./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73bef168-e8a8-4efc-ab3c-04c6badb6ea6/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73bef168-e8a8-4efc-ab3c-04c6badb6ea6/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73bef168-e8a8-4efc-ab3c-04c6badb6ea6/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73bef168-e8a8-4efc-ab3c-04c6badb6ea6/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73bef168-e8a8-4efc-ab3c-04c6badb6ea6/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73bef168-e8a8-4efc-ab3c-04c6badb6ea6/bin/uautomizer-verify-4GaUIPS5ZU --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 cc839390ce90c7793a3060b323c83e9a1c067374beb1721b491d5c2fbf639881 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:04:15,915 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:04:16,008 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73bef168-e8a8-4efc-ab3c-04c6badb6ea6/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:04:16,018 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:04:16,019 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:04:16,058 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:04:16,058 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:04:16,059 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:04:16,060 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:04:16,060 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:04:16,061 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:04:16,061 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:04:16,062 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:04:16,062 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:04:16,063 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:04:16,063 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:04:16,064 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:04:16,064 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:04:16,064 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:04:16,065 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:04:16,065 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:04:16,066 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:04:16,066 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:04:16,067 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:04:16,067 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:04:16,068 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:04:16,068 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:04:16,068 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:04:16,069 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:04:16,069 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:04:16,070 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:04:16,070 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:04:16,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:04:16,071 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:04:16,071 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:04:16,072 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:04:16,072 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:04:16,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:04:16,073 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:04:16,073 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:04:16,073 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:04:16,074 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:04:16,074 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73bef168-e8a8-4efc-ab3c-04c6badb6ea6/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73bef168-e8a8-4efc-ab3c-04c6badb6ea6/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc839390ce90c7793a3060b323c83e9a1c067374beb1721b491d5c2fbf639881 [2024-10-31 22:04:16,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:04:16,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:04:16,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:04:16,445 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:04:16,445 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:04:16,446 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73bef168-e8a8-4efc-ab3c-04c6badb6ea6/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c Unable to find full path for "g++" [2024-10-31 22:04:18,462 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:04:18,753 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:04:18,753 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73bef168-e8a8-4efc-ab3c-04c6badb6ea6/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2024-10-31 22:04:18,777 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73bef168-e8a8-4efc-ab3c-04c6badb6ea6/bin/uautomizer-verify-4GaUIPS5ZU/data/e50f319ab/a1bfcdf3c6684672b07ba5be9b254dc7/FLAG9844b45bc [2024-10-31 22:04:19,035 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73bef168-e8a8-4efc-ab3c-04c6badb6ea6/bin/uautomizer-verify-4GaUIPS5ZU/data/e50f319ab/a1bfcdf3c6684672b07ba5be9b254dc7 [2024-10-31 22:04:19,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:04:19,044 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:04:19,046 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:19,047 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:04:19,059 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:04:19,060 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:19" (1/1) ... [2024-10-31 22:04:19,061 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@252fa164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:19, skipping insertion in model container [2024-10-31 22:04:19,061 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:19" (1/1) ... [2024-10-31 22:04:19,146 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:04:19,598 WARN L251 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_73bef168-e8a8-4efc-ab3c-04c6badb6ea6/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15613,15626] [2024-10-31 22:04:19,633 WARN L251 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_73bef168-e8a8-4efc-ab3c-04c6badb6ea6/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[16673,16686] [2024-10-31 22:04:19,773 WARN L251 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_73bef168-e8a8-4efc-ab3c-04c6badb6ea6/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[28981,28994] [2024-10-31 22:04:19,783 WARN L251 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_73bef168-e8a8-4efc-ab3c-04c6badb6ea6/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[29628,29641] [2024-10-31 22:04:19,799 WARN L251 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_73bef168-e8a8-4efc-ab3c-04c6badb6ea6/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[30969,30982] [2024-10-31 22:04:19,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:19,851 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:04:19,997 WARN L251 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_73bef168-e8a8-4efc-ab3c-04c6badb6ea6/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15613,15626] [2024-10-31 22:04:20,013 WARN L251 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_73bef168-e8a8-4efc-ab3c-04c6badb6ea6/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[16673,16686] [2024-10-31 22:04:20,184 WARN L251 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_73bef168-e8a8-4efc-ab3c-04c6badb6ea6/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[28981,28994] [2024-10-31 22:04:20,192 WARN L251 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_73bef168-e8a8-4efc-ab3c-04c6badb6ea6/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[29628,29641] [2024-10-31 22:04:20,205 WARN L251 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_73bef168-e8a8-4efc-ab3c-04c6badb6ea6/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[30969,30982] [2024-10-31 22:04:20,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:20,289 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:04:20,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:20 WrapperNode [2024-10-31 22:04:20,293 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:20,294 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:20,294 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:04:20,295 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:04:20,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:20" (1/1) ... [2024-10-31 22:04:20,338 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:20" (1/1) ... [2024-10-31 22:04:20,423 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1792 [2024-10-31 22:04:20,424 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:20,425 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:04:20,428 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:04:20,429 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:04:20,442 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:20" (1/1) ... [2024-10-31 22:04:20,442 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:20" (1/1) ... [2024-10-31 22:04:20,448 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:20" (1/1) ... [2024-10-31 22:04:20,491 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]. [2024-10-31 22:04:20,491 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:20" (1/1) ... [2024-10-31 22:04:20,491 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:20" (1/1) ... [2024-10-31 22:04:20,531 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:20" (1/1) ... [2024-10-31 22:04:20,548 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:20" (1/1) ... [2024-10-31 22:04:20,560 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:20" (1/1) ... [2024-10-31 22:04:20,567 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:20" (1/1) ... [2024-10-31 22:04:20,576 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:04:20,577 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:04:20,578 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:04:20,578 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:04:20,579 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:20" (1/1) ... [2024-10-31 22:04:20,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:04:20,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73bef168-e8a8-4efc-ab3c-04c6badb6ea6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:20,622 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73bef168-e8a8-4efc-ab3c-04c6badb6ea6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:20,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73bef168-e8a8-4efc-ab3c-04c6badb6ea6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:04:20,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:04:20,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:04:20,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:04:20,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:04:20,851 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:04:20,853 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:04:22,550 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2024-10-31 22:04:22,550 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:04:22,584 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:04:22,585 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:04:22,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:22 BoogieIcfgContainer [2024-10-31 22:04:22,585 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:04:22,588 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:04:22,589 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:04:22,593 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:04:22,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:04:19" (1/3) ... [2024-10-31 22:04:22,595 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57c43e75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:04:22, skipping insertion in model container [2024-10-31 22:04:22,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:20" (2/3) ... [2024-10-31 22:04:22,596 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57c43e75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:04:22, skipping insertion in model container [2024-10-31 22:04:22,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:22" (3/3) ... [2024-10-31 22:04:22,598 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2024-10-31 22:04:22,618 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:04:22,619 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-10-31 22:04:22,724 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:04:22,737 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;@c6688ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:04:22,738 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-31 22:04:22,745 INFO L276 IsEmpty]: Start isEmpty. Operand has 413 states, 407 states have (on average 1.805896805896806) internal successors, (735), 412 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:22,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-31 22:04:22,766 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:22,767 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:22,767 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-31 22:04:22,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:22,773 INFO L85 PathProgramCache]: Analyzing trace with hash -969410714, now seen corresponding path program 1 times [2024-10-31 22:04:22,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:22,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022587921] [2024-10-31 22:04:22,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:22,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:23,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:23,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:23,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022587921] [2024-10-31 22:04:23,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022587921] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:23,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:23,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:04:23,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614106339] [2024-10-31 22:04:23,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:23,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:23,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:23,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:23,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:23,764 INFO L87 Difference]: Start difference. First operand has 413 states, 407 states have (on average 1.805896805896806) internal successors, (735), 412 states have internal predecessors, (735), 0 states have call successors, (0), 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 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:24,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:24,052 INFO L93 Difference]: Finished difference Result 742 states and 1300 transitions. [2024-10-31 22:04:24,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:24,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 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 148 [2024-10-31 22:04:24,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:24,082 INFO L225 Difference]: With dead ends: 742 [2024-10-31 22:04:24,082 INFO L226 Difference]: Without dead ends: 595 [2024-10-31 22:04:24,087 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 [2024-10-31 22:04:24,093 INFO L432 NwaCegarLoop]: 700 mSDtfsCounter, 461 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:24,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 1147 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:04:24,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2024-10-31 22:04:24,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 593. [2024-10-31 22:04:24,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 588 states have (on average 1.4829931972789117) internal successors, (872), 592 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:24,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 872 transitions. [2024-10-31 22:04:24,208 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 872 transitions. Word has length 148 [2024-10-31 22:04:24,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:24,210 INFO L471 AbstractCegarLoop]: Abstraction has 593 states and 872 transitions. [2024-10-31 22:04:24,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:24,214 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 872 transitions. [2024-10-31 22:04:24,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-31 22:04:24,217 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:24,221 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:24,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:04:24,221 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-31 22:04:24,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:24,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1257328890, now seen corresponding path program 1 times [2024-10-31 22:04:24,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:24,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515972992] [2024-10-31 22:04:24,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:24,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:24,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:25,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:25,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:25,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515972992] [2024-10-31 22:04:25,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515972992] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:25,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:25,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:04:25,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638465] [2024-10-31 22:04:25,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:25,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:04:25,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:25,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:04:25,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:04:25,180 INFO L87 Difference]: Start difference. First operand 593 states and 872 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:25,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:25,418 INFO L93 Difference]: Finished difference Result 2870 states and 4201 transitions. [2024-10-31 22:04:25,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:04:25,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 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 148 [2024-10-31 22:04:25,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:25,427 INFO L225 Difference]: With dead ends: 2870 [2024-10-31 22:04:25,427 INFO L226 Difference]: Without dead ends: 2286 [2024-10-31 22:04:25,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:04:25,431 INFO L432 NwaCegarLoop]: 957 mSDtfsCounter, 1776 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1776 SdHoareTripleChecker+Valid, 2521 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:25,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1776 Valid, 2521 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:04:25,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2286 states. [2024-10-31 22:04:25,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2286 to 1123. [2024-10-31 22:04:25,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1123 states, 1118 states have (on average 1.4695885509838997) internal successors, (1643), 1122 states have internal predecessors, (1643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:25,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1643 transitions. [2024-10-31 22:04:25,523 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1643 transitions. Word has length 148 [2024-10-31 22:04:25,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:25,523 INFO L471 AbstractCegarLoop]: Abstraction has 1123 states and 1643 transitions. [2024-10-31 22:04:25,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:25,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1643 transitions. [2024-10-31 22:04:25,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-31 22:04:25,531 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:25,531 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:25,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:04:25,532 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-31 22:04:25,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:25,532 INFO L85 PathProgramCache]: Analyzing trace with hash 56469786, now seen corresponding path program 1 times [2024-10-31 22:04:25,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:25,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821663312] [2024-10-31 22:04:25,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:25,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:25,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:25,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:25,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821663312] [2024-10-31 22:04:25,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821663312] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:25,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:25,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:04:25,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662067048] [2024-10-31 22:04:25,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:25,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:25,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:25,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:25,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:25,687 INFO L87 Difference]: Start difference. First operand 1123 states and 1643 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:25,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:25,773 INFO L93 Difference]: Finished difference Result 2220 states and 3243 transitions. [2024-10-31 22:04:25,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:25,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 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 149 [2024-10-31 22:04:25,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:25,780 INFO L225 Difference]: With dead ends: 2220 [2024-10-31 22:04:25,782 INFO L226 Difference]: Without dead ends: 1125 [2024-10-31 22:04:25,783 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 [2024-10-31 22:04:25,786 INFO L432 NwaCegarLoop]: 592 mSDtfsCounter, 0 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:25,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1178 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:04:25,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2024-10-31 22:04:25,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 1125. [2024-10-31 22:04:25,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 1120 states have (on average 1.46875) internal successors, (1645), 1124 states have internal predecessors, (1645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:25,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1645 transitions. [2024-10-31 22:04:25,819 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1645 transitions. Word has length 149 [2024-10-31 22:04:25,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:25,819 INFO L471 AbstractCegarLoop]: Abstraction has 1125 states and 1645 transitions. [2024-10-31 22:04:25,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:25,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1645 transitions. [2024-10-31 22:04:25,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-31 22:04:25,823 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:25,823 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:25,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:04:25,824 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-31 22:04:25,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:25,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1493517127, now seen corresponding path program 1 times [2024-10-31 22:04:25,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:25,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068933667] [2024-10-31 22:04:25,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:25,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:25,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:26,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:26,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:26,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068933667] [2024-10-31 22:04:26,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068933667] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:26,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:26,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:04:26,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248940009] [2024-10-31 22:04:26,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:26,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:04:26,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:26,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:04:26,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:04:26,724 INFO L87 Difference]: Start difference. First operand 1125 states and 1645 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:26,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:26,780 INFO L93 Difference]: Finished difference Result 2236 states and 3269 transitions. [2024-10-31 22:04:26,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:04:26,781 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 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 150 [2024-10-31 22:04:26,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:26,787 INFO L225 Difference]: With dead ends: 2236 [2024-10-31 22:04:26,787 INFO L226 Difference]: Without dead ends: 1125 [2024-10-31 22:04:26,789 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 [2024-10-31 22:04:26,791 INFO L432 NwaCegarLoop]: 628 mSDtfsCounter, 20 mSDsluCounter, 1210 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1838 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:26,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1838 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:04:26,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2024-10-31 22:04:26,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 1124. [2024-10-31 22:04:26,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1119 states have (on average 1.4673815907059875) internal successors, (1642), 1123 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:26,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1642 transitions. [2024-10-31 22:04:26,824 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1642 transitions. Word has length 150 [2024-10-31 22:04:26,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:26,824 INFO L471 AbstractCegarLoop]: Abstraction has 1124 states and 1642 transitions. [2024-10-31 22:04:26,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:26,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1642 transitions. [2024-10-31 22:04:26,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-31 22:04:26,828 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:26,828 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:26,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:04:26,829 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-31 22:04:26,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:26,829 INFO L85 PathProgramCache]: Analyzing trace with hash 2004697853, now seen corresponding path program 1 times [2024-10-31 22:04:26,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:26,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524373872] [2024-10-31 22:04:26,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:26,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:27,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:27,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:27,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524373872] [2024-10-31 22:04:27,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524373872] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:27,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:27,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:04:27,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375308756] [2024-10-31 22:04:27,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:27,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:04:27,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:27,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:04:27,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:04:27,559 INFO L87 Difference]: Start difference. First operand 1124 states and 1642 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:27,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:27,615 INFO L93 Difference]: Finished difference Result 2239 states and 3271 transitions. [2024-10-31 22:04:27,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:04:27,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 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 150 [2024-10-31 22:04:27,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:27,620 INFO L225 Difference]: With dead ends: 2239 [2024-10-31 22:04:27,620 INFO L226 Difference]: Without dead ends: 1122 [2024-10-31 22:04:27,622 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 [2024-10-31 22:04:27,623 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 23 mSDsluCounter, 1210 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1840 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:27,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 1840 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:04:27,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2024-10-31 22:04:27,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 1122. [2024-10-31 22:04:27,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1117 states have (on average 1.4664279319606088) internal successors, (1638), 1121 states have internal predecessors, (1638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:27,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1638 transitions. [2024-10-31 22:04:27,648 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1638 transitions. Word has length 150 [2024-10-31 22:04:27,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:27,649 INFO L471 AbstractCegarLoop]: Abstraction has 1122 states and 1638 transitions. [2024-10-31 22:04:27,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:27,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1638 transitions. [2024-10-31 22:04:27,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-31 22:04:27,652 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:27,652 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:27,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:04:27,653 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-31 22:04:27,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:27,654 INFO L85 PathProgramCache]: Analyzing trace with hash -305501024, now seen corresponding path program 1 times [2024-10-31 22:04:27,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:27,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524888855] [2024-10-31 22:04:27,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:27,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:27,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:27,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:27,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:27,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524888855] [2024-10-31 22:04:27,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524888855] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:27,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:27,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:04:27,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406348736] [2024-10-31 22:04:27,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:27,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:27,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:27,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:27,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:27,832 INFO L87 Difference]: Start difference. First operand 1122 states and 1638 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:27,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:27,924 INFO L93 Difference]: Finished difference Result 2607 states and 3809 transitions. [2024-10-31 22:04:27,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:27,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 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 150 [2024-10-31 22:04:27,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:27,931 INFO L225 Difference]: With dead ends: 2607 [2024-10-31 22:04:27,934 INFO L226 Difference]: Without dead ends: 1677 [2024-10-31 22:04:27,935 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 [2024-10-31 22:04:27,936 INFO L432 NwaCegarLoop]: 1114 mSDtfsCounter, 511 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 1644 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:27,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 1644 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:04:27,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1677 states. [2024-10-31 22:04:27,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1677 to 1651. [2024-10-31 22:04:27,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1651 states, 1646 states have (on average 1.4489671931956258) internal successors, (2385), 1650 states have internal predecessors, (2385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:27,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 2385 transitions. [2024-10-31 22:04:27,973 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 2385 transitions. Word has length 150 [2024-10-31 22:04:27,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:27,974 INFO L471 AbstractCegarLoop]: Abstraction has 1651 states and 2385 transitions. [2024-10-31 22:04:27,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:27,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 2385 transitions. [2024-10-31 22:04:27,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-31 22:04:27,977 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:27,977 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:27,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:04:27,978 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-31 22:04:27,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:27,979 INFO L85 PathProgramCache]: Analyzing trace with hash -297624959, now seen corresponding path program 1 times [2024-10-31 22:04:27,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:27,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792995596] [2024-10-31 22:04:27,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:27,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:28,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:28,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:28,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:28,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792995596] [2024-10-31 22:04:28,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792995596] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:28,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:28,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:04:28,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277462596] [2024-10-31 22:04:28,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:28,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:28,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:28,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:28,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:28,142 INFO L87 Difference]: Start difference. First operand 1651 states and 2385 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:28,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:28,232 INFO L93 Difference]: Finished difference Result 3857 states and 5696 transitions. [2024-10-31 22:04:28,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:28,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 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 152 [2024-10-31 22:04:28,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:28,241 INFO L225 Difference]: With dead ends: 3857 [2024-10-31 22:04:28,241 INFO L226 Difference]: Without dead ends: 2391 [2024-10-31 22:04:28,245 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 [2024-10-31 22:04:28,246 INFO L432 NwaCegarLoop]: 783 mSDtfsCounter, 307 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:28,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 1238 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:04:28,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2391 states. [2024-10-31 22:04:28,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2391 to 2075. [2024-10-31 22:04:28,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2075 states, 2070 states have (on average 1.4859903381642512) internal successors, (3076), 2074 states have internal predecessors, (3076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:28,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2075 states to 2075 states and 3076 transitions. [2024-10-31 22:04:28,316 INFO L78 Accepts]: Start accepts. Automaton has 2075 states and 3076 transitions. Word has length 152 [2024-10-31 22:04:28,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:28,317 INFO L471 AbstractCegarLoop]: Abstraction has 2075 states and 3076 transitions. [2024-10-31 22:04:28,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:28,317 INFO L276 IsEmpty]: Start isEmpty. Operand 2075 states and 3076 transitions. [2024-10-31 22:04:28,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-31 22:04:28,320 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:28,320 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:28,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:04:28,321 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-31 22:04:28,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:28,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1401811482, now seen corresponding path program 1 times [2024-10-31 22:04:28,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:28,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240156482] [2024-10-31 22:04:28,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:28,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:28,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:28,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:28,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:28,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240156482] [2024-10-31 22:04:28,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240156482] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:28,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:28,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:04:28,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966430737] [2024-10-31 22:04:28,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:28,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:28,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:28,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:28,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:28,460 INFO L87 Difference]: Start difference. First operand 2075 states and 3076 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:28,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:28,567 INFO L93 Difference]: Finished difference Result 4927 states and 7467 transitions. [2024-10-31 22:04:28,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:28,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2024-10-31 22:04:28,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:28,577 INFO L225 Difference]: With dead ends: 4927 [2024-10-31 22:04:28,578 INFO L226 Difference]: Without dead ends: 3121 [2024-10-31 22:04:28,580 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 [2024-10-31 22:04:28,581 INFO L432 NwaCegarLoop]: 804 mSDtfsCounter, 336 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1236 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:28,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 1236 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:04:28,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3121 states. [2024-10-31 22:04:28,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3121 to 2829. [2024-10-31 22:04:28,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2829 states, 2824 states have (on average 1.5205382436260624) internal successors, (4294), 2828 states have internal predecessors, (4294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:28,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2829 states to 2829 states and 4294 transitions. [2024-10-31 22:04:28,658 INFO L78 Accepts]: Start accepts. Automaton has 2829 states and 4294 transitions. Word has length 154 [2024-10-31 22:04:28,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:28,658 INFO L471 AbstractCegarLoop]: Abstraction has 2829 states and 4294 transitions. [2024-10-31 22:04:28,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:28,659 INFO L276 IsEmpty]: Start isEmpty. Operand 2829 states and 4294 transitions. [2024-10-31 22:04:28,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-31 22:04:28,662 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:28,662 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:28,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:04:28,662 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-31 22:04:28,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:28,663 INFO L85 PathProgramCache]: Analyzing trace with hash -725008649, now seen corresponding path program 1 times [2024-10-31 22:04:28,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:28,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767684232] [2024-10-31 22:04:28,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:28,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:29,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:29,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:29,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767684232] [2024-10-31 22:04:29,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767684232] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:29,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:29,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:04:29,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125008460] [2024-10-31 22:04:29,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:29,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:04:29,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:29,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:04:29,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:04:29,282 INFO L87 Difference]: Start difference. First operand 2829 states and 4294 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:29,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:29,494 INFO L93 Difference]: Finished difference Result 7334 states and 11133 transitions. [2024-10-31 22:04:29,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:04:29,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 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 155 [2024-10-31 22:04:29,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:29,508 INFO L225 Difference]: With dead ends: 7334 [2024-10-31 22:04:29,508 INFO L226 Difference]: Without dead ends: 4532 [2024-10-31 22:04:29,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:04:29,513 INFO L432 NwaCegarLoop]: 1020 mSDtfsCounter, 511 mSDsluCounter, 1509 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 2529 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:29,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 2529 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:04:29,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4532 states. [2024-10-31 22:04:29,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4532 to 4509. [2024-10-31 22:04:29,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4509 states, 4504 states have (on average 1.507992895204263) internal successors, (6792), 4508 states have internal predecessors, (6792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:29,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4509 states to 4509 states and 6792 transitions. [2024-10-31 22:04:29,622 INFO L78 Accepts]: Start accepts. Automaton has 4509 states and 6792 transitions. Word has length 155 [2024-10-31 22:04:29,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:29,623 INFO L471 AbstractCegarLoop]: Abstraction has 4509 states and 6792 transitions. [2024-10-31 22:04:29,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:29,623 INFO L276 IsEmpty]: Start isEmpty. Operand 4509 states and 6792 transitions. [2024-10-31 22:04:29,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-31 22:04:29,628 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:29,629 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:29,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:04:29,629 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-31 22:04:29,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:29,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1128800555, now seen corresponding path program 1 times [2024-10-31 22:04:29,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:29,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647648629] [2024-10-31 22:04:29,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:29,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:29,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:29,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:29,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647648629] [2024-10-31 22:04:29,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647648629] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:29,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:29,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:04:29,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594682254] [2024-10-31 22:04:29,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:29,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:29,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:29,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:29,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:29,769 INFO L87 Difference]: Start difference. First operand 4509 states and 6792 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:29,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:29,902 INFO L93 Difference]: Finished difference Result 11124 states and 16810 transitions. [2024-10-31 22:04:29,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:29,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2024-10-31 22:04:29,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:29,932 INFO L225 Difference]: With dead ends: 11124 [2024-10-31 22:04:29,932 INFO L226 Difference]: Without dead ends: 6983 [2024-10-31 22:04:29,938 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 [2024-10-31 22:04:29,939 INFO L432 NwaCegarLoop]: 677 mSDtfsCounter, 508 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:29,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 1193 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:04:29,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6983 states. [2024-10-31 22:04:30,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6983 to 6962. [2024-10-31 22:04:30,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6962 states, 6957 states have (on average 1.4913037228690527) internal successors, (10375), 6961 states have internal predecessors, (10375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:30,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6962 states to 6962 states and 10375 transitions. [2024-10-31 22:04:30,152 INFO L78 Accepts]: Start accepts. Automaton has 6962 states and 10375 transitions. Word has length 157 [2024-10-31 22:04:30,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:30,153 INFO L471 AbstractCegarLoop]: Abstraction has 6962 states and 10375 transitions. [2024-10-31 22:04:30,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:30,154 INFO L276 IsEmpty]: Start isEmpty. Operand 6962 states and 10375 transitions. [2024-10-31 22:04:30,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-31 22:04:30,159 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:30,159 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:30,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:04:30,160 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-31 22:04:30,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:30,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1784803505, now seen corresponding path program 1 times [2024-10-31 22:04:30,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:30,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429251424] [2024-10-31 22:04:30,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:30,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:30,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:30,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:30,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:30,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429251424] [2024-10-31 22:04:30,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429251424] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:30,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:30,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:04:30,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490571228] [2024-10-31 22:04:30,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:30,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:30,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:30,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:30,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:30,302 INFO L87 Difference]: Start difference. First operand 6962 states and 10375 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:30,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:30,455 INFO L93 Difference]: Finished difference Result 17925 states and 27159 transitions. [2024-10-31 22:04:30,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:30,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 161 [2024-10-31 22:04:30,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:30,481 INFO L225 Difference]: With dead ends: 17925 [2024-10-31 22:04:30,482 INFO L226 Difference]: Without dead ends: 11300 [2024-10-31 22:04:30,490 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 [2024-10-31 22:04:30,491 INFO L432 NwaCegarLoop]: 779 mSDtfsCounter, 303 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:30,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 1223 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:04:30,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11300 states. [2024-10-31 22:04:30,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11300 to 10360. [2024-10-31 22:04:30,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10360 states, 10355 states have (on average 1.52563978754225) internal successors, (15798), 10359 states have internal predecessors, (15798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:30,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10360 states to 10360 states and 15798 transitions. [2024-10-31 22:04:30,820 INFO L78 Accepts]: Start accepts. Automaton has 10360 states and 15798 transitions. Word has length 161 [2024-10-31 22:04:30,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:30,820 INFO L471 AbstractCegarLoop]: Abstraction has 10360 states and 15798 transitions. [2024-10-31 22:04:30,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:30,821 INFO L276 IsEmpty]: Start isEmpty. Operand 10360 states and 15798 transitions. [2024-10-31 22:04:30,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-31 22:04:30,827 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:30,828 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:30,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:04:30,828 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-31 22:04:30,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:30,829 INFO L85 PathProgramCache]: Analyzing trace with hash 2036829176, now seen corresponding path program 1 times [2024-10-31 22:04:30,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:30,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66150691] [2024-10-31 22:04:30,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:30,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:30,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:31,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:31,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:31,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66150691] [2024-10-31 22:04:31,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66150691] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:31,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:31,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:04:31,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253426408] [2024-10-31 22:04:31,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:31,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:04:31,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:31,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:04:31,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:04:31,694 INFO L87 Difference]: Start difference. First operand 10360 states and 15798 transitions. Second operand has 9 states, 9 states have (on average 18.0) internal successors, (162), 8 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:33,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:33,217 INFO L93 Difference]: Finished difference Result 53192 states and 81967 transitions. [2024-10-31 22:04:33,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-31 22:04:33,218 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.0) internal successors, (162), 8 states have internal predecessors, (162), 0 states have call successors, (0), 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 162 [2024-10-31 22:04:33,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:33,321 INFO L225 Difference]: With dead ends: 53192 [2024-10-31 22:04:33,321 INFO L226 Difference]: Without dead ends: 43243 [2024-10-31 22:04:33,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=221, Unknown=0, NotChecked=0, Total=342 [2024-10-31 22:04:33,341 INFO L432 NwaCegarLoop]: 448 mSDtfsCounter, 5475 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5475 SdHoareTripleChecker+Valid, 2777 SdHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:33,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5475 Valid, 2777 Invalid, 936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 814 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-31 22:04:33,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43243 states. [2024-10-31 22:04:34,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43243 to 28402. [2024-10-31 22:04:34,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28402 states, 28397 states have (on average 1.5240694439553475) internal successors, (43279), 28401 states have internal predecessors, (43279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:34,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28402 states to 28402 states and 43279 transitions. [2024-10-31 22:04:34,345 INFO L78 Accepts]: Start accepts. Automaton has 28402 states and 43279 transitions. Word has length 162 [2024-10-31 22:04:34,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:34,345 INFO L471 AbstractCegarLoop]: Abstraction has 28402 states and 43279 transitions. [2024-10-31 22:04:34,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.0) internal successors, (162), 8 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:34,346 INFO L276 IsEmpty]: Start isEmpty. Operand 28402 states and 43279 transitions. [2024-10-31 22:04:34,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-31 22:04:34,359 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:34,359 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:34,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:04:34,360 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-31 22:04:34,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:34,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1628279716, now seen corresponding path program 1 times [2024-10-31 22:04:34,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:34,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361244684] [2024-10-31 22:04:34,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:34,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:35,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:35,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:35,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361244684] [2024-10-31 22:04:35,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361244684] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:35,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:35,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:04:35,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323659510] [2024-10-31 22:04:35,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:35,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:04:35,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:35,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:04:35,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:04:35,184 INFO L87 Difference]: Start difference. First operand 28402 states and 43279 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:35,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:35,606 INFO L93 Difference]: Finished difference Result 58650 states and 91211 transitions. [2024-10-31 22:04:35,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:04:35,607 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 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 162 [2024-10-31 22:04:35,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:35,714 INFO L225 Difference]: With dead ends: 58650 [2024-10-31 22:04:35,715 INFO L226 Difference]: Without dead ends: 35856 [2024-10-31 22:04:35,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:04:35,741 INFO L432 NwaCegarLoop]: 534 mSDtfsCounter, 695 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:35,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 1067 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:04:35,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35856 states. [2024-10-31 22:04:36,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35856 to 35854. [2024-10-31 22:04:36,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35854 states, 35849 states have (on average 1.5328461044938493) internal successors, (54951), 35853 states have internal predecessors, (54951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:36,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35854 states to 35854 states and 54951 transitions. [2024-10-31 22:04:36,692 INFO L78 Accepts]: Start accepts. Automaton has 35854 states and 54951 transitions. Word has length 162 [2024-10-31 22:04:36,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:36,692 INFO L471 AbstractCegarLoop]: Abstraction has 35854 states and 54951 transitions. [2024-10-31 22:04:36,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:36,693 INFO L276 IsEmpty]: Start isEmpty. Operand 35854 states and 54951 transitions. [2024-10-31 22:04:36,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-31 22:04:36,703 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:36,704 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:36,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:04:36,704 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-31 22:04:36,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:36,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1086737409, now seen corresponding path program 1 times [2024-10-31 22:04:36,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:36,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237742135] [2024-10-31 22:04:36,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:36,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:36,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:37,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:37,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:37,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237742135] [2024-10-31 22:04:37,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237742135] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:37,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:37,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:04:37,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458114947] [2024-10-31 22:04:37,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:37,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:04:37,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:37,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:04:37,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:04:37,618 INFO L87 Difference]: Start difference. First operand 35854 states and 54951 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:38,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:38,670 INFO L93 Difference]: Finished difference Result 164399 states and 251242 transitions. [2024-10-31 22:04:38,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:04:38,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 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 162 [2024-10-31 22:04:38,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:39,248 INFO L225 Difference]: With dead ends: 164399 [2024-10-31 22:04:39,249 INFO L226 Difference]: Without dead ends: 128584 [2024-10-31 22:04:39,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:04:39,320 INFO L432 NwaCegarLoop]: 930 mSDtfsCounter, 1678 mSDsluCounter, 1503 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1678 SdHoareTripleChecker+Valid, 2433 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:39,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1678 Valid, 2433 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:04:39,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128584 states. [2024-10-31 22:04:41,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128584 to 64287. [2024-10-31 22:04:41,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64287 states, 64282 states have (on average 1.5125851715876917) internal successors, (97232), 64286 states have internal predecessors, (97232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:41,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64287 states to 64287 states and 97232 transitions. [2024-10-31 22:04:41,866 INFO L78 Accepts]: Start accepts. Automaton has 64287 states and 97232 transitions. Word has length 162 [2024-10-31 22:04:41,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:41,866 INFO L471 AbstractCegarLoop]: Abstraction has 64287 states and 97232 transitions. [2024-10-31 22:04:41,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:41,867 INFO L276 IsEmpty]: Start isEmpty. Operand 64287 states and 97232 transitions. [2024-10-31 22:04:41,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-10-31 22:04:41,888 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:41,888 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:41,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:04:41,889 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-31 22:04:41,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:41,890 INFO L85 PathProgramCache]: Analyzing trace with hash -2063857833, now seen corresponding path program 1 times [2024-10-31 22:04:41,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:41,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822451275] [2024-10-31 22:04:41,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:41,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:41,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:42,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:42,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:42,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822451275] [2024-10-31 22:04:42,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822451275] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:42,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:42,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:04:42,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623204036] [2024-10-31 22:04:42,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:42,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:42,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:42,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:42,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:42,035 INFO L87 Difference]: Start difference. First operand 64287 states and 97232 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:42,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:42,631 INFO L93 Difference]: Finished difference Result 128474 states and 194334 transitions. [2024-10-31 22:04:42,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:42,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 163 [2024-10-31 22:04:42,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:42,788 INFO L225 Difference]: With dead ends: 128474 [2024-10-31 22:04:42,788 INFO L226 Difference]: Without dead ends: 64293 [2024-10-31 22:04:43,129 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 [2024-10-31 22:04:43,129 INFO L432 NwaCegarLoop]: 576 mSDtfsCounter, 0 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:43,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1146 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:04:43,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64293 states. [2024-10-31 22:04:44,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64293 to 64293. [2024-10-31 22:04:44,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64293 states, 64288 states have (on average 1.5125373320059732) internal successors, (97238), 64292 states have internal predecessors, (97238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:44,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64293 states to 64293 states and 97238 transitions. [2024-10-31 22:04:44,371 INFO L78 Accepts]: Start accepts. Automaton has 64293 states and 97238 transitions. Word has length 163 [2024-10-31 22:04:44,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:44,371 INFO L471 AbstractCegarLoop]: Abstraction has 64293 states and 97238 transitions. [2024-10-31 22:04:44,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:44,372 INFO L276 IsEmpty]: Start isEmpty. Operand 64293 states and 97238 transitions. [2024-10-31 22:04:44,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-10-31 22:04:44,387 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:44,387 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:44,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 22:04:44,387 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-10-31 22:04:44,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:44,388 INFO L85 PathProgramCache]: Analyzing trace with hash -965969025, now seen corresponding path program 1 times [2024-10-31 22:04:44,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:44,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670868859] [2024-10-31 22:04:44,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:44,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:44,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat