28,866 INFO L87 Difference]: Start difference. First operand 44580 states and 59146 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:30,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:47:30,243 INFO L93 Difference]: Finished difference Result 95358 states and 125603 transitions. [2024-11-13 15:47:30,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:47:30,244 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 86 [2024-11-13 15:47:30,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:47:30,350 INFO L225 Difference]: With dead ends: 95358 [2024-11-13 15:47:30,350 INFO L226 Difference]: Without dead ends: 86897 [2024-11-13 15:47:30,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2024-11-13 15:47:30,372 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 2043 mSDsluCounter, 1066 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2043 SdHoareTripleChecker+Valid, 1377 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:47:30,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2043 Valid, 1377 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 15:47:30,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86897 states. [2024-11-13 15:47:31,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86897 to 44566. [2024-11-13 15:47:31,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44566 states, 44565 states have (on average 1.326848423650847) internal successors, (59131), 44565 states have internal predecessors, (59131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:31,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44566 states to 44566 states and 59131 transitions. [2024-11-13 15:47:31,292 INFO L78 Accepts]: Start accepts. Automaton has 44566 states and 59131 transitions. Word has length 86 [2024-11-13 15:47:31,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:47:31,292 INFO L471 AbstractCegarLoop]: Abstraction has 44566 states and 59131 transitions. [2024-11-13 15:47:31,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:31,292 INFO L276 IsEmpty]: Start isEmpty. Operand 44566 states and 59131 transitions. [2024-11-13 15:47:31,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-13 15:47:31,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:47:31,298 INFO L215 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] [2024-11-13 15:47:31,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-13 15:47:31,298 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:47:31,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:47:31,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1264056083, now seen corresponding path program 1 times [2024-11-13 15:47:31,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:47:31,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442170943] [2024-11-13 15:47:31,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:31,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:47:31,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:31,443 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:47:31,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:47:31,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442170943] [2024-11-13 15:47:31,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442170943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:47:31,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:47:31,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:47:31,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377855222] [2024-11-13 15:47:31,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:47:31,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:47:31,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:47:31,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:47:31,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:47:31,446 INFO L87 Difference]: Start difference. First operand 44566 states and 59131 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:31,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:47:31,835 INFO L93 Difference]: Finished difference Result 88306 states and 117279 transitions. [2024-11-13 15:47:31,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:47:31,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-11-13 15:47:31,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:47:31,889 INFO L225 Difference]: With dead ends: 88306 [2024-11-13 15:47:31,889 INFO L226 Difference]: Without dead ends: 44568 [2024-11-13 15:47:31,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:47:31,913 INFO L432 NwaCegarLoop]: 430 mSDtfsCounter, 182 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:47:31,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 681 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:47:31,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44568 states. [2024-11-13 15:47:32,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44568 to 44566. [2024-11-13 15:47:32,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44566 states, 44565 states have (on average 1.3126220127903063) internal successors, (58497), 44565 states have internal predecessors, (58497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:32,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44566 states to 44566 states and 58497 transitions. [2024-11-13 15:47:32,558 INFO L78 Accepts]: Start accepts. Automaton has 44566 states and 58497 transitions. Word has length 86 [2024-11-13 15:47:32,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:47:32,559 INFO L471 AbstractCegarLoop]: Abstraction has 44566 states and 58497 transitions. [2024-11-13 15:47:32,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:32,559 INFO L276 IsEmpty]: Start isEmpty. Operand 44566 states and 58497 transitions. [2024-11-13 15:47:32,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-13 15:47:32,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:47:32,569 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:47:32,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-13 15:47:32,570 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:47:32,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:47:32,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1829701958, now seen corresponding path program 1 times [2024-11-13 15:47:32,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:47:32,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717557909] [2024-11-13 15:47:32,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:32,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:47:32,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:33,024 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:47:33,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:47:33,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717557909] [2024-11-13 15:47:33,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717557909] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:47:33,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80785217] [2024-11-13 15:47:33,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:33,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:47:33,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:47:33,028 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:47:33,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:47:33,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:33,393 INFO L255 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 15:47:33,398 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:47:34,719 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:47:34,719 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:47:34,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80785217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:47:34,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:47:34,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2024-11-13 15:47:34,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883481596] [2024-11-13 15:47:34,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:47:34,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 15:47:34,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:47:34,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:47:34,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:47:34,722 INFO L87 Difference]: Start difference. First operand 44566 states and 58497 transitions. Second operand has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:35,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:47:35,681 INFO L93 Difference]: Finished difference Result 116127 states and 153175 transitions. [2024-11-13 15:47:35,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:47:35,682 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 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 86 [2024-11-13 15:47:35,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:47:35,768 INFO L225 Difference]: With dead ends: 116127 [2024-11-13 15:47:35,768 INFO L226 Difference]: Without dead ends: 87010 [2024-11-13 15:47:35,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-13 15:47:35,794 INFO L432 NwaCegarLoop]: 416 mSDtfsCounter, 1143 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 2359 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:47:35,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1143 Valid, 2359 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 15:47:35,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87010 states. [2024-11-13 15:47:36,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87010 to 44427. [2024-11-13 15:47:36,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44427 states, 44426 states have (on average 1.3130149011839913) internal successors, (58332), 44426 states have internal predecessors, (58332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:36,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44427 states to 44427 states and 58332 transitions. [2024-11-13 15:47:36,704 INFO L78 Accepts]: Start accepts. Automaton has 44427 states and 58332 transitions. Word has length 86 [2024-11-13 15:47:36,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:47:36,705 INFO L471 AbstractCegarLoop]: Abstraction has 44427 states and 58332 transitions. [2024-11-13 15:47:36,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:36,705 INFO L276 IsEmpty]: Start isEmpty. Operand 44427 states and 58332 transitions. [2024-11-13 15:47:36,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-13 15:47:36,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:47:36,708 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:47:36,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 15:47:36,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-13 15:47:36,909 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:47:36,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:47:36,910 INFO L85 PathProgramCache]: Analyzing trace with hash 816669661, now seen corresponding path program 1 times [2024-11-13 15:47:36,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:47:36,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408085727] [2024-11-13 15:47:36,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:36,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:47:36,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:37,090 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:47:37,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:47:37,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408085727] [2024-11-13 15:47:37,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408085727] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:47:37,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602479565] [2024-11-13 15:47:37,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:37,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:47:37,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:47:37,093 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:47:37,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 15:47:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:37,440 INFO L255 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 15:47:37,444 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:47:37,626 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:47:37,626 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:47:37,903 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:47:37,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602479565] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:47:37,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:47:37,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-13 15:47:37,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884164156] [2024-11-13 15:47:37,904 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:47:37,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:47:37,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:47:37,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:47:37,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:47:37,905 INFO L87 Difference]: Start difference. First operand 44427 states and 58332 transitions. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 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) [2024-11-13 15:47:38,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:47:38,327 INFO L93 Difference]: Finished difference Result 127391 states and 165593 transitions. [2024-11-13 15:47:38,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:47:38,328 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 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) Word has length 86 [2024-11-13 15:47:38,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:47:38,573 INFO L225 Difference]: With dead ends: 127391 [2024-11-13 15:47:38,573 INFO L226 Difference]: Without dead ends: 83653 [2024-11-13 15:47:38,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 168 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:47:38,588 INFO L432 NwaCegarLoop]: 463 mSDtfsCounter, 605 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 1867 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:47:38,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 1867 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:47:38,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83653 states. [2024-11-13 15:47:39,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83653 to 57357. [2024-11-13 15:47:39,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57357 states, 57356 states have (on average 1.3029499965130065) internal successors, (74732), 57356 states have internal predecessors, (74732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:39,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57357 states to 57357 states and 74732 transitions. [2024-11-13 15:47:39,274 INFO L78 Accepts]: Start accepts. Automaton has 57357 states and 74732 transitions. Word has length 86 [2024-11-13 15:47:39,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:47:39,274 INFO L471 AbstractCegarLoop]: Abstraction has 57357 states and 74732 transitions. [2024-11-13 15:47:39,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 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) [2024-11-13 15:47:39,274 INFO L276 IsEmpty]: Start isEmpty. Operand 57357 states and 74732 transitions. [2024-11-13 15:47:39,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-13 15:47:39,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:47:39,280 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:47:39,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 15:47:39,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-13 15:47:39,480 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:47:39,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:47:39,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1769392510, now seen corresponding path program 1 times [2024-11-13 15:47:39,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:47:39,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166236044] [2024-11-13 15:47:39,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:39,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:47:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:39,575 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:47:39,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:47:39,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166236044] [2024-11-13 15:47:39,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166236044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:47:39,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:47:39,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:47:39,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391714957] [2024-11-13 15:47:39,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:47:39,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:47:39,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:47:39,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:47:39,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:47:39,577 INFO L87 Difference]: Start difference. First operand 57357 states and 74732 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:39,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:47:39,882 INFO L93 Difference]: Finished difference Result 78080 states and 101635 transitions. [2024-11-13 15:47:39,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:47:39,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2024-11-13 15:47:39,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:47:39,940 INFO L225 Difference]: With dead ends: 78080 [2024-11-13 15:47:39,940 INFO L226 Difference]: Without dead ends: 33154 [2024-11-13 15:47:39,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:47:39,967 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 131 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:47:39,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 722 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:47:39,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33154 states. [2024-11-13 15:47:40,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33154 to 31686. [2024-11-13 15:47:40,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31686 states, 31685 states have (on average 1.2854978696544106) internal successors, (40731), 31685 states have internal predecessors, (40731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:41,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31686 states to 31686 states and 40731 transitions. [2024-11-13 15:47:41,029 INFO L78 Accepts]: Start accepts. Automaton has 31686 states and 40731 transitions. Word has length 89 [2024-11-13 15:47:41,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:47:41,029 INFO L471 AbstractCegarLoop]: Abstraction has 31686 states and 40731 transitions. [2024-11-13 15:47:41,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:41,030 INFO L276 IsEmpty]: Start isEmpty. Operand 31686 states and 40731 transitions. [2024-11-13 15:47:41,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-13 15:47:41,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:47:41,033 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:47:41,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-13 15:47:41,033 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:47:41,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:47:41,034 INFO L85 PathProgramCache]: Analyzing trace with hash -415371770, now seen corresponding path program 1 times [2024-11-13 15:47:41,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:47:41,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580534012] [2024-11-13 15:47:41,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:41,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:47:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:41,154 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:47:41,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:47:41,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580534012] [2024-11-13 15:47:41,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580534012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:47:41,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:47:41,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:47:41,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500055486] [2024-11-13 15:47:41,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:47:41,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:47:41,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:47:41,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:47:41,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:47:41,156 INFO L87 Difference]: Start difference. First operand 31686 states and 40731 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:41,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:47:41,865 INFO L93 Difference]: Finished difference Result 63103 states and 81167 transitions. [2024-11-13 15:47:41,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:47:41,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2024-11-13 15:47:41,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:47:41,933 INFO L225 Difference]: With dead ends: 63103 [2024-11-13 15:47:41,933 INFO L226 Difference]: Without dead ends: 31778 [2024-11-13 15:47:41,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:47:41,962 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 726 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:47:41,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 580 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 15:47:41,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31778 states. [2024-11-13 15:47:42,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31778 to 28880. [2024-11-13 15:47:42,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28880 states, 28879 states have (on average 1.2558606599951523) internal successors, (36268), 28879 states have internal predecessors, (36268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:42,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28880 states to 28880 states and 36268 transitions. [2024-11-13 15:47:42,511 INFO L78 Accepts]: Start accepts. Automaton has 28880 states and 36268 transitions. Word has length 91 [2024-11-13 15:47:42,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:47:42,511 INFO L471 AbstractCegarLoop]: Abstraction has 28880 states and 36268 transitions. [2024-11-13 15:47:42,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:42,511 INFO L276 IsEmpty]: Start isEmpty. Operand 28880 states and 36268 transitions. [2024-11-13 15:47:42,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-13 15:47:42,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:47:42,515 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:47:42,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-13 15:47:42,515 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:47:42,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:47:42,516 INFO L85 PathProgramCache]: Analyzing trace with hash -913035266, now seen corresponding path program 1 times [2024-11-13 15:47:42,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:47:42,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772316876] [2024-11-13 15:47:42,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:42,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:47:42,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:42,753 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 15:47:42,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:47:42,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772316876] [2024-11-13 15:47:42,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772316876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:47:42,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:47:42,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:47:42,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475243943] [2024-11-13 15:47:42,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:47:42,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:47:42,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:47:42,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:47:42,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:47:42,755 INFO L87 Difference]: Start difference. First operand 28880 states and 36268 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:42,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:47:42,883 INFO L93 Difference]: Finished difference Result 41312 states and 51849 transitions. [2024-11-13 15:47:42,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:47:42,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 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 93 [2024-11-13 15:47:42,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:47:42,906 INFO L225 Difference]: With dead ends: 41312 [2024-11-13 15:47:42,906 INFO L226 Difference]: Without dead ends: 22518 [2024-11-13 15:47:42,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:47:42,918 INFO L432 NwaCegarLoop]: 455 mSDtfsCounter, 153 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:47:42,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 735 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:47:42,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22518 states. [2024-11-13 15:47:43,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22518 to 21687. [2024-11-13 15:47:43,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21687 states, 21686 states have (on average 1.2412155307571706) internal successors, (26917), 21686 states have internal predecessors, (26917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:43,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21687 states to 21687 states and 26917 transitions. [2024-11-13 15:47:43,130 INFO L78 Accepts]: Start accepts. Automaton has 21687 states and 26917 transitions. Word has length 93 [2024-11-13 15:47:43,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:47:43,131 INFO L471 AbstractCegarLoop]: Abstraction has 21687 states and 26917 transitions. [2024-11-13 15:47:43,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:43,131 INFO L276 IsEmpty]: Start isEmpty. Operand 21687 states and 26917 transitions. [2024-11-13 15:47:43,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-13 15:47:43,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:47:43,135 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:47:43,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-13 15:47:43,135 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:47:43,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:47:43,136 INFO L85 PathProgramCache]: Analyzing trace with hash 445231365, now seen corresponding path program 1 times [2024-11-13 15:47:43,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:47:43,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531154974] [2024-11-13 15:47:43,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:43,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:47:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:43,372 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:47:43,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:47:43,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531154974] [2024-11-13 15:47:43,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531154974] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:47:43,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010493800] [2024-11-13 15:47:43,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:43,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:47:43,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:47:43,376 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:47:43,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 15:47:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:43,791 INFO L255 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 15:47:43,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:47:44,287 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:47:44,289 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:47:44,562 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:47:44,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010493800] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:47:44,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:47:44,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-11-13 15:47:44,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642747400] [2024-11-13 15:47:44,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:47:44,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 15:47:44,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:47:44,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 15:47:44,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:47:44,567 INFO L87 Difference]: Start difference. First operand 21687 states and 26917 transitions. Second operand has 14 states, 14 states have (on average 18.285714285714285) internal successors, (256), 14 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:45,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:47:45,573 INFO L93 Difference]: Finished difference Result 46980 states and 58087 transitions. [2024-11-13 15:47:45,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 15:47:45,574 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 18.285714285714285) internal successors, (256), 14 states have internal predecessors, (256), 0 states have call successors, (0), 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 94 [2024-11-13 15:47:45,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:47:45,600 INFO L225 Difference]: With dead ends: 46980 [2024-11-13 15:47:45,600 INFO L226 Difference]: Without dead ends: 25692 [2024-11-13 15:47:45,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 179 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-13 15:47:45,613 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 2477 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2477 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:47:45,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2477 Valid, 905 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 15:47:45,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25692 states. [2024-11-13 15:47:45,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25692 to 23004. [2024-11-13 15:47:45,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23004 states, 23003 states have (on average 1.214059035777942) internal successors, (27927), 23003 states have internal predecessors, (27927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:46,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23004 states to 23004 states and 27927 transitions. [2024-11-13 15:47:46,115 INFO L78 Accepts]: Start accepts. Automaton has 23004 states and 27927 transitions. Word has length 94 [2024-11-13 15:47:46,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:47:46,115 INFO L471 AbstractCegarLoop]: Abstraction has 23004 states and 27927 transitions. [2024-11-13 15:47:46,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 18.285714285714285) internal successors, (256), 14 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:46,115 INFO L276 IsEmpty]: Start isEmpty. Operand 23004 states and 27927 transitions. [2024-11-13 15:47:46,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-13 15:47:46,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:47:46,118 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:47:46,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 15:47:46,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-13 15:47:46,319 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:47:46,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:47:46,319 INFO L85 PathProgramCache]: Analyzing trace with hash 862946784, now seen corresponding path program 1 times [2024-11-13 15:47:46,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:47:46,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710635766] [2024-11-13 15:47:46,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:46,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:47:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:46,409 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-13 15:47:46,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:47:46,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710635766] [2024-11-13 15:47:46,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710635766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:47:46,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:47:46,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:47:46,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933239432] [2024-11-13 15:47:46,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:47:46,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:47:46,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:47:46,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:47:46,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:47:46,411 INFO L87 Difference]: Start difference. First operand 23004 states and 27927 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:46,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:47:46,807 INFO L93 Difference]: Finished difference Result 46589 states and 56422 transitions. [2024-11-13 15:47:46,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:47:46,808 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 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 98 [2024-11-13 15:47:46,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:47:46,842 INFO L225 Difference]: With dead ends: 46589 [2024-11-13 15:47:46,842 INFO L226 Difference]: Without dead ends: 36430 [2024-11-13 15:47:46,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:47:46,852 INFO L432 NwaCegarLoop]: 346 mSDtfsCounter, 250 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:47:46,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 754 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 15:47:46,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36430 states. [2024-11-13 15:47:47,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36430 to 28032. [2024-11-13 15:47:47,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28032 states, 28031 states have (on average 1.2152616745745781) internal successors, (34065), 28031 states have internal predecessors, (34065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:47,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28032 states to 28032 states and 34065 transitions. [2024-11-13 15:47:47,130 INFO L78 Accepts]: Start accepts. Automaton has 28032 states and 34065 transitions. Word has length 98 [2024-11-13 15:47:47,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:47:47,130 INFO L471 AbstractCegarLoop]: Abstraction has 28032 states and 34065 transitions. [2024-11-13 15:47:47,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:47,130 INFO L276 IsEmpty]: Start isEmpty. Operand 28032 states and 34065 transitions. [2024-11-13 15:47:47,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-13 15:47:47,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:47:47,134 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:47:47,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-13 15:47:47,134 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:47:47,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:47:47,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1276506111, now seen corresponding path program 1 times [2024-11-13 15:47:47,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:47:47,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699438393] [2024-11-13 15:47:47,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:47,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:47:47,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:47,537 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-13 15:47:47,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:47:47,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699438393] [2024-11-13 15:47:47,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699438393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:47:47,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:47:47,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:47:47,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026956153] [2024-11-13 15:47:47,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:47:47,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:47:47,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:47:47,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:47:47,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:47:47,541 INFO L87 Difference]: Start difference. First operand 28032 states and 34065 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:48,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:47:48,133 INFO L93 Difference]: Finished difference Result 35983 states and 43779 transitions. [2024-11-13 15:47:48,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 15:47:48,134 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 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 98 [2024-11-13 15:47:48,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:47:48,157 INFO L225 Difference]: With dead ends: 35983 [2024-11-13 15:47:48,157 INFO L226 Difference]: Without dead ends: 28091 [2024-11-13 15:47:48,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:47:48,164 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 1365 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:47:48,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1365 Valid, 716 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 15:47:48,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28091 states. [2024-11-13 15:47:48,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28091 to 28032. [2024-11-13 15:47:48,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28032 states, 28031 states have (on average 1.2152259997859514) internal successors, (34064), 28031 states have internal predecessors, (34064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:48,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28032 states to 28032 states and 34064 transitions. [2024-11-13 15:47:48,405 INFO L78 Accepts]: Start accepts. Automaton has 28032 states and 34064 transitions. Word has length 98 [2024-11-13 15:47:48,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:47:48,406 INFO L471 AbstractCegarLoop]: Abstraction has 28032 states and 34064 transitions. [2024-11-13 15:47:48,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:48,406 INFO L276 IsEmpty]: Start isEmpty. Operand 28032 states and 34064 transitions. [2024-11-13 15:47:48,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-13 15:47:48,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:47:48,410 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:47:48,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-13 15:47:48,410 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:47:48,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:47:48,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1973671717, now seen corresponding path program 1 times [2024-11-13 15:47:48,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:47:48,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982812314] [2024-11-13 15:47:48,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:48,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:47:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:48,537 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 15:47:48,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:47:48,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982812314] [2024-11-13 15:47:48,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982812314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:47:48,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:47:48,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:47:48,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872639529] [2024-11-13 15:47:48,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:47:48,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:47:48,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:47:48,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:47:48,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:47:48,539 INFO L87 Difference]: Start difference. First operand 28032 states and 34064 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:48,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:47:48,882 INFO L93 Difference]: Finished difference Result 48261 states and 58478 transitions. [2024-11-13 15:47:48,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:47:48,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 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 98 [2024-11-13 15:47:48,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:47:48,915 INFO L225 Difference]: With dead ends: 48261 [2024-11-13 15:47:48,915 INFO L226 Difference]: Without dead ends: 40019 [2024-11-13 15:47:48,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:47:48,925 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 231 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:47:48,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 709 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 15:47:48,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40019 states. [2024-11-13 15:47:49,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40019 to 32206. [2024-11-13 15:47:49,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32206 states, 32205 states have (on average 1.216022356776898) internal successors, (39162), 32205 states have internal predecessors, (39162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:49,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32206 states to 32206 states and 39162 transitions. [2024-11-13 15:47:49,222 INFO L78 Accepts]: Start accepts. Automaton has 32206 states and 39162 transitions. Word has length 98 [2024-11-13 15:47:49,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:47:49,222 INFO L471 AbstractCegarLoop]: Abstraction has 32206 states and 39162 transitions. [2024-11-13 15:47:49,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:47:49,222 INFO L276 IsEmpty]: Start isEmpty. Operand 32206 states and 39162 transitions. [2024-11-13 15:47:49,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-13 15:47:49,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:47:49,226 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:47:49,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-13 15:47:49,226 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:47:49,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:47:49,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1402320956, now seen corresponding path program 1 times [2024-11-13 15:47:49,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:47:49,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021007731] [2024-11-13 15:47:49,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:49,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:47:49,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:49,607 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:47:49,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:47:49,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021007731] [2024-11-13 15:47:49,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021007731] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:47:49,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465548832] [2024-11-13 15:47:49,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:47:49,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:47:49,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:47:49,610 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:47:49,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 15:47:50,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:47:50,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 15:47:50,020 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:47:51,430 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:47:51,430 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:47:53,761 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:47:53,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465548832] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:47:53,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:47:53,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 16, 16] total 37 [2024-11-13 15:47:53,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675006602] [2024-11-13 15:47:53,761 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:47:53,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-13 15:47:53,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:47:53,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-13 15:47:53,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=1240, Unknown=0, NotChecked=0, Total=1406 [2024-11-13 15:47:53,764 INFO L87 Difference]: Start difference. First operand 32206 states and 39162 transitions. Second operand has 38 states, 38 states have (on average 7.078947368421052) internal successors, (269), 37 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:48:17,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:48:17,123 INFO L93 Difference]: Finished difference Result 189841 states and 229962 transitions. [2024-11-13 15:48:17,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2024-11-13 15:48:17,123 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 7.078947368421052) internal successors, (269), 37 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-13 15:48:17,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:48:17,361 INFO L225 Difference]: With dead ends: 189841 [2024-11-13 15:48:17,361 INFO L226 Difference]: Without dead ends: 175105 [2024-11-13 15:48:17,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 166 SyntacticMatches, 1 SemanticMatches, 229 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19721 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=7800, Invalid=45330, Unknown=0, NotChecked=0, Total=53130 [2024-11-13 15:48:17,425 INFO L432 NwaCegarLoop]: 418 mSDtfsCounter, 6086 mSDsluCounter, 8314 mSDsCounter, 0 mSdLazyCounter, 10306 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6086 SdHoareTripleChecker+Valid, 8732 SdHoareTripleChecker+Invalid, 10454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 10306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:48:17,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6086 Valid, 8732 Invalid, 10454 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [148 Valid, 10306 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2024-11-13 15:48:17,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175105 states. [2024-11-13 15:48:18,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175105 to 43939. [2024-11-13 15:48:18,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43939 states, 43938 states have (on average 1.2148026764987028) internal successors, (53376), 43938 states have internal predecessors, (53376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:48:18,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43939 states to 43939 states and 53376 transitions. [2024-11-13 15:48:18,918 INFO L78 Accepts]: Start accepts. Automaton has 43939 states and 53376 transitions. Word has length 98 [2024-11-13 15:48:18,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:48:18,918 INFO L471 AbstractCegarLoop]: Abstraction has 43939 states and 53376 transitions. [2024-11-13 15:48:18,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 7.078947368421052) internal successors, (269), 37 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:48:18,918 INFO L276 IsEmpty]: Start isEmpty. Operand 43939 states and 53376 transitions. [2024-11-13 15:48:18,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-13 15:48:18,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:48:18,927 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:48:18,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 15:48:19,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:48:19,128 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:48:19,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:48:19,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1234071024, now seen corresponding path program 1 times [2024-11-13 15:48:19,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:48:19,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66902292] [2024-11-13 15:48:19,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:48:19,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:48:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:48:19,238 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-13 15:48:19,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:48:19,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66902292] [2024-11-13 15:48:19,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66902292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:48:19,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:48:19,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:48:19,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874961861] [2024-11-13 15:48:19,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:48:19,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:48:19,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:48:19,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:48:19,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:48:19,241 INFO L87 Difference]: Start difference. First operand 43939 states and 53376 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:48:19,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:48:19,860 INFO L93 Difference]: Finished difference Result 58405 states and 70779 transitions. [2024-11-13 15:48:19,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:48:19,861 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 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 99 [2024-11-13 15:48:19,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:48:19,929 INFO L225 Difference]: With dead ends: 58405 [2024-11-13 15:48:19,929 INFO L226 Difference]: Without dead ends: 53507 [2024-11-13 15:48:19,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:48:19,943 INFO L432 NwaCegarLoop]: 346 mSDtfsCounter, 251 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:48:19,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 755 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 15:48:19,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53507 states. [2024-11-13 15:48:20,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53507 to 43939. [2024-11-13 15:48:20,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43939 states, 43938 states have (on average 1.2148026764987028) internal successors, (53376), 43938 states have internal predecessors, (53376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:48:20,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43939 states to 43939 states and 53376 transitions. [2024-11-13 15:48:20,551 INFO L78 Accepts]: Start accepts. Automaton has 43939 states and 53376 transitions. Word has length 99 [2024-11-13 15:48:20,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:48:20,551 INFO L471 AbstractCegarLoop]: Abstraction has 43939 states and 53376 transitions. [2024-11-13 15:48:20,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:48:20,551 INFO L276 IsEmpty]: Start isEmpty. Operand 43939 states and 53376 transitions. [2024-11-13 15:48:20,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-13 15:48:20,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:48:20,557 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:48:20,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-13 15:48:20,557 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:48:20,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:48:20,557 INFO L85 PathProgramCache]: Analyzing trace with hash 834079825, now seen corresponding path program 1 times [2024-11-13 15:48:20,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:48:20,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339152446] [2024-11-13 15:48:20,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:48:20,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:48:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:48:20,699 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:48:20,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:48:20,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339152446] [2024-11-13 15:48:20,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339152446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:48:20,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:48:20,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:48:20,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804722359] [2024-11-13 15:48:20,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:48:20,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:48:20,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:48:20,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:48:20,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:48:20,701 INFO L87 Difference]: Start difference. First operand 43939 states and 53376 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:48:21,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:48:21,111 INFO L93 Difference]: Finished difference Result 85809 states and 105083 transitions. [2024-11-13 15:48:21,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:48:21,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2024-11-13 15:48:21,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:48:21,146 INFO L225 Difference]: With dead ends: 85809 [2024-11-13 15:48:21,146 INFO L226 Difference]: Without dead ends: 42493 [2024-11-13 15:48:21,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:48:21,158 INFO L432 NwaCegarLoop]: 420 mSDtfsCounter, 159 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:48:21,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 672 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:48:21,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42493 states. [2024-11-13 15:48:21,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42493 to 40604. [2024-11-13 15:48:21,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40604 states, 40603 states have (on average 1.2081127010319435) internal successors, (49053), 40603 states have internal predecessors, (49053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:48:21,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40604 states to 40604 states and 49053 transitions. [2024-11-13 15:48:21,720 INFO L78 Accepts]: Start accepts. Automaton has 40604 states and 49053 transitions. Word has length 99 [2024-11-13 15:48:21,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:48:21,720 INFO L471 AbstractCegarLoop]: Abstraction has 40604 states and 49053 transitions. [2024-11-13 15:48:21,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:48:21,720 INFO L276 IsEmpty]: Start isEmpty. Operand 40604 states and 49053 transitions. [2024-11-13 15:48:21,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-13 15:48:21,724 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:48:21,724 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:48:21,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-13 15:48:21,724 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:48:21,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:48:21,726 INFO L85 PathProgramCache]: Analyzing trace with hash -294277276, now seen corresponding path program 1 times [2024-11-13 15:48:21,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:48:21,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482932221] [2024-11-13 15:48:21,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:48:21,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:48:21,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:48:21,809 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 15:48:21,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:48:21,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482932221] [2024-11-13 15:48:21,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482932221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:48:21,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:48:21,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:48:21,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306340742] [2024-11-13 15:48:21,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:48:21,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:48:21,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:48:21,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:48:21,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:48:21,811 INFO L87 Difference]: Start difference. First operand 40604 states and 49053 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 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) [2024-11-13 15:48:22,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:48:22,205 INFO L93 Difference]: Finished difference Result 59403 states and 71514 transitions. [2024-11-13 15:48:22,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:48:22,205 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 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 99 [2024-11-13 15:48:22,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:48:22,259 INFO L225 Difference]: With dead ends: 59403 [2024-11-13 15:48:22,259 INFO L226 Difference]: Without dead ends: 50891 [2024-11-13 15:48:22,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:48:22,274 INFO L432 NwaCegarLoop]: 329 mSDtfsCounter, 229 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:48:22,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 720 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 15:48:22,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50891 states. [2024-11-13 15:48:22,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50891 to 40602. [2024-11-13 15:48:22,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40602 states, 40601 states have (on average 1.208073692766188) internal successors, (49049), 40601 states have internal predecessors, (49049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:48:22,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40602 states to 40602 states and 49049 transitions. [2024-11-13 15:48:22,850 INFO L78 Accepts]: Start accepts. Automaton has 40602 states and 49049 transitions. Word has length 99 [2024-11-13 15:48:22,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:48:22,850 INFO L471 AbstractCegarLoop]: Abstraction has 40602 states and 49049 transitions. [2024-11-13 15:48:22,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 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) [2024-11-13 15:48:22,850 INFO L276 IsEmpty]: Start isEmpty. Operand 40602 states and 49049 transitions. [2024-11-13 15:48:22,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-13 15:48:22,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:48:22,854 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:48:22,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-13 15:48:22,854 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:48:22,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:48:22,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1470539333, now seen corresponding path program 1 times [2024-11-13 15:48:22,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:48:22,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000895987] [2024-11-13 15:48:22,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:48:22,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:48:22,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:48:23,213 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-13 15:48:23,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:48:23,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000895987] [2024-11-13 15:48:23,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000895987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:48:23,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:48:23,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 15:48:23,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885169646] [2024-11-13 15:48:23,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:48:23,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:48:23,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:48:23,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:48:23,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:48:23,214 INFO L87 Difference]: Start difference. First operand 40602 states and 49049 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:48:24,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:48:24,336 INFO L93 Difference]: Finished difference Result 88208 states and 106396 transitions. [2024-11-13 15:48:24,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 15:48:24,336 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 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 99 [2024-11-13 15:48:24,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:48:24,427 INFO L225 Difference]: With dead ends: 88208 [2024-11-13 15:48:24,427 INFO L226 Difference]: Without dead ends: 79666 [2024-11-13 15:48:24,448 INFO L431 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 [2024-11-13 15:48:24,449 INFO L432 NwaCegarLoop]: 321 mSDtfsCounter, 1781 mSDsluCounter, 1225 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1781 SdHoareTripleChecker+Valid, 1546 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:48:24,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1781 Valid, 1546 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 15:48:24,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79666 states. [2024-11-13 15:48:25,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79666 to 40602. [2024-11-13 15:48:25,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40602 states, 40601 states have (on average 1.2080490628309648) internal successors, (49048), 40601 states have internal predecessors, (49048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:48:25,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40602 states to 40602 states and 49048 transitions. [2024-11-13 15:48:25,174 INFO L78 Accepts]: Start accepts. Automaton has 40602 states and 49048 transitions. Word has length 99 [2024-11-13 15:48:25,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:48:25,175 INFO L471 AbstractCegarLoop]: Abstraction has 40602 states and 49048 transitions. [2024-11-13 15:48:25,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:48:25,175 INFO L276 IsEmpty]: Start isEmpty. Operand 40602 states and 49048 transitions. [2024-11-13 15:48:25,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-13 15:48:25,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:48:25,178 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:48:25,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-13 15:48:25,179 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:48:25,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:48:25,179 INFO L85 PathProgramCache]: Analyzing trace with hash 350206034, now seen corresponding path program 1 times [2024-11-13 15:48:25,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:48:25,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936610081] [2024-11-13 15:48:25,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:48:25,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:48:25,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:48:25,666 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:48:25,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:48:25,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936610081] [2024-11-13 15:48:25,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936610081] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:48:25,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079545935] [2024-11-13 15:48:25,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:48:25,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:48:25,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:48:25,668 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:48:25,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 15:48:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:48:26,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-13 15:48:26,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:48:27,397 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:48:27,397 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:48:28,427 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:48:28,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079545935] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:48:28,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:48:28,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 13] total 31 [2024-11-13 15:48:28,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529057959] [2024-11-13 15:48:28,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:48:28,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-13 15:48:28,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:48:28,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-13 15:48:28,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=807, Unknown=0, NotChecked=0, Total=930 [2024-11-13 15:48:28,429 INFO L87 Difference]: Start difference. First operand 40602 states and 49048 transitions. Second operand has 31 states, 31 states have (on average 7.935483870967742) internal successors, (246), 31 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:48:40,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:48:40,230 INFO L93 Difference]: Finished difference Result 335583 states and 406604 transitions. [2024-11-13 15:48:40,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2024-11-13 15:48:40,231 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 7.935483870967742) internal successors, (246), 31 states have internal predecessors, (246), 0 states have call successors, (0), 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 100 [2024-11-13 15:48:40,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:48:40,552 INFO L225 Difference]: With dead ends: 335583 [2024-11-13 15:48:40,552 INFO L226 Difference]: Without dead ends: 300414 [2024-11-13 15:48:40,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6173 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=3201, Invalid=15431, Unknown=0, NotChecked=0, Total=18632 [2024-11-13 15:48:40,594 INFO L432 NwaCegarLoop]: 492 mSDtfsCounter, 5729 mSDsluCounter, 9014 mSDsCounter, 0 mSdLazyCounter, 7792 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5729 SdHoareTripleChecker+Valid, 9506 SdHoareTripleChecker+Invalid, 7900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 7792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:48:40,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5729 Valid, 9506 Invalid, 7900 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [108 Valid, 7792 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-13 15:48:40,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300414 states. [2024-11-13 15:48:42,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300414 to 40831. [2024-11-13 15:48:42,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40831 states, 40830 states have (on average 1.2075189811413176) internal successors, (49303), 40830 states have internal predecessors, (49303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:48:42,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40831 states to 40831 states and 49303 transitions. [2024-11-13 15:48:42,605 INFO L78 Accepts]: Start accepts. Automaton has 40831 states and 49303 transitions. Word has length 100 [2024-11-13 15:48:42,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:48:42,606 INFO L471 AbstractCegarLoop]: Abstraction has 40831 states and 49303 transitions. [2024-11-13 15:48:42,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 7.935483870967742) internal successors, (246), 31 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:48:42,606 INFO L276 IsEmpty]: Start isEmpty. Operand 40831 states and 49303 transitions. [2024-11-13 15:48:42,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-13 15:48:42,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:48:42,610 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:48:42,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 15:48:42,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-13 15:48:42,811 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:48:42,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:48:42,811 INFO L85 PathProgramCache]: Analyzing trace with hash -809340618, now seen corresponding path program 1 times [2024-11-13 15:48:42,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:48:42,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961151521] [2024-11-13 15:48:42,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:48:42,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:48:42,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:48:42,889 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-13 15:48:42,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:48:42,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961151521] [2024-11-13 15:48:42,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961151521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:48:42,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:48:42,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:48:42,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124220367] [2024-11-13 15:48:42,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:48:42,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:48:42,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:48:42,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:48:42,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:48:42,891 INFO L87 Difference]: Start difference. First operand 40831 states and 49303 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:48:43,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:48:43,255 INFO L93 Difference]: Finished difference Result 75634 states and 91762 transitions. [2024-11-13 15:48:43,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:48:43,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 100 [2024-11-13 15:48:43,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:48:43,296 INFO L225 Difference]: With dead ends: 75634 [2024-11-13 15:48:43,296 INFO L226 Difference]: Without dead ends: 40008 [2024-11-13 15:48:43,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:48:43,315 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 312 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:48:43,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 317 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 15:48:43,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40008 states. [2024-11-13 15:48:43,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40008 to 40008. [2024-11-13 15:48:43,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40008 states, 40007 states have (on average 1.193641112805259) internal successors, (47754), 40007 states have internal predecessors, (47754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:48:43,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40008 states to 40008 states and 47754 transitions. [2024-11-13 15:48:43,914 INFO L78 Accepts]: Start accepts. Automaton has 40008 states and 47754 transitions. Word has length 100 [2024-11-13 15:48:43,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:48:43,914 INFO L471 AbstractCegarLoop]: Abstraction has 40008 states and 47754 transitions. [2024-11-13 15:48:43,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:48:43,914 INFO L276 IsEmpty]: Start isEmpty. Operand 40008 states and 47754 transitions. [2024-11-13 15:48:43,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-13 15:48:43,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:48:43,916 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:48:43,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-13 15:48:43,917 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:48:43,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:48:43,917 INFO L85 PathProgramCache]: Analyzing trace with hash -755593953, now seen corresponding path program 1 times [2024-11-13 15:48:43,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:48:43,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608282489] [2024-11-13 15:48:43,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:48:43,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:48:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:48:44,403 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:48:44,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:48:44,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608282489] [2024-11-13 15:48:44,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608282489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:48:44,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:48:44,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-13 15:48:44,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162024392] [2024-11-13 15:48:44,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:48:44,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 15:48:44,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:48:44,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 15:48:44,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:48:44,406 INFO L87 Difference]: Start difference. First operand 40008 states and 47754 transitions. Second operand has 14 states, 14 states have (on average 7.214285714285714) internal successors, (101), 14 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) [2024-11-13 15:48:45,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:48:45,035 INFO L93 Difference]: Finished difference Result 47360 states and 56584 transitions. [2024-11-13 15:48:45,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 15:48:45,035 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.214285714285714) internal successors, (101), 14 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 101 [2024-11-13 15:48:45,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:48:45,069 INFO L225 Difference]: With dead ends: 47360 [2024-11-13 15:48:45,069 INFO L226 Difference]: Without dead ends: 42677 [2024-11-13 15:48:45,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=503, Unknown=0, NotChecked=0, Total=650 [2024-11-13 15:48:45,078 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 1493 mSDsluCounter, 2825 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 3244 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:48:45,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 3244 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 15:48:45,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42677 states. [2024-11-13 15:48:45,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42677 to 42132. [2024-11-13 15:48:45,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42132 states, 42131 states have (on average 1.192684721464005) internal successors, (50249), 42131 states have internal predecessors, (50249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:48:45,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42132 states to 42132 states and 50249 transitions. [2024-11-13 15:48:45,700 INFO L78 Accepts]: Start accepts. Automaton has 42132 states and 50249 transitions. Word has length 101 [2024-11-13 15:48:45,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:48:45,701 INFO L471 AbstractCegarLoop]: Abstraction has 42132 states and 50249 transitions. [2024-11-13 15:48:45,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.214285714285714) internal successors, (101), 14 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) [2024-11-13 15:48:45,701 INFO L276 IsEmpty]: Start isEmpty. Operand 42132 states and 50249 transitions. [2024-11-13 15:48:45,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-13 15:48:45,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:48:45,703 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:48:45,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-13 15:48:45,704 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:48:45,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:48:45,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1768699519, now seen corresponding path program 1 times [2024-11-13 15:48:45,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:48:45,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802442287] [2024-11-13 15:48:45,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:48:45,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:48:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:48:46,926 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:48:46,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:48:46,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802442287] [2024-11-13 15:48:46,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802442287] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:48:46,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072854773] [2024-11-13 15:48:46,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:48:46,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:48:46,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:48:46,929 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:48:46,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 15:48:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:48:47,263 INFO L255 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 15:48:47,265 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:48:48,134 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:48:48,135 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:48:48,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072854773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:48:48,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:48:48,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [20] total 31 [2024-11-13 15:48:48,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434954513] [2024-11-13 15:48:48,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:48:48,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:48:48,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:48:48,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:48:48,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=833, Unknown=0, NotChecked=0, Total=930 [2024-11-13 15:48:48,136 INFO L87 Difference]: Start difference. First operand 42132 states and 50249 transitions. Second operand has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 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) [2024-11-13 15:48:48,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:48:48,775 INFO L93 Difference]: Finished difference Result 49689 states and 59414 transitions. [2024-11-13 15:48:48,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 15:48:48,776 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 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 101 [2024-11-13 15:48:48,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:48:48,813 INFO L225 Difference]: With dead ends: 49689 [2024-11-13 15:48:48,813 INFO L226 Difference]: Without dead ends: 45036 [2024-11-13 15:48:48,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=141, Invalid=1119, Unknown=0, NotChecked=0, Total=1260 [2024-11-13 15:48:48,823 INFO L432 NwaCegarLoop]: 438 mSDtfsCounter, 834 mSDsluCounter, 2927 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 3365 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:48:48,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 3365 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 15:48:48,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45036 states. [2024-11-13 15:48:49,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45036 to 44491. [2024-11-13 15:48:49,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44491 states, 44490 states have (on average 1.193886266576759) internal successors, (53116), 44490 states have internal predecessors, (53116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:48:49,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44491 states to 44491 states and 53116 transitions. [2024-11-13 15:48:49,523 INFO L78 Accepts]: Start accepts. Automaton has 44491 states and 53116 transitions. Word has length 101 [2024-11-13 15:48:49,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:48:49,524 INFO L471 AbstractCegarLoop]: Abstraction has 44491 states and 53116 transitions. [2024-11-13 15:48:49,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 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) [2024-11-13 15:48:49,524 INFO L276 IsEmpty]: Start isEmpty. Operand 44491 states and 53116 transitions. [2024-11-13 15:48:49,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-13 15:48:49,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:48:49,530 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 15:48:49,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 15:48:49,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7981819c-8008-4bfd-8733-74f6f0a7fa6a/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:48:49,731 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-13 15:48:49,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:48:49,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1172467260, now seen corresponding path program 1 times [2024-11-13 15:48:49,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:48:49,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114726246] [2024-11-13 15:48:49,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:48:49,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:48:49,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat