./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d0b255ca8288d7fec2d600e13b499a216c3c13b3ba13eac2e9a1248f762a9435 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:18:24,347 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:18:24,455 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:18:24,462 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:18:24,465 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:18:24,522 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:18:24,523 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:18:24,524 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:18:24,525 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:18:24,527 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:18:24,527 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:18:24,528 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:18:24,528 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:18:24,529 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:18:24,529 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:18:24,530 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:18:24,530 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:18:24,534 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:18:24,535 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:18:24,535 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:18:24,536 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:18:24,540 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:18:24,541 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:18:24,542 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:18:24,542 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:18:24,543 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:18:24,543 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:18:24,543 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:18:24,544 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:18:24,544 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:18:24,544 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:18:24,545 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:18:24,545 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:18:24,545 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:18:24,547 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:18:24,548 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:18:24,549 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:18:24,549 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:18:24,549 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:18:24,550 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:18:24,550 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:18:24,551 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:18:24,551 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:18:24,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:18:24,552 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:18:24,552 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:18:24,553 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:18:24,553 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0b255ca8288d7fec2d600e13b499a216c3c13b3ba13eac2e9a1248f762a9435 [2024-11-09 05:18:24,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:18:24,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:18:24,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:18:24,925 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:18:24,926 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:18:24,927 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c Unable to find full path for "g++" [2024-11-09 05:18:26,940 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:18:27,490 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:18:27,492 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2024-11-09 05:18:27,538 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje/data/b25958a38/162d14d8c7b64cec8818126d71b9d183/FLAG91b1bb77d [2024-11-09 05:18:28,021 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje/data/b25958a38/162d14d8c7b64cec8818126d71b9d183 [2024-11-09 05:18:28,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:18:28,026 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:18:28,027 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:18:28,028 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:18:28,036 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:18:28,037 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:18:28" (1/1) ... [2024-11-09 05:18:28,038 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13da5762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:18:28, skipping insertion in model container [2024-11-09 05:18:28,041 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:18:28" (1/1) ... [2024-11-09 05:18:28,222 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:18:28,804 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32048,32061] [2024-11-09 05:18:28,940 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[55802,55815] [2024-11-09 05:18:28,981 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[64372,64385] [2024-11-09 05:18:29,124 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[91775,91788] [2024-11-09 05:18:29,184 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[106857,106870] [2024-11-09 05:18:29,257 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[123963,123976] [2024-11-09 05:18:29,317 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[141761,141774] [2024-11-09 05:18:29,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:18:29,616 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:18:29,737 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32048,32061] [2024-11-09 05:18:29,807 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[55802,55815] [2024-11-09 05:18:29,833 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[64372,64385] [2024-11-09 05:18:29,977 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[91775,91788] [2024-11-09 05:18:30,018 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[106857,106870] [2024-11-09 05:18:30,069 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[123963,123976] [2024-11-09 05:18:30,121 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[141761,141774] [2024-11-09 05:18:30,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:18:30,388 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:18:30,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:18:30 WrapperNode [2024-11-09 05:18:30,390 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:18:30,391 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:18:30,391 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:18:30,391 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:18:30,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:18:30" (1/1) ... [2024-11-09 05:18:30,466 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:18:30" (1/1) ... [2024-11-09 05:18:30,694 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 10246 [2024-11-09 05:18:30,694 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:18:30,695 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:18:30,695 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:18:30,696 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:18:30,705 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:18:30" (1/1) ... [2024-11-09 05:18:30,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:18:30" (1/1) ... [2024-11-09 05:18:30,758 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:18:30" (1/1) ... [2024-11-09 05:18:30,759 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:18:30" (1/1) ... [2024-11-09 05:18:30,845 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:18:30" (1/1) ... [2024-11-09 05:18:30,876 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:18:30" (1/1) ... [2024-11-09 05:18:30,892 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:18:30" (1/1) ... [2024-11-09 05:18:30,908 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:18:30" (1/1) ... [2024-11-09 05:18:30,934 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:18:30,935 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:18:30,935 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:18:30,935 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:18:30,936 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:18:30" (1/1) ... [2024-11-09 05:18:30,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:18:30,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:18:30,969 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:18:31,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:18:31,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:18:31,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:18:31,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:18:31,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:18:31,534 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:18:31,537 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:18:38,398 INFO L? ?]: Removed 1980 outVars from TransFormulas that were not future-live. [2024-11-09 05:18:38,399 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:18:39,095 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:18:39,095 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:18:39,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:18:39 BoogieIcfgContainer [2024-11-09 05:18:39,096 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:18:39,100 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:18:39,100 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:18:39,104 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:18:39,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:18:28" (1/3) ... [2024-11-09 05:18:39,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28be8dde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:18:39, skipping insertion in model container [2024-11-09 05:18:39,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:18:30" (2/3) ... [2024-11-09 05:18:39,106 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28be8dde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:18:39, skipping insertion in model container [2024-11-09 05:18:39,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:18:39" (3/3) ... [2024-11-09 05:18:39,108 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2024-11-09 05:18:39,130 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:18:39,130 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-09 05:18:39,298 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:18:39,311 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=FINITE_AUTOMATA, 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;@78512174, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:18:39,315 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-09 05:18:39,333 INFO L276 IsEmpty]: Start isEmpty. Operand has 1988 states, 1980 states have (on average 1.7772727272727273) internal successors, (3519), 1987 states have internal predecessors, (3519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:18:39,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 05:18:39,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:18:39,375 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:18:39,375 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:18:39,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:18:39,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1909444281, now seen corresponding path program 1 times [2024-11-09 05:18:39,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:18:39,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14121186] [2024-11-09 05:18:39,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:39,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:18:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:18:40,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:18:40,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:18:40,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14121186] [2024-11-09 05:18:40,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14121186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:18:40,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:18:40,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:18:40,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338308243] [2024-11-09 05:18:40,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:18:40,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:18:40,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:18:40,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:18:40,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:18:40,366 INFO L87 Difference]: Start difference. First operand has 1988 states, 1980 states have (on average 1.7772727272727273) internal successors, (3519), 1987 states have internal predecessors, (3519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:18:43,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:18:43,123 INFO L93 Difference]: Finished difference Result 3171 states and 5495 transitions. [2024-11-09 05:18:43,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:18:43,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-09 05:18:43,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:18:43,164 INFO L225 Difference]: With dead ends: 3171 [2024-11-09 05:18:43,165 INFO L226 Difference]: Without dead ends: 2042 [2024-11-09 05:18:43,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:18:43,182 INFO L432 NwaCegarLoop]: 1646 mSDtfsCounter, 9721 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9721 SdHoareTripleChecker+Valid, 2108 SdHoareTripleChecker+Invalid, 1523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:18:43,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9721 Valid, 2108 Invalid, 1523 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 1501 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-09 05:18:43,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2042 states. [2024-11-09 05:18:43,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2042 to 2027. [2024-11-09 05:18:43,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 2020 states have (on average 1.2806930693069307) internal successors, (2587), 2026 states have internal predecessors, (2587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:18:43,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 2587 transitions. [2024-11-09 05:18:43,354 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 2587 transitions. Word has length 64 [2024-11-09 05:18:43,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:18:43,356 INFO L471 AbstractCegarLoop]: Abstraction has 2027 states and 2587 transitions. [2024-11-09 05:18:43,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:18:43,358 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 2587 transitions. [2024-11-09 05:18:43,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 05:18:43,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:18:43,366 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:18:43,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:18:43,367 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:18:43,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:18:43,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1273964660, now seen corresponding path program 1 times [2024-11-09 05:18:43,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:18:43,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228968846] [2024-11-09 05:18:43,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:43,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:18:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:18:43,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:18:43,842 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:18:43,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228968846] [2024-11-09 05:18:43,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228968846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:18:43,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:18:43,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:18:43,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010909492] [2024-11-09 05:18:43,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:18:43,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:18:43,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:18:43,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:18:43,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:18:43,848 INFO L87 Difference]: Start difference. First operand 2027 states and 2587 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:18:45,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:18:45,913 INFO L93 Difference]: Finished difference Result 4107 states and 5301 transitions. [2024-11-09 05:18:45,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:18:45,913 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-09 05:18:45,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:18:45,922 INFO L225 Difference]: With dead ends: 4107 [2024-11-09 05:18:45,922 INFO L226 Difference]: Without dead ends: 2761 [2024-11-09 05:18:45,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:18:45,925 INFO L432 NwaCegarLoop]: 1018 mSDtfsCounter, 7477 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7477 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:18:45,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7477 Valid, 1378 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-09 05:18:45,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2761 states. [2024-11-09 05:18:45,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2761 to 2755. [2024-11-09 05:18:45,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2755 states, 2748 states have (on average 1.2802037845705967) internal successors, (3518), 2754 states have internal predecessors, (3518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:18:45,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 3518 transitions. [2024-11-09 05:18:45,991 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 3518 transitions. Word has length 65 [2024-11-09 05:18:45,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:18:45,992 INFO L471 AbstractCegarLoop]: Abstraction has 2755 states and 3518 transitions. [2024-11-09 05:18:45,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:18:45,992 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 3518 transitions. [2024-11-09 05:18:45,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 05:18:45,996 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:18:45,997 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:18:45,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:18:45,997 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:18:45,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:18:45,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1135153234, now seen corresponding path program 1 times [2024-11-09 05:18:45,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:18:45,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503407119] [2024-11-09 05:18:45,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:45,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:18:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:18:46,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:18:46,241 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:18:46,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503407119] [2024-11-09 05:18:46,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503407119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:18:46,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:18:46,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:18:46,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617090317] [2024-11-09 05:18:46,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:18:46,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:18:46,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:18:46,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:18:46,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:18:46,244 INFO L87 Difference]: Start difference. First operand 2755 states and 3518 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:18:48,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:18:48,104 INFO L93 Difference]: Finished difference Result 5639 states and 7178 transitions. [2024-11-09 05:18:48,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:18:48,106 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-09 05:18:48,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:18:48,118 INFO L225 Difference]: With dead ends: 5639 [2024-11-09 05:18:48,118 INFO L226 Difference]: Without dead ends: 3704 [2024-11-09 05:18:48,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:18:48,124 INFO L432 NwaCegarLoop]: 959 mSDtfsCounter, 6948 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 1293 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6948 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:18:48,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6948 Valid, 1296 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1293 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 05:18:48,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3704 states. [2024-11-09 05:18:48,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3704 to 3688. [2024-11-09 05:18:48,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3688 states, 3681 states have (on average 1.2553653898397175) internal successors, (4621), 3687 states have internal predecessors, (4621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:18:48,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3688 states to 3688 states and 4621 transitions. [2024-11-09 05:18:48,223 INFO L78 Accepts]: Start accepts. Automaton has 3688 states and 4621 transitions. Word has length 65 [2024-11-09 05:18:48,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:18:48,225 INFO L471 AbstractCegarLoop]: Abstraction has 3688 states and 4621 transitions. [2024-11-09 05:18:48,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:18:48,225 INFO L276 IsEmpty]: Start isEmpty. Operand 3688 states and 4621 transitions. [2024-11-09 05:18:48,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-09 05:18:48,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:18:48,232 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:18:48,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:18:48,233 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:18:48,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:18:48,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1544378841, now seen corresponding path program 1 times [2024-11-09 05:18:48,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:18:48,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718322350] [2024-11-09 05:18:48,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:48,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:18:48,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:18:48,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:18:48,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:18:48,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718322350] [2024-11-09 05:18:48,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718322350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:18:48,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:18:48,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 05:18:48,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149447551] [2024-11-09 05:18:48,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:18:48,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 05:18:48,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:18:48,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 05:18:48,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:18:48,892 INFO L87 Difference]: Start difference. First operand 3688 states and 4621 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:18:52,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:18:52,588 INFO L93 Difference]: Finished difference Result 5070 states and 6379 transitions. [2024-11-09 05:18:52,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:18:52,589 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-09 05:18:52,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:18:52,604 INFO L225 Difference]: With dead ends: 5070 [2024-11-09 05:18:52,604 INFO L226 Difference]: Without dead ends: 4489 [2024-11-09 05:18:52,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-11-09 05:18:52,610 INFO L432 NwaCegarLoop]: 976 mSDtfsCounter, 7019 mSDsluCounter, 4184 mSDsCounter, 0 mSdLazyCounter, 5700 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7019 SdHoareTripleChecker+Valid, 5160 SdHoareTripleChecker+Invalid, 5708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 5700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:18:52,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7019 Valid, 5160 Invalid, 5708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 5700 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-09 05:18:52,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4489 states. [2024-11-09 05:18:52,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4489 to 3695. [2024-11-09 05:18:52,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3695 states, 3688 states have (on average 1.254880694143167) internal successors, (4628), 3694 states have internal predecessors, (4628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:18:52,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3695 states to 3695 states and 4628 transitions. [2024-11-09 05:18:52,710 INFO L78 Accepts]: Start accepts. Automaton has 3695 states and 4628 transitions. Word has length 66 [2024-11-09 05:18:52,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:18:52,711 INFO L471 AbstractCegarLoop]: Abstraction has 3695 states and 4628 transitions. [2024-11-09 05:18:52,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:18:52,711 INFO L276 IsEmpty]: Start isEmpty. Operand 3695 states and 4628 transitions. [2024-11-09 05:18:52,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 05:18:52,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:18:52,717 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:18:52,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 05:18:52,718 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:18:52,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:18:52,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1262167379, now seen corresponding path program 1 times [2024-11-09 05:18:52,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:18:52,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989461821] [2024-11-09 05:18:52,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:52,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:18:52,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:18:52,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:18:52,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:18:52,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989461821] [2024-11-09 05:18:52,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989461821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:18:52,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:18:52,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:18:52,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451639303] [2024-11-09 05:18:52,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:18:52,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:18:52,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:18:52,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:18:52,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:18:52,917 INFO L87 Difference]: Start difference. First operand 3695 states and 4628 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:18:54,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:18:54,207 INFO L93 Difference]: Finished difference Result 7188 states and 9035 transitions. [2024-11-09 05:18:54,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:18:54,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-09 05:18:54,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:18:54,222 INFO L225 Difference]: With dead ends: 7188 [2024-11-09 05:18:54,222 INFO L226 Difference]: Without dead ends: 4857 [2024-11-09 05:18:54,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:18:54,227 INFO L432 NwaCegarLoop]: 837 mSDtfsCounter, 6026 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6026 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:18:54,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6026 Valid, 1141 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 05:18:54,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4857 states. [2024-11-09 05:18:54,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4857 to 4847. [2024-11-09 05:18:54,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4847 states, 4840 states have (on average 1.2524793388429751) internal successors, (6062), 4846 states have internal predecessors, (6062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:18:54,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4847 states to 4847 states and 6062 transitions. [2024-11-09 05:18:54,359 INFO L78 Accepts]: Start accepts. Automaton has 4847 states and 6062 transitions. Word has length 67 [2024-11-09 05:18:54,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:18:54,359 INFO L471 AbstractCegarLoop]: Abstraction has 4847 states and 6062 transitions. [2024-11-09 05:18:54,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:18:54,360 INFO L276 IsEmpty]: Start isEmpty. Operand 4847 states and 6062 transitions. [2024-11-09 05:18:54,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 05:18:54,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:18:54,366 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:18:54,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:18:54,367 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:18:54,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:18:54,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1978451918, now seen corresponding path program 1 times [2024-11-09 05:18:54,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:18:54,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736894169] [2024-11-09 05:18:54,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:54,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:18:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:18:55,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:18:55,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:18:55,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736894169] [2024-11-09 05:18:55,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736894169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:18:55,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:18:55,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 05:18:55,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684824352] [2024-11-09 05:18:55,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:18:55,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 05:18:55,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:18:55,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 05:18:55,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:18:55,033 INFO L87 Difference]: Start difference. First operand 4847 states and 6062 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:18:57,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:18:57,365 INFO L93 Difference]: Finished difference Result 5839 states and 7315 transitions. [2024-11-09 05:18:57,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:18:57,366 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-09 05:18:57,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:18:57,380 INFO L225 Difference]: With dead ends: 5839 [2024-11-09 05:18:57,380 INFO L226 Difference]: Without dead ends: 5833 [2024-11-09 05:18:57,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-11-09 05:18:57,382 INFO L432 NwaCegarLoop]: 870 mSDtfsCounter, 6216 mSDsluCounter, 2772 mSDsCounter, 0 mSdLazyCounter, 3399 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6216 SdHoareTripleChecker+Valid, 3642 SdHoareTripleChecker+Invalid, 3416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:18:57,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6216 Valid, 3642 Invalid, 3416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 3399 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-09 05:18:57,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5833 states. [2024-11-09 05:18:57,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5833 to 4847. [2024-11-09 05:18:57,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4847 states, 4840 states have (on average 1.2522727272727272) internal successors, (6061), 4846 states have internal predecessors, (6061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:18:57,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4847 states to 4847 states and 6061 transitions. [2024-11-09 05:18:57,495 INFO L78 Accepts]: Start accepts. Automaton has 4847 states and 6061 transitions. Word has length 67 [2024-11-09 05:18:57,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:18:57,495 INFO L471 AbstractCegarLoop]: Abstraction has 4847 states and 6061 transitions. [2024-11-09 05:18:57,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:18:57,496 INFO L276 IsEmpty]: Start isEmpty. Operand 4847 states and 6061 transitions. [2024-11-09 05:18:57,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 05:18:57,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:18:57,504 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:18:57,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 05:18:57,504 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:18:57,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:18:57,505 INFO L85 PathProgramCache]: Analyzing trace with hash -396667281, now seen corresponding path program 1 times [2024-11-09 05:18:57,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:18:57,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125237508] [2024-11-09 05:18:57,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:57,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:18:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:18:58,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:18:58,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:18:58,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125237508] [2024-11-09 05:18:58,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125237508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:18:58,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:18:58,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 05:18:58,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387995433] [2024-11-09 05:18:58,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:18:58,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:18:58,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:18:58,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:18:58,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-09 05:18:58,475 INFO L87 Difference]: Start difference. First operand 4847 states and 6061 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:00,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:00,827 INFO L93 Difference]: Finished difference Result 7800 states and 9796 transitions. [2024-11-09 05:19:00,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 05:19:00,828 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-09 05:19:00,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:00,849 INFO L225 Difference]: With dead ends: 7800 [2024-11-09 05:19:00,850 INFO L226 Difference]: Without dead ends: 7796 [2024-11-09 05:19:00,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2024-11-09 05:19:00,853 INFO L432 NwaCegarLoop]: 1447 mSDtfsCounter, 9941 mSDsluCounter, 9574 mSDsCounter, 0 mSdLazyCounter, 2241 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9941 SdHoareTripleChecker+Valid, 11021 SdHoareTripleChecker+Invalid, 2260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:00,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9941 Valid, 11021 Invalid, 2260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2241 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 05:19:00,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7796 states. [2024-11-09 05:19:00,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7796 to 4843. [2024-11-09 05:19:00,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4843 states, 4837 states have (on average 1.252015712218317) internal successors, (6056), 4842 states have internal predecessors, (6056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:00,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4843 states to 4843 states and 6056 transitions. [2024-11-09 05:19:00,998 INFO L78 Accepts]: Start accepts. Automaton has 4843 states and 6056 transitions. Word has length 67 [2024-11-09 05:19:00,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:00,998 INFO L471 AbstractCegarLoop]: Abstraction has 4843 states and 6056 transitions. [2024-11-09 05:19:00,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:00,999 INFO L276 IsEmpty]: Start isEmpty. Operand 4843 states and 6056 transitions. [2024-11-09 05:19:01,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 05:19:01,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:01,004 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] [2024-11-09 05:19:01,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 05:19:01,004 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:01,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:01,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1679399413, now seen corresponding path program 1 times [2024-11-09 05:19:01,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:01,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35995330] [2024-11-09 05:19:01,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:01,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:01,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:01,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:01,454 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:01,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35995330] [2024-11-09 05:19:01,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35995330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:01,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:01,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 05:19:01,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662199066] [2024-11-09 05:19:01,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:01,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 05:19:01,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:01,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 05:19:01,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:19:01,457 INFO L87 Difference]: Start difference. First operand 4843 states and 6056 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:04,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:04,205 INFO L93 Difference]: Finished difference Result 7082 states and 8991 transitions. [2024-11-09 05:19:04,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 05:19:04,205 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-09 05:19:04,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:04,216 INFO L225 Difference]: With dead ends: 7082 [2024-11-09 05:19:04,216 INFO L226 Difference]: Without dead ends: 6143 [2024-11-09 05:19:04,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-09 05:19:04,222 INFO L432 NwaCegarLoop]: 919 mSDtfsCounter, 6234 mSDsluCounter, 3846 mSDsCounter, 0 mSdLazyCounter, 4409 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6234 SdHoareTripleChecker+Valid, 4765 SdHoareTripleChecker+Invalid, 4437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 4409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:04,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6234 Valid, 4765 Invalid, 4437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 4409 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-09 05:19:04,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6143 states. [2024-11-09 05:19:04,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6143 to 4822. [2024-11-09 05:19:04,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4822 states, 4816 states have (on average 1.2520764119601329) internal successors, (6030), 4821 states have internal predecessors, (6030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:04,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4822 states to 4822 states and 6030 transitions. [2024-11-09 05:19:04,318 INFO L78 Accepts]: Start accepts. Automaton has 4822 states and 6030 transitions. Word has length 68 [2024-11-09 05:19:04,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:04,319 INFO L471 AbstractCegarLoop]: Abstraction has 4822 states and 6030 transitions. [2024-11-09 05:19:04,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:04,319 INFO L276 IsEmpty]: Start isEmpty. Operand 4822 states and 6030 transitions. [2024-11-09 05:19:04,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 05:19:04,324 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:04,324 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] [2024-11-09 05:19:04,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 05:19:04,325 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:04,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:04,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1296136613, now seen corresponding path program 1 times [2024-11-09 05:19:04,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:04,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646440035] [2024-11-09 05:19:04,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:04,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:05,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:05,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:05,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646440035] [2024-11-09 05:19:05,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646440035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:05,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:05,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 05:19:05,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840599726] [2024-11-09 05:19:05,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:05,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 05:19:05,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:05,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 05:19:05,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-09 05:19:05,272 INFO L87 Difference]: Start difference. First operand 4822 states and 6030 transitions. Second operand has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 13 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:07,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:07,480 INFO L93 Difference]: Finished difference Result 8975 states and 11502 transitions. [2024-11-09 05:19:07,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 05:19:07,480 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 13 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-09 05:19:07,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:07,493 INFO L225 Difference]: With dead ends: 8975 [2024-11-09 05:19:07,493 INFO L226 Difference]: Without dead ends: 8012 [2024-11-09 05:19:07,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=168, Invalid=482, Unknown=0, NotChecked=0, Total=650 [2024-11-09 05:19:07,497 INFO L432 NwaCegarLoop]: 1532 mSDtfsCounter, 11980 mSDsluCounter, 9004 mSDsCounter, 0 mSdLazyCounter, 1678 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11980 SdHoareTripleChecker+Valid, 10536 SdHoareTripleChecker+Invalid, 1704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:07,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11980 Valid, 10536 Invalid, 1704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1678 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 05:19:07,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8012 states. [2024-11-09 05:19:07,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8012 to 4773. [2024-11-09 05:19:07,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4773 states, 4768 states have (on average 1.2531459731543624) internal successors, (5975), 4772 states have internal predecessors, (5975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:07,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4773 states to 4773 states and 5975 transitions. [2024-11-09 05:19:07,683 INFO L78 Accepts]: Start accepts. Automaton has 4773 states and 5975 transitions. Word has length 68 [2024-11-09 05:19:07,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:07,685 INFO L471 AbstractCegarLoop]: Abstraction has 4773 states and 5975 transitions. [2024-11-09 05:19:07,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 13 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:07,685 INFO L276 IsEmpty]: Start isEmpty. Operand 4773 states and 5975 transitions. [2024-11-09 05:19:07,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 05:19:07,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:07,693 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:19:07,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 05:19:07,693 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:07,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:07,694 INFO L85 PathProgramCache]: Analyzing trace with hash 479527467, now seen corresponding path program 1 times [2024-11-09 05:19:07,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:07,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053886808] [2024-11-09 05:19:07,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:07,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:07,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:08,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:08,705 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:08,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053886808] [2024-11-09 05:19:08,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053886808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:08,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:08,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 05:19:08,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190132248] [2024-11-09 05:19:08,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:08,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:19:08,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:08,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:19:08,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-09 05:19:08,709 INFO L87 Difference]: Start difference. First operand 4773 states and 5975 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:10,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:10,909 INFO L93 Difference]: Finished difference Result 9264 states and 11802 transitions. [2024-11-09 05:19:10,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 05:19:10,909 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-09 05:19:10,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:10,972 INFO L225 Difference]: With dead ends: 9264 [2024-11-09 05:19:10,972 INFO L226 Difference]: Without dead ends: 8322 [2024-11-09 05:19:10,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2024-11-09 05:19:10,976 INFO L432 NwaCegarLoop]: 1499 mSDtfsCounter, 9901 mSDsluCounter, 7490 mSDsCounter, 0 mSdLazyCounter, 1709 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9901 SdHoareTripleChecker+Valid, 8989 SdHoareTripleChecker+Invalid, 1711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:10,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9901 Valid, 8989 Invalid, 1711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1709 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 05:19:10,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8322 states. [2024-11-09 05:19:11,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8322 to 4783. [2024-11-09 05:19:11,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4783 states, 4778 states have (on average 1.2532440351611553) internal successors, (5988), 4782 states have internal predecessors, (5988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:11,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4783 states to 4783 states and 5988 transitions. [2024-11-09 05:19:11,059 INFO L78 Accepts]: Start accepts. Automaton has 4783 states and 5988 transitions. Word has length 69 [2024-11-09 05:19:11,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:11,059 INFO L471 AbstractCegarLoop]: Abstraction has 4783 states and 5988 transitions. [2024-11-09 05:19:11,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:11,060 INFO L276 IsEmpty]: Start isEmpty. Operand 4783 states and 5988 transitions. [2024-11-09 05:19:11,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 05:19:11,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:11,065 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] [2024-11-09 05:19:11,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 05:19:11,066 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:11,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:11,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1779915904, now seen corresponding path program 1 times [2024-11-09 05:19:11,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:11,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731584849] [2024-11-09 05:19:11,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:11,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:11,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:11,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:11,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:11,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731584849] [2024-11-09 05:19:11,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731584849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:11,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:11,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:19:11,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595050619] [2024-11-09 05:19:11,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:11,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:19:11,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:11,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:19:11,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:19:11,167 INFO L87 Difference]: Start difference. First operand 4783 states and 5988 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:11,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:11,440 INFO L93 Difference]: Finished difference Result 9351 states and 11774 transitions. [2024-11-09 05:19:11,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:19:11,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-09 05:19:11,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:11,448 INFO L225 Difference]: With dead ends: 9351 [2024-11-09 05:19:11,449 INFO L226 Difference]: Without dead ends: 5737 [2024-11-09 05:19:11,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:19:11,453 INFO L432 NwaCegarLoop]: 1454 mSDtfsCounter, 1460 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1460 SdHoareTripleChecker+Valid, 1933 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:11,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1460 Valid, 1933 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:19:11,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5737 states. [2024-11-09 05:19:11,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5737 to 5726. [2024-11-09 05:19:11,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5726 states, 5722 states have (on average 1.247116392869626) internal successors, (7136), 5725 states have internal predecessors, (7136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:11,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5726 states to 5726 states and 7136 transitions. [2024-11-09 05:19:11,535 INFO L78 Accepts]: Start accepts. Automaton has 5726 states and 7136 transitions. Word has length 70 [2024-11-09 05:19:11,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:11,536 INFO L471 AbstractCegarLoop]: Abstraction has 5726 states and 7136 transitions. [2024-11-09 05:19:11,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:11,536 INFO L276 IsEmpty]: Start isEmpty. Operand 5726 states and 7136 transitions. [2024-11-09 05:19:11,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 05:19:11,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:11,542 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] [2024-11-09 05:19:11,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 05:19:11,542 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:11,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:11,543 INFO L85 PathProgramCache]: Analyzing trace with hash 912265829, now seen corresponding path program 1 times [2024-11-09 05:19:11,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:11,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822146362] [2024-11-09 05:19:11,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:11,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:11,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:11,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:11,636 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:11,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822146362] [2024-11-09 05:19:11,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822146362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:11,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:11,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:19:11,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440521066] [2024-11-09 05:19:11,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:11,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:19:11,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:11,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:19:11,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:19:11,638 INFO L87 Difference]: Start difference. First operand 5726 states and 7136 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:11,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:11,795 INFO L93 Difference]: Finished difference Result 8689 states and 11029 transitions. [2024-11-09 05:19:11,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:19:11,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-09 05:19:11,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:11,805 INFO L225 Difference]: With dead ends: 8689 [2024-11-09 05:19:11,805 INFO L226 Difference]: Without dead ends: 5274 [2024-11-09 05:19:11,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:19:11,809 INFO L432 NwaCegarLoop]: 1151 mSDtfsCounter, 1112 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 1545 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:11,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1112 Valid, 1545 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:19:11,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5274 states. [2024-11-09 05:19:11,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5274 to 5261. [2024-11-09 05:19:11,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5261 states, 5258 states have (on average 1.2641688855077977) internal successors, (6647), 5260 states have internal predecessors, (6647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:11,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5261 states to 5261 states and 6647 transitions. [2024-11-09 05:19:11,877 INFO L78 Accepts]: Start accepts. Automaton has 5261 states and 6647 transitions. Word has length 70 [2024-11-09 05:19:11,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:11,878 INFO L471 AbstractCegarLoop]: Abstraction has 5261 states and 6647 transitions. [2024-11-09 05:19:11,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:11,878 INFO L276 IsEmpty]: Start isEmpty. Operand 5261 states and 6647 transitions. [2024-11-09 05:19:11,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 05:19:11,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:11,883 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] [2024-11-09 05:19:11,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 05:19:11,883 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:11,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:11,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1909306532, now seen corresponding path program 1 times [2024-11-09 05:19:11,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:11,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465617976] [2024-11-09 05:19:11,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:11,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:11,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:12,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:12,224 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:12,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465617976] [2024-11-09 05:19:12,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465617976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:12,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:12,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 05:19:12,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616412787] [2024-11-09 05:19:12,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:12,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 05:19:12,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:12,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 05:19:12,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:19:12,227 INFO L87 Difference]: Start difference. First operand 5261 states and 6647 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:14,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:14,130 INFO L93 Difference]: Finished difference Result 7810 states and 9918 transitions. [2024-11-09 05:19:14,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:19:14,130 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-09 05:19:14,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:14,144 INFO L225 Difference]: With dead ends: 7810 [2024-11-09 05:19:14,144 INFO L226 Difference]: Without dead ends: 7801 [2024-11-09 05:19:14,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-11-09 05:19:14,148 INFO L432 NwaCegarLoop]: 684 mSDtfsCounter, 3056 mSDsluCounter, 2098 mSDsCounter, 0 mSdLazyCounter, 2726 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3056 SdHoareTripleChecker+Valid, 2782 SdHoareTripleChecker+Invalid, 2762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:14,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3056 Valid, 2782 Invalid, 2762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2726 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 05:19:14,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7801 states. [2024-11-09 05:19:14,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7801 to 5261. [2024-11-09 05:19:14,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5261 states, 5258 states have (on average 1.2639786991251427) internal successors, (6646), 5260 states have internal predecessors, (6646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:14,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5261 states to 5261 states and 6646 transitions. [2024-11-09 05:19:14,297 INFO L78 Accepts]: Start accepts. Automaton has 5261 states and 6646 transitions. Word has length 70 [2024-11-09 05:19:14,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:14,298 INFO L471 AbstractCegarLoop]: Abstraction has 5261 states and 6646 transitions. [2024-11-09 05:19:14,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:14,298 INFO L276 IsEmpty]: Start isEmpty. Operand 5261 states and 6646 transitions. [2024-11-09 05:19:14,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-09 05:19:14,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:14,304 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:19:14,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 05:19:14,304 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:14,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:14,305 INFO L85 PathProgramCache]: Analyzing trace with hash -902166453, now seen corresponding path program 1 times [2024-11-09 05:19:14,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:14,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154606175] [2024-11-09 05:19:14,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:14,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:14,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:15,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:15,276 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:15,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154606175] [2024-11-09 05:19:15,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154606175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:15,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:15,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 05:19:15,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608041373] [2024-11-09 05:19:15,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:15,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 05:19:15,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:15,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 05:19:15,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-09 05:19:15,278 INFO L87 Difference]: Start difference. First operand 5261 states and 6646 transitions. Second operand has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:17,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:17,281 INFO L93 Difference]: Finished difference Result 10402 states and 13351 transitions. [2024-11-09 05:19:17,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 05:19:17,282 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-09 05:19:17,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:17,297 INFO L225 Difference]: With dead ends: 10402 [2024-11-09 05:19:17,297 INFO L226 Difference]: Without dead ends: 10390 [2024-11-09 05:19:17,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2024-11-09 05:19:17,301 INFO L432 NwaCegarLoop]: 1026 mSDtfsCounter, 5984 mSDsluCounter, 7170 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5984 SdHoareTripleChecker+Valid, 8196 SdHoareTripleChecker+Invalid, 1505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:17,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5984 Valid, 8196 Invalid, 1505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 05:19:17,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10390 states. [2024-11-09 05:19:17,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10390 to 5249. [2024-11-09 05:19:17,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 5247 states have (on average 1.264341528492472) internal successors, (6634), 5248 states have internal predecessors, (6634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:17,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 6634 transitions. [2024-11-09 05:19:17,449 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 6634 transitions. Word has length 71 [2024-11-09 05:19:17,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:17,450 INFO L471 AbstractCegarLoop]: Abstraction has 5249 states and 6634 transitions. [2024-11-09 05:19:17,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:17,450 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 6634 transitions. [2024-11-09 05:19:17,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-09 05:19:17,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:17,456 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:19:17,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 05:19:17,457 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:17,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:17,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1452369226, now seen corresponding path program 1 times [2024-11-09 05:19:17,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:17,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18682133] [2024-11-09 05:19:17,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:17,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:17,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:17,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:17,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:17,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18682133] [2024-11-09 05:19:17,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18682133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:17,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:17,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 05:19:17,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525952880] [2024-11-09 05:19:17,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:17,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 05:19:17,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:17,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 05:19:17,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:19:17,898 INFO L87 Difference]: Start difference. First operand 5249 states and 6634 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:20,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:20,057 INFO L93 Difference]: Finished difference Result 8400 states and 10842 transitions. [2024-11-09 05:19:20,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 05:19:20,057 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-09 05:19:20,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:20,066 INFO L225 Difference]: With dead ends: 8400 [2024-11-09 05:19:20,066 INFO L226 Difference]: Without dead ends: 5969 [2024-11-09 05:19:20,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-09 05:19:20,070 INFO L432 NwaCegarLoop]: 610 mSDtfsCounter, 3365 mSDsluCounter, 2939 mSDsCounter, 0 mSdLazyCounter, 3279 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3365 SdHoareTripleChecker+Valid, 3549 SdHoareTripleChecker+Invalid, 3284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:20,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3365 Valid, 3549 Invalid, 3284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3279 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-09 05:19:20,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5969 states. [2024-11-09 05:19:20,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5969 to 5249. [2024-11-09 05:19:20,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 5247 states have (on average 1.2641509433962264) internal successors, (6633), 5248 states have internal predecessors, (6633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:20,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 6633 transitions. [2024-11-09 05:19:20,149 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 6633 transitions. Word has length 71 [2024-11-09 05:19:20,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:20,149 INFO L471 AbstractCegarLoop]: Abstraction has 5249 states and 6633 transitions. [2024-11-09 05:19:20,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:20,150 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 6633 transitions. [2024-11-09 05:19:20,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 05:19:20,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:20,155 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] [2024-11-09 05:19:20,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 05:19:20,156 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:20,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:20,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1101201042, now seen corresponding path program 1 times [2024-11-09 05:19:20,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:20,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379181124] [2024-11-09 05:19:20,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:20,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:20,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:20,247 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:20,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379181124] [2024-11-09 05:19:20,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379181124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:20,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:20,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:19:20,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148187812] [2024-11-09 05:19:20,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:20,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:19:20,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:20,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:19:20,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:19:20,250 INFO L87 Difference]: Start difference. First operand 5249 states and 6633 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:20,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:20,397 INFO L93 Difference]: Finished difference Result 9040 states and 11823 transitions. [2024-11-09 05:19:20,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:19:20,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-11-09 05:19:20,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:20,410 INFO L225 Difference]: With dead ends: 9040 [2024-11-09 05:19:20,410 INFO L226 Difference]: Without dead ends: 6185 [2024-11-09 05:19:20,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:19:20,415 INFO L432 NwaCegarLoop]: 1179 mSDtfsCounter, 685 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:20,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 1664 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:19:20,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6185 states. [2024-11-09 05:19:20,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6185 to 6183. [2024-11-09 05:19:20,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6183 states, 6181 states have (on average 1.2816696327455104) internal successors, (7922), 6182 states have internal predecessors, (7922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:20,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6183 states to 6183 states and 7922 transitions. [2024-11-09 05:19:20,520 INFO L78 Accepts]: Start accepts. Automaton has 6183 states and 7922 transitions. Word has length 72 [2024-11-09 05:19:20,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:20,521 INFO L471 AbstractCegarLoop]: Abstraction has 6183 states and 7922 transitions. [2024-11-09 05:19:20,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:20,521 INFO L276 IsEmpty]: Start isEmpty. Operand 6183 states and 7922 transitions. [2024-11-09 05:19:20,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 05:19:20,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:20,526 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] [2024-11-09 05:19:20,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 05:19:20,527 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:20,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:20,527 INFO L85 PathProgramCache]: Analyzing trace with hash 457049012, now seen corresponding path program 1 times [2024-11-09 05:19:20,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:20,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637083678] [2024-11-09 05:19:20,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:20,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:21,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:21,148 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:21,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637083678] [2024-11-09 05:19:21,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637083678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:21,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:21,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 05:19:21,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739081140] [2024-11-09 05:19:21,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:21,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 05:19:21,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:21,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 05:19:21,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:19:21,151 INFO L87 Difference]: Start difference. First operand 6183 states and 7922 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:23,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:23,813 INFO L93 Difference]: Finished difference Result 10095 states and 13005 transitions. [2024-11-09 05:19:23,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:19:23,813 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-11-09 05:19:23,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:23,823 INFO L225 Difference]: With dead ends: 10095 [2024-11-09 05:19:23,823 INFO L226 Difference]: Without dead ends: 8038 [2024-11-09 05:19:23,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-09 05:19:23,828 INFO L432 NwaCegarLoop]: 742 mSDtfsCounter, 3301 mSDsluCounter, 3371 mSDsCounter, 0 mSdLazyCounter, 3483 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3301 SdHoareTripleChecker+Valid, 4113 SdHoareTripleChecker+Invalid, 3504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:23,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3301 Valid, 4113 Invalid, 3504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 3483 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-09 05:19:23,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8038 states. [2024-11-09 05:19:23,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8038 to 6183. [2024-11-09 05:19:23,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6183 states, 6181 states have (on average 1.2815078466267593) internal successors, (7921), 6182 states have internal predecessors, (7921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:23,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6183 states to 6183 states and 7921 transitions. [2024-11-09 05:19:23,957 INFO L78 Accepts]: Start accepts. Automaton has 6183 states and 7921 transitions. Word has length 72 [2024-11-09 05:19:23,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:23,958 INFO L471 AbstractCegarLoop]: Abstraction has 6183 states and 7921 transitions. [2024-11-09 05:19:23,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:23,958 INFO L276 IsEmpty]: Start isEmpty. Operand 6183 states and 7921 transitions. [2024-11-09 05:19:23,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 05:19:23,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:23,962 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] [2024-11-09 05:19:23,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 05:19:23,963 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:23,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:23,963 INFO L85 PathProgramCache]: Analyzing trace with hash -501754829, now seen corresponding path program 1 times [2024-11-09 05:19:23,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:23,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905288030] [2024-11-09 05:19:23,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:23,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:24,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:24,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:24,397 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:24,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905288030] [2024-11-09 05:19:24,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905288030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:24,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:24,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 05:19:24,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955162675] [2024-11-09 05:19:24,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:24,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 05:19:24,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:24,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 05:19:24,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:19:24,399 INFO L87 Difference]: Start difference. First operand 6183 states and 7921 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:26,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:26,407 INFO L93 Difference]: Finished difference Result 11025 states and 14266 transitions. [2024-11-09 05:19:26,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 05:19:26,407 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-11-09 05:19:26,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:26,415 INFO L225 Difference]: With dead ends: 11025 [2024-11-09 05:19:26,416 INFO L226 Difference]: Without dead ends: 9712 [2024-11-09 05:19:26,468 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-09 05:19:26,469 INFO L432 NwaCegarLoop]: 704 mSDtfsCounter, 3641 mSDsluCounter, 2533 mSDsCounter, 0 mSdLazyCounter, 3104 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3641 SdHoareTripleChecker+Valid, 3237 SdHoareTripleChecker+Invalid, 3131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:26,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3641 Valid, 3237 Invalid, 3131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3104 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 05:19:26,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9712 states. [2024-11-09 05:19:26,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9712 to 6183. [2024-11-09 05:19:26,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6183 states, 6181 states have (on average 1.2813460605080085) internal successors, (7920), 6182 states have internal predecessors, (7920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:26,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6183 states to 6183 states and 7920 transitions. [2024-11-09 05:19:26,577 INFO L78 Accepts]: Start accepts. Automaton has 6183 states and 7920 transitions. Word has length 72 [2024-11-09 05:19:26,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:26,577 INFO L471 AbstractCegarLoop]: Abstraction has 6183 states and 7920 transitions. [2024-11-09 05:19:26,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:26,577 INFO L276 IsEmpty]: Start isEmpty. Operand 6183 states and 7920 transitions. [2024-11-09 05:19:26,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 05:19:26,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:26,581 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] [2024-11-09 05:19:26,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 05:19:26,582 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:26,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:26,583 INFO L85 PathProgramCache]: Analyzing trace with hash 2081808715, now seen corresponding path program 1 times [2024-11-09 05:19:26,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:26,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752552949] [2024-11-09 05:19:26,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:26,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:26,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:26,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:26,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752552949] [2024-11-09 05:19:26,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752552949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:26,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:26,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 05:19:26,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476204480] [2024-11-09 05:19:26,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:26,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 05:19:26,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:26,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 05:19:26,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:19:26,991 INFO L87 Difference]: Start difference. First operand 6183 states and 7920 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:28,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:28,966 INFO L93 Difference]: Finished difference Result 7201 states and 9247 transitions. [2024-11-09 05:19:28,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:19:28,967 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-11-09 05:19:28,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:28,975 INFO L225 Difference]: With dead ends: 7201 [2024-11-09 05:19:28,975 INFO L226 Difference]: Without dead ends: 6350 [2024-11-09 05:19:28,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-11-09 05:19:28,979 INFO L432 NwaCegarLoop]: 625 mSDtfsCounter, 4246 mSDsluCounter, 1970 mSDsCounter, 0 mSdLazyCounter, 2292 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4246 SdHoareTripleChecker+Valid, 2595 SdHoareTripleChecker+Invalid, 2308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:28,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4246 Valid, 2595 Invalid, 2308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2292 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 05:19:28,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6350 states. [2024-11-09 05:19:29,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6350 to 6182. [2024-11-09 05:19:29,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6182 states, 6180 states have (on average 1.281229773462783) internal successors, (7918), 6181 states have internal predecessors, (7918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:29,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6182 states to 6182 states and 7918 transitions. [2024-11-09 05:19:29,089 INFO L78 Accepts]: Start accepts. Automaton has 6182 states and 7918 transitions. Word has length 72 [2024-11-09 05:19:29,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:29,090 INFO L471 AbstractCegarLoop]: Abstraction has 6182 states and 7918 transitions. [2024-11-09 05:19:29,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:29,090 INFO L276 IsEmpty]: Start isEmpty. Operand 6182 states and 7918 transitions. [2024-11-09 05:19:29,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-09 05:19:29,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:29,096 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] [2024-11-09 05:19:29,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 05:19:29,096 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:29,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:29,097 INFO L85 PathProgramCache]: Analyzing trace with hash -2102083951, now seen corresponding path program 1 times [2024-11-09 05:19:29,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:29,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073000891] [2024-11-09 05:19:29,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:29,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:29,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:29,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:29,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073000891] [2024-11-09 05:19:29,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073000891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:29,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:29,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 05:19:29,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338628223] [2024-11-09 05:19:29,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:29,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 05:19:29,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:29,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 05:19:29,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-09 05:19:29,943 INFO L87 Difference]: Start difference. First operand 6182 states and 7918 transitions. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 11 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:31,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:31,494 INFO L93 Difference]: Finished difference Result 10223 states and 13300 transitions. [2024-11-09 05:19:31,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:19:31,494 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 11 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-09 05:19:31,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:31,503 INFO L225 Difference]: With dead ends: 10223 [2024-11-09 05:19:31,503 INFO L226 Difference]: Without dead ends: 9371 [2024-11-09 05:19:31,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2024-11-09 05:19:31,506 INFO L432 NwaCegarLoop]: 1171 mSDtfsCounter, 4852 mSDsluCounter, 4625 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4852 SdHoareTripleChecker+Valid, 5796 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:31,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4852 Valid, 5796 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1022 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 05:19:31,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9371 states. [2024-11-09 05:19:31,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9371 to 6180. [2024-11-09 05:19:31,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6180 states, 6178 states have (on average 1.2811589511168664) internal successors, (7915), 6179 states have internal predecessors, (7915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:31,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6180 states to 6180 states and 7915 transitions. [2024-11-09 05:19:31,621 INFO L78 Accepts]: Start accepts. Automaton has 6180 states and 7915 transitions. Word has length 73 [2024-11-09 05:19:31,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:31,622 INFO L471 AbstractCegarLoop]: Abstraction has 6180 states and 7915 transitions. [2024-11-09 05:19:31,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 11 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:31,622 INFO L276 IsEmpty]: Start isEmpty. Operand 6180 states and 7915 transitions. [2024-11-09 05:19:31,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-09 05:19:31,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:31,627 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] [2024-11-09 05:19:31,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 05:19:31,627 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:31,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:31,628 INFO L85 PathProgramCache]: Analyzing trace with hash -285849865, now seen corresponding path program 1 times [2024-11-09 05:19:31,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:31,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641179303] [2024-11-09 05:19:31,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:31,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:31,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:31,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:31,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:31,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641179303] [2024-11-09 05:19:31,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641179303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:31,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:31,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:19:31,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551967735] [2024-11-09 05:19:31,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:31,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:19:31,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:31,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:19:31,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:19:31,734 INFO L87 Difference]: Start difference. First operand 6180 states and 7915 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:31,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:31,833 INFO L93 Difference]: Finished difference Result 11098 states and 14630 transitions. [2024-11-09 05:19:31,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:19:31,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-09 05:19:31,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:31,839 INFO L225 Difference]: With dead ends: 11098 [2024-11-09 05:19:31,839 INFO L226 Difference]: Without dead ends: 7080 [2024-11-09 05:19:31,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:19:31,843 INFO L432 NwaCegarLoop]: 1134 mSDtfsCounter, 633 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:31,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 1651 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:19:31,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7080 states. [2024-11-09 05:19:31,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7080 to 5644. [2024-11-09 05:19:31,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5644 states, 5642 states have (on average 1.2904998227578872) internal successors, (7281), 5643 states have internal predecessors, (7281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:31,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5644 states to 5644 states and 7281 transitions. [2024-11-09 05:19:31,915 INFO L78 Accepts]: Start accepts. Automaton has 5644 states and 7281 transitions. Word has length 73 [2024-11-09 05:19:31,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:31,915 INFO L471 AbstractCegarLoop]: Abstraction has 5644 states and 7281 transitions. [2024-11-09 05:19:31,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:31,915 INFO L276 IsEmpty]: Start isEmpty. Operand 5644 states and 7281 transitions. [2024-11-09 05:19:31,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-09 05:19:31,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:31,919 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] [2024-11-09 05:19:31,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 05:19:31,920 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:31,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:31,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1153775987, now seen corresponding path program 1 times [2024-11-09 05:19:31,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:31,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585136327] [2024-11-09 05:19:31,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:31,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:32,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:32,012 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:32,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585136327] [2024-11-09 05:19:32,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585136327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:32,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:32,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:19:32,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151972946] [2024-11-09 05:19:32,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:32,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:19:32,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:32,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:19:32,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:19:32,014 INFO L87 Difference]: Start difference. First operand 5644 states and 7281 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:32,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:32,156 INFO L93 Difference]: Finished difference Result 13534 states and 17737 transitions. [2024-11-09 05:19:32,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:19:32,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-09 05:19:32,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:32,167 INFO L225 Difference]: With dead ends: 13534 [2024-11-09 05:19:32,168 INFO L226 Difference]: Without dead ends: 9374 [2024-11-09 05:19:32,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:19:32,173 INFO L432 NwaCegarLoop]: 1203 mSDtfsCounter, 679 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 2139 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:32,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [679 Valid, 2139 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:19:32,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9374 states. [2024-11-09 05:19:32,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9374 to 9372. [2024-11-09 05:19:32,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9372 states, 9370 states have (on average 1.286872998932764) internal successors, (12058), 9371 states have internal predecessors, (12058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:32,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9372 states to 9372 states and 12058 transitions. [2024-11-09 05:19:32,290 INFO L78 Accepts]: Start accepts. Automaton has 9372 states and 12058 transitions. Word has length 73 [2024-11-09 05:19:32,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:32,291 INFO L471 AbstractCegarLoop]: Abstraction has 9372 states and 12058 transitions. [2024-11-09 05:19:32,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:32,292 INFO L276 IsEmpty]: Start isEmpty. Operand 9372 states and 12058 transitions. [2024-11-09 05:19:32,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-09 05:19:32,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:32,298 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] [2024-11-09 05:19:32,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 05:19:32,298 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:32,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:32,299 INFO L85 PathProgramCache]: Analyzing trace with hash 771614239, now seen corresponding path program 1 times [2024-11-09 05:19:32,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:32,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813700301] [2024-11-09 05:19:32,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:32,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:32,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:32,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:32,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:32,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813700301] [2024-11-09 05:19:32,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813700301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:32,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:32,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 05:19:32,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117037080] [2024-11-09 05:19:32,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:32,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:19:32,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:32,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:19:32,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:19:32,493 INFO L87 Difference]: Start difference. First operand 9372 states and 12058 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:32,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:32,771 INFO L93 Difference]: Finished difference Result 20208 states and 26443 transitions. [2024-11-09 05:19:32,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:19:32,771 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-11-09 05:19:32,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:32,782 INFO L225 Difference]: With dead ends: 20208 [2024-11-09 05:19:32,782 INFO L226 Difference]: Without dead ends: 12967 [2024-11-09 05:19:32,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:19:32,788 INFO L432 NwaCegarLoop]: 1083 mSDtfsCounter, 2145 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2145 SdHoareTripleChecker+Valid, 1737 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:32,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2145 Valid, 1737 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:19:32,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12967 states. [2024-11-09 05:19:32,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12967 to 11456. [2024-11-09 05:19:32,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11456 states, 11454 states have (on average 1.28889470927187) internal successors, (14763), 11455 states have internal predecessors, (14763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:32,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11456 states to 11456 states and 14763 transitions. [2024-11-09 05:19:32,900 INFO L78 Accepts]: Start accepts. Automaton has 11456 states and 14763 transitions. Word has length 73 [2024-11-09 05:19:32,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:32,900 INFO L471 AbstractCegarLoop]: Abstraction has 11456 states and 14763 transitions. [2024-11-09 05:19:32,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:32,901 INFO L276 IsEmpty]: Start isEmpty. Operand 11456 states and 14763 transitions. [2024-11-09 05:19:32,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 05:19:32,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:32,905 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:19:32,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-09 05:19:32,905 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:32,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:32,906 INFO L85 PathProgramCache]: Analyzing trace with hash -571162426, now seen corresponding path program 1 times [2024-11-09 05:19:32,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:32,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586266135] [2024-11-09 05:19:32,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:32,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:32,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:32,986 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:32,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586266135] [2024-11-09 05:19:32,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586266135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:32,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:32,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:19:32,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182316835] [2024-11-09 05:19:32,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:32,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:19:32,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:32,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:19:32,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:19:32,988 INFO L87 Difference]: Start difference. First operand 11456 states and 14763 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:33,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:33,179 INFO L93 Difference]: Finished difference Result 22085 states and 28629 transitions. [2024-11-09 05:19:33,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:19:33,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-11-09 05:19:33,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:33,187 INFO L225 Difference]: With dead ends: 22085 [2024-11-09 05:19:33,187 INFO L226 Difference]: Without dead ends: 12016 [2024-11-09 05:19:33,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:19:33,192 INFO L432 NwaCegarLoop]: 1030 mSDtfsCounter, 982 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 1395 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:33,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [982 Valid, 1395 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:19:33,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12016 states. [2024-11-09 05:19:33,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12016 to 10482. [2024-11-09 05:19:33,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10482 states, 10480 states have (on average 1.2926526717557252) internal successors, (13547), 10481 states have internal predecessors, (13547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:33,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10482 states to 10482 states and 13547 transitions. [2024-11-09 05:19:33,290 INFO L78 Accepts]: Start accepts. Automaton has 10482 states and 13547 transitions. Word has length 74 [2024-11-09 05:19:33,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:33,290 INFO L471 AbstractCegarLoop]: Abstraction has 10482 states and 13547 transitions. [2024-11-09 05:19:33,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:33,290 INFO L276 IsEmpty]: Start isEmpty. Operand 10482 states and 13547 transitions. [2024-11-09 05:19:33,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 05:19:33,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:33,293 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] [2024-11-09 05:19:33,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 05:19:33,294 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:33,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:33,294 INFO L85 PathProgramCache]: Analyzing trace with hash -312693235, now seen corresponding path program 1 times [2024-11-09 05:19:33,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:33,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440654704] [2024-11-09 05:19:33,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:33,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:33,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:33,691 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:33,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440654704] [2024-11-09 05:19:33,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440654704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:33,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:33,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 05:19:33,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85425231] [2024-11-09 05:19:33,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:33,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 05:19:33,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:33,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 05:19:33,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:19:33,694 INFO L87 Difference]: Start difference. First operand 10482 states and 13547 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:35,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:35,518 INFO L93 Difference]: Finished difference Result 12992 states and 16648 transitions. [2024-11-09 05:19:35,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 05:19:35,519 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-11-09 05:19:35,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:35,529 INFO L225 Difference]: With dead ends: 12992 [2024-11-09 05:19:35,529 INFO L226 Difference]: Without dead ends: 12275 [2024-11-09 05:19:35,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-11-09 05:19:35,533 INFO L432 NwaCegarLoop]: 607 mSDtfsCounter, 2370 mSDsluCounter, 2542 mSDsCounter, 0 mSdLazyCounter, 2883 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2370 SdHoareTripleChecker+Valid, 3149 SdHoareTripleChecker+Invalid, 2904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:35,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2370 Valid, 3149 Invalid, 2904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2883 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 05:19:35,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12275 states. [2024-11-09 05:19:35,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12275 to 10482. [2024-11-09 05:19:35,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10482 states, 10480 states have (on average 1.292557251908397) internal successors, (13546), 10481 states have internal predecessors, (13546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:35,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10482 states to 10482 states and 13546 transitions. [2024-11-09 05:19:35,646 INFO L78 Accepts]: Start accepts. Automaton has 10482 states and 13546 transitions. Word has length 74 [2024-11-09 05:19:35,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:35,647 INFO L471 AbstractCegarLoop]: Abstraction has 10482 states and 13546 transitions. [2024-11-09 05:19:35,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:35,647 INFO L276 IsEmpty]: Start isEmpty. Operand 10482 states and 13546 transitions. [2024-11-09 05:19:35,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 05:19:35,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:35,650 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] [2024-11-09 05:19:35,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 05:19:35,650 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:35,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:35,651 INFO L85 PathProgramCache]: Analyzing trace with hash 4590360, now seen corresponding path program 1 times [2024-11-09 05:19:35,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:35,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30664681] [2024-11-09 05:19:35,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:35,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:35,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:36,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:36,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:36,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30664681] [2024-11-09 05:19:36,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30664681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:36,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:36,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 05:19:36,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739791283] [2024-11-09 05:19:36,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:36,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 05:19:36,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:36,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 05:19:36,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:19:36,022 INFO L87 Difference]: Start difference. First operand 10482 states and 13546 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:37,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:37,694 INFO L93 Difference]: Finished difference Result 12930 states and 16538 transitions. [2024-11-09 05:19:37,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:19:37,695 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-09 05:19:37,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:37,706 INFO L225 Difference]: With dead ends: 12930 [2024-11-09 05:19:37,706 INFO L226 Difference]: Without dead ends: 12253 [2024-11-09 05:19:37,709 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-11-09 05:19:37,710 INFO L432 NwaCegarLoop]: 557 mSDtfsCounter, 3865 mSDsluCounter, 1755 mSDsCounter, 0 mSdLazyCounter, 2128 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3865 SdHoareTripleChecker+Valid, 2312 SdHoareTripleChecker+Invalid, 2144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:37,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3865 Valid, 2312 Invalid, 2144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2128 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 05:19:37,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12253 states. [2024-11-09 05:19:37,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12253 to 10482. [2024-11-09 05:19:37,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10482 states, 10480 states have (on average 1.2924618320610688) internal successors, (13545), 10481 states have internal predecessors, (13545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:37,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10482 states to 10482 states and 13545 transitions. [2024-11-09 05:19:37,880 INFO L78 Accepts]: Start accepts. Automaton has 10482 states and 13545 transitions. Word has length 75 [2024-11-09 05:19:37,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:37,880 INFO L471 AbstractCegarLoop]: Abstraction has 10482 states and 13545 transitions. [2024-11-09 05:19:37,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:37,881 INFO L276 IsEmpty]: Start isEmpty. Operand 10482 states and 13545 transitions. [2024-11-09 05:19:37,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 05:19:37,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:37,884 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] [2024-11-09 05:19:37,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-09 05:19:37,884 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:37,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:37,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1159060167, now seen corresponding path program 1 times [2024-11-09 05:19:37,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:37,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033644238] [2024-11-09 05:19:37,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:37,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:37,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:38,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:38,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:38,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033644238] [2024-11-09 05:19:38,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033644238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:38,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:38,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 05:19:38,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650878185] [2024-11-09 05:19:38,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:38,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 05:19:38,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:38,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 05:19:38,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:19:38,375 INFO L87 Difference]: Start difference. First operand 10482 states and 13545 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:40,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:40,261 INFO L93 Difference]: Finished difference Result 16008 states and 20527 transitions. [2024-11-09 05:19:40,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 05:19:40,261 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-09 05:19:40,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:40,276 INFO L225 Difference]: With dead ends: 16008 [2024-11-09 05:19:40,276 INFO L226 Difference]: Without dead ends: 15320 [2024-11-09 05:19:40,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-09 05:19:40,281 INFO L432 NwaCegarLoop]: 631 mSDtfsCounter, 3194 mSDsluCounter, 2263 mSDsCounter, 0 mSdLazyCounter, 2601 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3194 SdHoareTripleChecker+Valid, 2894 SdHoareTripleChecker+Invalid, 2617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:40,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3194 Valid, 2894 Invalid, 2617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2601 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 05:19:40,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15320 states. [2024-11-09 05:19:40,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15320 to 10482. [2024-11-09 05:19:40,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10482 states, 10480 states have (on average 1.2923664122137404) internal successors, (13544), 10481 states have internal predecessors, (13544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:40,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10482 states to 10482 states and 13544 transitions. [2024-11-09 05:19:40,421 INFO L78 Accepts]: Start accepts. Automaton has 10482 states and 13544 transitions. Word has length 75 [2024-11-09 05:19:40,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:40,422 INFO L471 AbstractCegarLoop]: Abstraction has 10482 states and 13544 transitions. [2024-11-09 05:19:40,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:40,422 INFO L276 IsEmpty]: Start isEmpty. Operand 10482 states and 13544 transitions. [2024-11-09 05:19:40,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 05:19:40,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:40,424 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] [2024-11-09 05:19:40,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-09 05:19:40,424 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:40,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:40,425 INFO L85 PathProgramCache]: Analyzing trace with hash 484371982, now seen corresponding path program 1 times [2024-11-09 05:19:40,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:40,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160899499] [2024-11-09 05:19:40,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:40,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:40,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:40,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:40,850 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:40,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160899499] [2024-11-09 05:19:40,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160899499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:40,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:40,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 05:19:40,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557849560] [2024-11-09 05:19:40,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:40,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 05:19:40,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:40,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 05:19:40,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:19:40,854 INFO L87 Difference]: Start difference. First operand 10482 states and 13544 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:42,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:42,444 INFO L93 Difference]: Finished difference Result 12930 states and 16536 transitions. [2024-11-09 05:19:42,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:19:42,445 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-09 05:19:42,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:42,453 INFO L225 Difference]: With dead ends: 12930 [2024-11-09 05:19:42,453 INFO L226 Difference]: Without dead ends: 12253 [2024-11-09 05:19:42,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-11-09 05:19:42,457 INFO L432 NwaCegarLoop]: 568 mSDtfsCounter, 3822 mSDsluCounter, 1787 mSDsCounter, 0 mSdLazyCounter, 2144 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3822 SdHoareTripleChecker+Valid, 2355 SdHoareTripleChecker+Invalid, 2160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:42,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3822 Valid, 2355 Invalid, 2160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2144 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 05:19:42,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12253 states. [2024-11-09 05:19:42,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12253 to 10482. [2024-11-09 05:19:42,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10482 states, 10480 states have (on average 1.2922709923664122) internal successors, (13543), 10481 states have internal predecessors, (13543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:42,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10482 states to 10482 states and 13543 transitions. [2024-11-09 05:19:42,579 INFO L78 Accepts]: Start accepts. Automaton has 10482 states and 13543 transitions. Word has length 75 [2024-11-09 05:19:42,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:42,580 INFO L471 AbstractCegarLoop]: Abstraction has 10482 states and 13543 transitions. [2024-11-09 05:19:42,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:42,580 INFO L276 IsEmpty]: Start isEmpty. Operand 10482 states and 13543 transitions. [2024-11-09 05:19:42,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 05:19:42,583 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:42,583 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] [2024-11-09 05:19:42,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-09 05:19:42,583 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:42,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:42,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1269088861, now seen corresponding path program 1 times [2024-11-09 05:19:42,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:42,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732124924] [2024-11-09 05:19:42,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:42,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:42,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:42,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:42,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732124924] [2024-11-09 05:19:42,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732124924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:42,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:42,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 05:19:42,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759822028] [2024-11-09 05:19:42,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:42,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 05:19:42,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:42,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 05:19:42,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:19:42,927 INFO L87 Difference]: Start difference. First operand 10482 states and 13543 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:44,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:44,395 INFO L93 Difference]: Finished difference Result 16008 states and 20524 transitions. [2024-11-09 05:19:44,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:19:44,395 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-09 05:19:44,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:44,407 INFO L225 Difference]: With dead ends: 16008 [2024-11-09 05:19:44,408 INFO L226 Difference]: Without dead ends: 15320 [2024-11-09 05:19:44,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-11-09 05:19:44,413 INFO L432 NwaCegarLoop]: 620 mSDtfsCounter, 2184 mSDsluCounter, 2036 mSDsCounter, 0 mSdLazyCounter, 2409 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2184 SdHoareTripleChecker+Valid, 2656 SdHoareTripleChecker+Invalid, 2425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:44,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2184 Valid, 2656 Invalid, 2425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2409 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 05:19:44,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15320 states. [2024-11-09 05:19:44,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15320 to 10482. [2024-11-09 05:19:44,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10482 states, 10480 states have (on average 1.292175572519084) internal successors, (13542), 10481 states have internal predecessors, (13542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:44,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10482 states to 10482 states and 13542 transitions. [2024-11-09 05:19:44,537 INFO L78 Accepts]: Start accepts. Automaton has 10482 states and 13542 transitions. Word has length 75 [2024-11-09 05:19:44,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:44,538 INFO L471 AbstractCegarLoop]: Abstraction has 10482 states and 13542 transitions. [2024-11-09 05:19:44,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:44,538 INFO L276 IsEmpty]: Start isEmpty. Operand 10482 states and 13542 transitions. [2024-11-09 05:19:44,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 05:19:44,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:44,540 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] [2024-11-09 05:19:44,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-09 05:19:44,540 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:44,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:44,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1308758756, now seen corresponding path program 1 times [2024-11-09 05:19:44,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:44,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996370539] [2024-11-09 05:19:44,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:44,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:45,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:45,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:45,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996370539] [2024-11-09 05:19:45,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996370539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:45,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:45,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 05:19:45,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116563972] [2024-11-09 05:19:45,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:45,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:19:45,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:45,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:19:45,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-09 05:19:45,063 INFO L87 Difference]: Start difference. First operand 10482 states and 13542 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:47,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:47,623 INFO L93 Difference]: Finished difference Result 25003 states and 32526 transitions. [2024-11-09 05:19:47,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 05:19:47,623 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-09 05:19:47,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:47,651 INFO L225 Difference]: With dead ends: 25003 [2024-11-09 05:19:47,651 INFO L226 Difference]: Without dead ends: 24323 [2024-11-09 05:19:47,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=218, Invalid=594, Unknown=0, NotChecked=0, Total=812 [2024-11-09 05:19:47,659 INFO L432 NwaCegarLoop]: 589 mSDtfsCounter, 7298 mSDsluCounter, 2428 mSDsCounter, 0 mSdLazyCounter, 2899 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7298 SdHoareTripleChecker+Valid, 3017 SdHoareTripleChecker+Invalid, 3138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 2899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:47,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7298 Valid, 3017 Invalid, 3138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 2899 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 05:19:47,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24323 states. [2024-11-09 05:19:47,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24323 to 10487. [2024-11-09 05:19:47,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10487 states, 10485 states have (on average 1.2920362422508345) internal successors, (13547), 10486 states have internal predecessors, (13547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:47,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10487 states to 10487 states and 13547 transitions. [2024-11-09 05:19:47,834 INFO L78 Accepts]: Start accepts. Automaton has 10487 states and 13547 transitions. Word has length 75 [2024-11-09 05:19:47,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:47,835 INFO L471 AbstractCegarLoop]: Abstraction has 10487 states and 13547 transitions. [2024-11-09 05:19:47,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:47,835 INFO L276 IsEmpty]: Start isEmpty. Operand 10487 states and 13547 transitions. [2024-11-09 05:19:47,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 05:19:47,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:47,837 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] [2024-11-09 05:19:47,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-09 05:19:47,837 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:47,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:47,837 INFO L85 PathProgramCache]: Analyzing trace with hash -939101477, now seen corresponding path program 1 times [2024-11-09 05:19:47,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:47,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126940750] [2024-11-09 05:19:47,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:47,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:48,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:48,020 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:48,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126940750] [2024-11-09 05:19:48,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126940750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:48,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:48,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:19:48,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890211361] [2024-11-09 05:19:48,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:48,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:19:48,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:48,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:19:48,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:19:48,023 INFO L87 Difference]: Start difference. First operand 10487 states and 13547 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:48,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:48,230 INFO L93 Difference]: Finished difference Result 24979 states and 32629 transitions. [2024-11-09 05:19:48,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:19:48,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-11-09 05:19:48,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:48,246 INFO L225 Difference]: With dead ends: 24979 [2024-11-09 05:19:48,246 INFO L226 Difference]: Without dead ends: 15969 [2024-11-09 05:19:48,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:19:48,255 INFO L432 NwaCegarLoop]: 1044 mSDtfsCounter, 549 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 1510 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:48,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 1510 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:19:48,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15969 states. [2024-11-09 05:19:48,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15969 to 14907. [2024-11-09 05:19:48,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14907 states, 14905 states have (on average 1.2859443139885944) internal successors, (19167), 14906 states have internal predecessors, (19167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:48,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14907 states to 14907 states and 19167 transitions. [2024-11-09 05:19:48,450 INFO L78 Accepts]: Start accepts. Automaton has 14907 states and 19167 transitions. Word has length 75 [2024-11-09 05:19:48,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:48,450 INFO L471 AbstractCegarLoop]: Abstraction has 14907 states and 19167 transitions. [2024-11-09 05:19:48,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:48,450 INFO L276 IsEmpty]: Start isEmpty. Operand 14907 states and 19167 transitions. [2024-11-09 05:19:48,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 05:19:48,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:48,452 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] [2024-11-09 05:19:48,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-09 05:19:48,453 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:48,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:48,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1494038393, now seen corresponding path program 1 times [2024-11-09 05:19:48,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:48,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652483798] [2024-11-09 05:19:48,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:48,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:49,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:49,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:49,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652483798] [2024-11-09 05:19:49,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652483798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:49,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:49,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 05:19:49,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486965191] [2024-11-09 05:19:49,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:49,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 05:19:49,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:49,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 05:19:49,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-09 05:19:49,200 INFO L87 Difference]: Start difference. First operand 14907 states and 19167 transitions. Second operand has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:50,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:50,417 INFO L93 Difference]: Finished difference Result 24250 states and 31026 transitions. [2024-11-09 05:19:50,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:19:50,418 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-09 05:19:50,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:50,440 INFO L225 Difference]: With dead ends: 24250 [2024-11-09 05:19:50,440 INFO L226 Difference]: Without dead ends: 23235 [2024-11-09 05:19:50,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-09 05:19:50,446 INFO L432 NwaCegarLoop]: 997 mSDtfsCounter, 4835 mSDsluCounter, 3883 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4835 SdHoareTripleChecker+Valid, 4880 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:50,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4835 Valid, 4880 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:19:50,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23235 states. [2024-11-09 05:19:50,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23235 to 14898. [2024-11-09 05:19:50,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14898 states, 14896 states have (on average 1.2859156820622986) internal successors, (19155), 14897 states have internal predecessors, (19155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:50,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14898 states to 14898 states and 19155 transitions. [2024-11-09 05:19:50,642 INFO L78 Accepts]: Start accepts. Automaton has 14898 states and 19155 transitions. Word has length 76 [2024-11-09 05:19:50,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:50,643 INFO L471 AbstractCegarLoop]: Abstraction has 14898 states and 19155 transitions. [2024-11-09 05:19:50,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:50,643 INFO L276 IsEmpty]: Start isEmpty. Operand 14898 states and 19155 transitions. [2024-11-09 05:19:50,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 05:19:50,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:50,645 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] [2024-11-09 05:19:50,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-09 05:19:50,645 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:50,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:50,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1206330705, now seen corresponding path program 1 times [2024-11-09 05:19:50,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:50,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146354076] [2024-11-09 05:19:50,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:50,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:50,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:51,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:51,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:51,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146354076] [2024-11-09 05:19:51,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146354076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:51,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:51,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 05:19:51,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232129449] [2024-11-09 05:19:51,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:51,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:19:51,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:51,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:19:51,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-09 05:19:51,513 INFO L87 Difference]: Start difference. First operand 14898 states and 19155 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:53,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:53,172 INFO L93 Difference]: Finished difference Result 26771 states and 34181 transitions. [2024-11-09 05:19:53,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 05:19:53,173 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-09 05:19:53,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:53,193 INFO L225 Difference]: With dead ends: 26771 [2024-11-09 05:19:53,194 INFO L226 Difference]: Without dead ends: 25704 [2024-11-09 05:19:53,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2024-11-09 05:19:53,201 INFO L432 NwaCegarLoop]: 936 mSDtfsCounter, 6269 mSDsluCounter, 4403 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6269 SdHoareTripleChecker+Valid, 5339 SdHoareTripleChecker+Invalid, 880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:53,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6269 Valid, 5339 Invalid, 880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 05:19:53,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25704 states. [2024-11-09 05:19:53,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25704 to 14836. [2024-11-09 05:19:53,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14836 states, 14835 states have (on average 1.2860802157061004) internal successors, (19079), 14835 states have internal predecessors, (19079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:53,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14836 states to 14836 states and 19079 transitions. [2024-11-09 05:19:53,378 INFO L78 Accepts]: Start accepts. Automaton has 14836 states and 19079 transitions. Word has length 76 [2024-11-09 05:19:53,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:53,379 INFO L471 AbstractCegarLoop]: Abstraction has 14836 states and 19079 transitions. [2024-11-09 05:19:53,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:53,379 INFO L276 IsEmpty]: Start isEmpty. Operand 14836 states and 19079 transitions. [2024-11-09 05:19:53,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-09 05:19:53,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:53,381 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:19:53,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-09 05:19:53,381 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:53,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:53,382 INFO L85 PathProgramCache]: Analyzing trace with hash -2065395584, now seen corresponding path program 1 times [2024-11-09 05:19:53,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:53,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048428796] [2024-11-09 05:19:53,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:53,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:53,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:54,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:54,176 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:54,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048428796] [2024-11-09 05:19:54,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048428796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:54,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:54,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 05:19:54,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929015968] [2024-11-09 05:19:54,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:54,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:19:54,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:54,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:19:54,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-09 05:19:54,179 INFO L87 Difference]: Start difference. First operand 14836 states and 19079 transitions. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:55,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:55,606 INFO L93 Difference]: Finished difference Result 35481 states and 45421 transitions. [2024-11-09 05:19:55,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 05:19:55,606 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-09 05:19:55,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:55,638 INFO L225 Difference]: With dead ends: 35481 [2024-11-09 05:19:55,638 INFO L226 Difference]: Without dead ends: 34475 [2024-11-09 05:19:55,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2024-11-09 05:19:55,647 INFO L432 NwaCegarLoop]: 861 mSDtfsCounter, 5979 mSDsluCounter, 4107 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5979 SdHoareTripleChecker+Valid, 4968 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:55,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5979 Valid, 4968 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 846 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:19:55,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34475 states. [2024-11-09 05:19:55,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34475 to 14835. [2024-11-09 05:19:55,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14835 states, 14834 states have (on average 1.286032088445463) internal successors, (19077), 14834 states have internal predecessors, (19077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:55,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14835 states to 14835 states and 19077 transitions. [2024-11-09 05:19:55,873 INFO L78 Accepts]: Start accepts. Automaton has 14835 states and 19077 transitions. Word has length 77 [2024-11-09 05:19:55,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:55,873 INFO L471 AbstractCegarLoop]: Abstraction has 14835 states and 19077 transitions. [2024-11-09 05:19:55,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:55,874 INFO L276 IsEmpty]: Start isEmpty. Operand 14835 states and 19077 transitions. [2024-11-09 05:19:55,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 05:19:55,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:55,877 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:19:55,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-09 05:19:55,877 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:55,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:55,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1712478197, now seen corresponding path program 1 times [2024-11-09 05:19:55,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:55,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983064517] [2024-11-09 05:19:55,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:55,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:55,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:56,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:56,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:56,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983064517] [2024-11-09 05:19:56,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983064517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:56,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:56,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 05:19:56,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003436427] [2024-11-09 05:19:56,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:56,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 05:19:56,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:56,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 05:19:56,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-09 05:19:56,804 INFO L87 Difference]: Start difference. First operand 14835 states and 19077 transitions. Second operand has 14 states, 14 states have (on average 5.571428571428571) internal successors, (78), 13 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:58,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:58,840 INFO L93 Difference]: Finished difference Result 29480 states and 37647 transitions. [2024-11-09 05:19:58,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 05:19:58,840 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.571428571428571) internal successors, (78), 13 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-09 05:19:58,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:58,868 INFO L225 Difference]: With dead ends: 29480 [2024-11-09 05:19:58,868 INFO L226 Difference]: Without dead ends: 28455 [2024-11-09 05:19:58,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=180, Invalid=576, Unknown=0, NotChecked=0, Total=756 [2024-11-09 05:19:58,876 INFO L432 NwaCegarLoop]: 980 mSDtfsCounter, 6502 mSDsluCounter, 6544 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6502 SdHoareTripleChecker+Valid, 7524 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:58,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6502 Valid, 7524 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 05:19:58,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28455 states. [2024-11-09 05:19:59,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28455 to 14813. [2024-11-09 05:19:59,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14813 states, 14812 states have (on average 1.2860518498514717) internal successors, (19049), 14812 states have internal predecessors, (19049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:59,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14813 states to 14813 states and 19049 transitions. [2024-11-09 05:19:59,093 INFO L78 Accepts]: Start accepts. Automaton has 14813 states and 19049 transitions. Word has length 78 [2024-11-09 05:19:59,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:59,093 INFO L471 AbstractCegarLoop]: Abstraction has 14813 states and 19049 transitions. [2024-11-09 05:19:59,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.571428571428571) internal successors, (78), 13 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:59,093 INFO L276 IsEmpty]: Start isEmpty. Operand 14813 states and 19049 transitions. [2024-11-09 05:19:59,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 05:19:59,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:59,096 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] [2024-11-09 05:19:59,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-09 05:19:59,096 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:59,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:59,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1357306291, now seen corresponding path program 1 times [2024-11-09 05:19:59,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:59,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301251828] [2024-11-09 05:19:59,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:59,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:59,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:59,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:59,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301251828] [2024-11-09 05:19:59,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301251828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:59,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:59,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:19:59,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118347265] [2024-11-09 05:19:59,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:59,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:19:59,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:59,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:19:59,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:19:59,272 INFO L87 Difference]: Start difference. First operand 14813 states and 19049 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:59,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:59,502 INFO L93 Difference]: Finished difference Result 35313 states and 45843 transitions. [2024-11-09 05:19:59,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:19:59,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-09 05:19:59,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:59,525 INFO L225 Difference]: With dead ends: 35313 [2024-11-09 05:19:59,525 INFO L226 Difference]: Without dead ends: 22443 [2024-11-09 05:19:59,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:19:59,535 INFO L432 NwaCegarLoop]: 921 mSDtfsCounter, 349 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1461 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:59,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 1461 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:19:59,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22443 states. [2024-11-09 05:19:59,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22443 to 20926. [2024-11-09 05:19:59,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20926 states, 20925 states have (on average 1.2779450418160097) internal successors, (26741), 20925 states have internal predecessors, (26741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:59,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20926 states to 20926 states and 26741 transitions. [2024-11-09 05:19:59,776 INFO L78 Accepts]: Start accepts. Automaton has 20926 states and 26741 transitions. Word has length 80 [2024-11-09 05:19:59,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:59,776 INFO L471 AbstractCegarLoop]: Abstraction has 20926 states and 26741 transitions. [2024-11-09 05:19:59,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:19:59,776 INFO L276 IsEmpty]: Start isEmpty. Operand 20926 states and 26741 transitions. [2024-11-09 05:19:59,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-09 05:19:59,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:59,779 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] [2024-11-09 05:19:59,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-09 05:19:59,779 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:19:59,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:59,779 INFO L85 PathProgramCache]: Analyzing trace with hash -384189238, now seen corresponding path program 1 times [2024-11-09 05:19:59,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:59,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993777702] [2024-11-09 05:19:59,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:59,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:59,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:00,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:20:00,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:20:00,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993777702] [2024-11-09 05:20:00,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993777702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:20:00,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:20:00,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 05:20:00,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846576078] [2024-11-09 05:20:00,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:20:00,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 05:20:00,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:20:00,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 05:20:00,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:20:00,254 INFO L87 Difference]: Start difference. First operand 20926 states and 26741 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:01,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:01,576 INFO L93 Difference]: Finished difference Result 33721 states and 42896 transitions. [2024-11-09 05:20:01,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:20:01,576 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-11-09 05:20:01,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:01,598 INFO L225 Difference]: With dead ends: 33721 [2024-11-09 05:20:01,598 INFO L226 Difference]: Without dead ends: 23568 [2024-11-09 05:20:01,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-11-09 05:20:01,606 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 3476 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 1841 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3476 SdHoareTripleChecker+Valid, 1963 SdHoareTripleChecker+Invalid, 1857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:01,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3476 Valid, 1963 Invalid, 1857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1841 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 05:20:01,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23568 states. [2024-11-09 05:20:01,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23568 to 20903. [2024-11-09 05:20:01,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20903 states, 20902 states have (on average 1.2781552004592862) internal successors, (26716), 20902 states have internal predecessors, (26716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:01,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20903 states to 20903 states and 26716 transitions. [2024-11-09 05:20:01,833 INFO L78 Accepts]: Start accepts. Automaton has 20903 states and 26716 transitions. Word has length 83 [2024-11-09 05:20:01,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:01,834 INFO L471 AbstractCegarLoop]: Abstraction has 20903 states and 26716 transitions. [2024-11-09 05:20:01,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:01,834 INFO L276 IsEmpty]: Start isEmpty. Operand 20903 states and 26716 transitions. [2024-11-09 05:20:01,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 05:20:01,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:01,836 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] [2024-11-09 05:20:01,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-09 05:20:01,837 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:20:01,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:01,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1335263333, now seen corresponding path program 1 times [2024-11-09 05:20:01,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:01,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375075365] [2024-11-09 05:20:01,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:01,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:01,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:20:01,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:20:01,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375075365] [2024-11-09 05:20:01,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375075365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:20:01,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:20:01,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:20:01,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245087016] [2024-11-09 05:20:01,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:20:01,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:20:01,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:20:01,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:20:01,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:20:01,976 INFO L87 Difference]: Start difference. First operand 20903 states and 26716 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:02,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:02,212 INFO L93 Difference]: Finished difference Result 49187 states and 63348 transitions. [2024-11-09 05:20:02,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:20:02,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-09 05:20:02,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:02,248 INFO L225 Difference]: With dead ends: 49187 [2024-11-09 05:20:02,248 INFO L226 Difference]: Without dead ends: 30619 [2024-11-09 05:20:02,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:20:02,263 INFO L432 NwaCegarLoop]: 953 mSDtfsCounter, 555 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 1319 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:02,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 1319 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:20:02,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30619 states. [2024-11-09 05:20:02,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30619 to 28745. [2024-11-09 05:20:02,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28745 states, 28744 states have (on average 1.2682646813247982) internal successors, (36455), 28744 states have internal predecessors, (36455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:02,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28745 states to 28745 states and 36455 transitions. [2024-11-09 05:20:02,584 INFO L78 Accepts]: Start accepts. Automaton has 28745 states and 36455 transitions. Word has length 84 [2024-11-09 05:20:02,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:02,584 INFO L471 AbstractCegarLoop]: Abstraction has 28745 states and 36455 transitions. [2024-11-09 05:20:02,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:02,584 INFO L276 IsEmpty]: Start isEmpty. Operand 28745 states and 36455 transitions. [2024-11-09 05:20:02,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 05:20:02,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:02,586 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] [2024-11-09 05:20:02,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-09 05:20:02,586 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:20:02,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:02,586 INFO L85 PathProgramCache]: Analyzing trace with hash 663713097, now seen corresponding path program 1 times [2024-11-09 05:20:02,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:02,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104168672] [2024-11-09 05:20:02,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:02,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:03,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:20:03,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:20:03,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104168672] [2024-11-09 05:20:03,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104168672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:20:03,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:20:03,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 05:20:03,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141833782] [2024-11-09 05:20:03,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:20:03,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:20:03,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:20:03,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:20:03,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:20:03,065 INFO L87 Difference]: Start difference. First operand 28745 states and 36455 transitions. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:03,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:03,720 INFO L93 Difference]: Finished difference Result 56210 states and 71230 transitions. [2024-11-09 05:20:03,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 05:20:03,721 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-09 05:20:03,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:03,769 INFO L225 Difference]: With dead ends: 56210 [2024-11-09 05:20:03,769 INFO L226 Difference]: Without dead ends: 56208 [2024-11-09 05:20:03,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2024-11-09 05:20:03,781 INFO L432 NwaCegarLoop]: 894 mSDtfsCounter, 3623 mSDsluCounter, 3891 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3623 SdHoareTripleChecker+Valid, 4785 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:03,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3623 Valid, 4785 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:20:03,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56208 states. [2024-11-09 05:20:04,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56208 to 31190. [2024-11-09 05:20:04,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31190 states, 31189 states have (on average 1.2656064638173714) internal successors, (39473), 31189 states have internal predecessors, (39473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:04,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31190 states to 31190 states and 39473 transitions. [2024-11-09 05:20:04,235 INFO L78 Accepts]: Start accepts. Automaton has 31190 states and 39473 transitions. Word has length 84 [2024-11-09 05:20:04,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:04,235 INFO L471 AbstractCegarLoop]: Abstraction has 31190 states and 39473 transitions. [2024-11-09 05:20:04,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:04,236 INFO L276 IsEmpty]: Start isEmpty. Operand 31190 states and 39473 transitions. [2024-11-09 05:20:04,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 05:20:04,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:04,239 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] [2024-11-09 05:20:04,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-09 05:20:04,239 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:20:04,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:04,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1193011237, now seen corresponding path program 1 times [2024-11-09 05:20:04,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:04,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884678395] [2024-11-09 05:20:04,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:04,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:04,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:04,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:20:04,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:20:04,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884678395] [2024-11-09 05:20:04,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884678395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:20:04,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:20:04,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 05:20:04,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384424083] [2024-11-09 05:20:04,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:20:04,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:20:04,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:20:04,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:20:04,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:20:04,723 INFO L87 Difference]: Start difference. First operand 31190 states and 39473 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:05,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:05,206 INFO L93 Difference]: Finished difference Result 56774 states and 71872 transitions. [2024-11-09 05:20:05,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 05:20:05,207 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-09 05:20:05,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:05,257 INFO L225 Difference]: With dead ends: 56774 [2024-11-09 05:20:05,257 INFO L226 Difference]: Without dead ends: 56772 [2024-11-09 05:20:05,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2024-11-09 05:20:05,267 INFO L432 NwaCegarLoop]: 912 mSDtfsCounter, 2811 mSDsluCounter, 3832 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2811 SdHoareTripleChecker+Valid, 4744 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:05,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2811 Valid, 4744 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:20:05,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56772 states. [2024-11-09 05:20:05,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56772 to 32411. [2024-11-09 05:20:05,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32411 states, 32410 states have (on average 1.2638691761801912) internal successors, (40962), 32410 states have internal predecessors, (40962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:05,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32411 states to 32411 states and 40962 transitions. [2024-11-09 05:20:05,649 INFO L78 Accepts]: Start accepts. Automaton has 32411 states and 40962 transitions. Word has length 90 [2024-11-09 05:20:05,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:05,649 INFO L471 AbstractCegarLoop]: Abstraction has 32411 states and 40962 transitions. [2024-11-09 05:20:05,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:05,649 INFO L276 IsEmpty]: Start isEmpty. Operand 32411 states and 40962 transitions. [2024-11-09 05:20:05,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-09 05:20:05,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:05,652 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] [2024-11-09 05:20:05,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-09 05:20:05,653 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:20:05,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:05,653 INFO L85 PathProgramCache]: Analyzing trace with hash 2057200909, now seen corresponding path program 1 times [2024-11-09 05:20:05,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:05,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596047460] [2024-11-09 05:20:05,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:05,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:05,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:06,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:20:06,008 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:20:06,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596047460] [2024-11-09 05:20:06,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596047460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:20:06,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:20:06,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 05:20:06,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883174671] [2024-11-09 05:20:06,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:20:06,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:20:06,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:20:06,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:20:06,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:20:06,009 INFO L87 Difference]: Start difference. First operand 32411 states and 40962 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:06,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:06,672 INFO L93 Difference]: Finished difference Result 58319 states and 73783 transitions. [2024-11-09 05:20:06,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 05:20:06,673 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-09 05:20:06,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:06,722 INFO L225 Difference]: With dead ends: 58319 [2024-11-09 05:20:06,722 INFO L226 Difference]: Without dead ends: 58317 [2024-11-09 05:20:06,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2024-11-09 05:20:06,734 INFO L432 NwaCegarLoop]: 943 mSDtfsCounter, 2605 mSDsluCounter, 4674 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2605 SdHoareTripleChecker+Valid, 5617 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:06,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2605 Valid, 5617 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:20:06,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58317 states. [2024-11-09 05:20:07,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58317 to 33597. [2024-11-09 05:20:07,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33597 states, 33596 states have (on average 1.2621740683414693) internal successors, (42404), 33596 states have internal predecessors, (42404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:07,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33597 states to 33597 states and 42404 transitions. [2024-11-09 05:20:07,142 INFO L78 Accepts]: Start accepts. Automaton has 33597 states and 42404 transitions. Word has length 91 [2024-11-09 05:20:07,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:07,142 INFO L471 AbstractCegarLoop]: Abstraction has 33597 states and 42404 transitions. [2024-11-09 05:20:07,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:07,142 INFO L276 IsEmpty]: Start isEmpty. Operand 33597 states and 42404 transitions. [2024-11-09 05:20:07,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-09 05:20:07,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:07,145 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] [2024-11-09 05:20:07,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-09 05:20:07,145 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:20:07,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:07,145 INFO L85 PathProgramCache]: Analyzing trace with hash 341691282, now seen corresponding path program 1 times [2024-11-09 05:20:07,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:07,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460177680] [2024-11-09 05:20:07,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:07,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:07,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:20:07,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:20:07,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460177680] [2024-11-09 05:20:07,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460177680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:20:07,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:20:07,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 05:20:07,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113831] [2024-11-09 05:20:07,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:20:07,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:20:07,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:20:07,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:20:07,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:20:07,608 INFO L87 Difference]: Start difference. First operand 33597 states and 42404 transitions. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:08,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:08,270 INFO L93 Difference]: Finished difference Result 59519 states and 75291 transitions. [2024-11-09 05:20:08,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 05:20:08,271 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-11-09 05:20:08,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:08,323 INFO L225 Difference]: With dead ends: 59519 [2024-11-09 05:20:08,323 INFO L226 Difference]: Without dead ends: 59517 [2024-11-09 05:20:08,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2024-11-09 05:20:08,330 INFO L432 NwaCegarLoop]: 961 mSDtfsCounter, 2622 mSDsluCounter, 4103 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2622 SdHoareTripleChecker+Valid, 5064 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:08,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2622 Valid, 5064 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:20:08,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59517 states. [2024-11-09 05:20:08,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59517 to 34577. [2024-11-09 05:20:08,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34577 states, 34576 states have (on average 1.2611638130495142) internal successors, (43606), 34576 states have internal predecessors, (43606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:08,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34577 states to 34577 states and 43606 transitions. [2024-11-09 05:20:08,885 INFO L78 Accepts]: Start accepts. Automaton has 34577 states and 43606 transitions. Word has length 95 [2024-11-09 05:20:08,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:08,886 INFO L471 AbstractCegarLoop]: Abstraction has 34577 states and 43606 transitions. [2024-11-09 05:20:08,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:08,886 INFO L276 IsEmpty]: Start isEmpty. Operand 34577 states and 43606 transitions. [2024-11-09 05:20:08,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-09 05:20:08,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:08,891 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] [2024-11-09 05:20:08,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-09 05:20:08,891 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:20:08,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:08,892 INFO L85 PathProgramCache]: Analyzing trace with hash -547910106, now seen corresponding path program 1 times [2024-11-09 05:20:08,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:08,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758270818] [2024-11-09 05:20:08,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:08,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:09,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:20:09,249 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:20:09,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758270818] [2024-11-09 05:20:09,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758270818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:20:09,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:20:09,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 05:20:09,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634658666] [2024-11-09 05:20:09,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:20:09,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:20:09,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:20:09,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:20:09,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:20:09,250 INFO L87 Difference]: Start difference. First operand 34577 states and 43606 transitions. Second operand has 10 states, 10 states have (on average 9.6) internal successors, (96), 10 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:09,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:09,782 INFO L93 Difference]: Finished difference Result 57798 states and 73352 transitions. [2024-11-09 05:20:09,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 05:20:09,783 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 10 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-09 05:20:09,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:09,831 INFO L225 Difference]: With dead ends: 57798 [2024-11-09 05:20:09,831 INFO L226 Difference]: Without dead ends: 57796 [2024-11-09 05:20:09,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2024-11-09 05:20:09,844 INFO L432 NwaCegarLoop]: 973 mSDtfsCounter, 2699 mSDsluCounter, 4188 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2699 SdHoareTripleChecker+Valid, 5161 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:09,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2699 Valid, 5161 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:20:09,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57796 states. [2024-11-09 05:20:10,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57796 to 34463. [2024-11-09 05:20:10,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34463 states, 34462 states have (on average 1.2613603389240322) internal successors, (43469), 34462 states have internal predecessors, (43469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:10,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34463 states to 34463 states and 43469 transitions. [2024-11-09 05:20:10,337 INFO L78 Accepts]: Start accepts. Automaton has 34463 states and 43469 transitions. Word has length 96 [2024-11-09 05:20:10,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:10,338 INFO L471 AbstractCegarLoop]: Abstraction has 34463 states and 43469 transitions. [2024-11-09 05:20:10,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 10 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:10,338 INFO L276 IsEmpty]: Start isEmpty. Operand 34463 states and 43469 transitions. [2024-11-09 05:20:10,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-09 05:20:10,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:10,341 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] [2024-11-09 05:20:10,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-09 05:20:10,341 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:20:10,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:10,342 INFO L85 PathProgramCache]: Analyzing trace with hash -982406476, now seen corresponding path program 1 times [2024-11-09 05:20:10,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:10,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051889396] [2024-11-09 05:20:10,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:10,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:10,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:20:10,502 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:20:10,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051889396] [2024-11-09 05:20:10,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051889396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:20:10,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:20:10,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:20:10,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790128480] [2024-11-09 05:20:10,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:20:10,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:20:10,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:20:10,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:20:10,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:20:10,504 INFO L87 Difference]: Start difference. First operand 34463 states and 43469 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:10,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:10,726 INFO L93 Difference]: Finished difference Result 61359 states and 78031 transitions. [2024-11-09 05:20:10,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:20:10,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-09 05:20:10,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:10,770 INFO L225 Difference]: With dead ends: 61359 [2024-11-09 05:20:10,770 INFO L226 Difference]: Without dead ends: 47739 [2024-11-09 05:20:10,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:20:10,786 INFO L432 NwaCegarLoop]: 956 mSDtfsCounter, 577 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:10,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 1291 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:20:10,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47739 states. [2024-11-09 05:20:11,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47739 to 46063. [2024-11-09 05:20:11,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46063 states, 46062 states have (on average 1.2556771308236725) internal successors, (57839), 46062 states have internal predecessors, (57839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:11,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46063 states to 46063 states and 57839 transitions. [2024-11-09 05:20:11,187 INFO L78 Accepts]: Start accepts. Automaton has 46063 states and 57839 transitions. Word has length 96 [2024-11-09 05:20:11,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:11,187 INFO L471 AbstractCegarLoop]: Abstraction has 46063 states and 57839 transitions. [2024-11-09 05:20:11,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:11,187 INFO L276 IsEmpty]: Start isEmpty. Operand 46063 states and 57839 transitions. [2024-11-09 05:20:11,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 05:20:11,193 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:11,194 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:20:11,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-09 05:20:11,194 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:20:11,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:11,195 INFO L85 PathProgramCache]: Analyzing trace with hash 898842045, now seen corresponding path program 1 times [2024-11-09 05:20:11,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:11,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271596340] [2024-11-09 05:20:11,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:11,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:12,874 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:20:12,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:20:12,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271596340] [2024-11-09 05:20:12,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271596340] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:20:12,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550075053] [2024-11-09 05:20:12,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:12,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:20:12,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:20:12,879 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:20:12,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:20:13,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:13,390 INFO L255 TraceCheckSpWp]: Trace formula consists of 879 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 05:20:13,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:20:14,057 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 05:20:14,057 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:20:14,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550075053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:20:14,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:20:14,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [22] total 28 [2024-11-09 05:20:14,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781537874] [2024-11-09 05:20:14,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:20:14,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 05:20:14,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:20:14,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 05:20:14,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=668, Unknown=0, NotChecked=0, Total=756 [2024-11-09 05:20:14,064 INFO L87 Difference]: Start difference. First operand 46063 states and 57839 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:15,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:15,513 INFO L93 Difference]: Finished difference Result 72395 states and 90740 transitions. [2024-11-09 05:20:15,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 05:20:15,514 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2024-11-09 05:20:15,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:15,557 INFO L225 Difference]: With dead ends: 72395 [2024-11-09 05:20:15,558 INFO L226 Difference]: Without dead ends: 51328 [2024-11-09 05:20:15,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=119, Invalid=873, Unknown=0, NotChecked=0, Total=992 [2024-11-09 05:20:15,577 INFO L432 NwaCegarLoop]: 501 mSDtfsCounter, 3180 mSDsluCounter, 1594 mSDsCounter, 0 mSdLazyCounter, 2013 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3180 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 2022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:15,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3180 Valid, 2095 Invalid, 2022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 2013 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 05:20:15,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51328 states. [2024-11-09 05:20:15,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51328 to 46040. [2024-11-09 05:20:15,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46040 states, 46039 states have (on average 1.2557396989508895) internal successors, (57813), 46039 states have internal predecessors, (57813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:16,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46040 states to 46040 states and 57813 transitions. [2024-11-09 05:20:16,000 INFO L78 Accepts]: Start accepts. Automaton has 46040 states and 57813 transitions. Word has length 102 [2024-11-09 05:20:16,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:16,001 INFO L471 AbstractCegarLoop]: Abstraction has 46040 states and 57813 transitions. [2024-11-09 05:20:16,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:20:16,001 INFO L276 IsEmpty]: Start isEmpty. Operand 46040 states and 57813 transitions. [2024-11-09 05:20:16,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 05:20:16,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:16,004 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:20:16,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:20:16,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-09 05:20:16,205 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:20:16,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:16,205 INFO L85 PathProgramCache]: Analyzing trace with hash 520644776, now seen corresponding path program 1 times [2024-11-09 05:20:16,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:16,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636105047] [2024-11-09 05:20:16,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:16,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:16,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:17,903 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:20:17,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:20:17,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636105047] [2024-11-09 05:20:17,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636105047] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:20:17,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408730837] [2024-11-09 05:20:17,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:17,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:20:17,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:20:17,905 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:20:17,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:20:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:18,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 878 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-09 05:20:18,431 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:20:21,469 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:20:21,469 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:20:36,847 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:20:36,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408730837] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:20:36,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [830907347] [2024-11-09 05:20:36,876 INFO L159 IcfgInterpreter]: Started Sifa with 94 locations of interest [2024-11-09 05:20:36,876 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:20:36,881 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:20:36,888 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:20:36,889 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:22:11,558 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:23:08,861 WARN L286 SmtUtils]: Spent 5.20s on a formula simplification. DAG size of input: 458 DAG size of output: 452 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:23:14,632 WARN L286 SmtUtils]: Spent 5.36s on a formula simplification. DAG size of input: 456 DAG size of output: 450 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:23:20,398 WARN L286 SmtUtils]: Spent 5.36s on a formula simplification. DAG size of input: 457 DAG size of output: 448 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:23:26,158 WARN L286 SmtUtils]: Spent 5.34s on a formula simplification. DAG size of input: 460 DAG size of output: 451 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:24:47,871 WARN L286 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 506 DAG size of output: 478 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:24:53,292 WARN L286 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 504 DAG size of output: 480 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:24:58,725 WARN L286 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 507 DAG size of output: 483 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:25:04,253 WARN L286 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 509 DAG size of output: 485 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:25:09,751 WARN L286 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 509 DAG size of output: 485 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:25:15,332 WARN L286 SmtUtils]: Spent 5.21s on a formula simplification. DAG size of input: 512 DAG size of output: 488 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:25:20,865 WARN L286 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 509 DAG size of output: 485 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:25:26,534 WARN L286 SmtUtils]: Spent 5.24s on a formula simplification. DAG size of input: 512 DAG size of output: 488 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:25:32,421 WARN L286 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 509 DAG size of output: 485 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:25:38,185 WARN L286 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 512 DAG size of output: 488 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:25:43,854 WARN L286 SmtUtils]: Spent 5.23s on a formula simplification. DAG size of input: 509 DAG size of output: 485 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:25:49,593 WARN L286 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 512 DAG size of output: 488 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:25:55,755 WARN L286 SmtUtils]: Spent 5.23s on a formula simplification. DAG size of input: 510 DAG size of output: 486 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:26:01,372 WARN L286 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 508 DAG size of output: 484 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:26:06,936 WARN L286 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 510 DAG size of output: 486 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:26:12,426 WARN L286 SmtUtils]: Spent 5.04s on a formula simplification. DAG size of input: 511 DAG size of output: 487 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:26:18,153 WARN L286 SmtUtils]: Spent 5.11s on a formula simplification. DAG size of input: 509 DAG size of output: 485 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:26:23,813 WARN L286 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 511 DAG size of output: 487 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:26:29,550 WARN L286 SmtUtils]: Spent 5.23s on a formula simplification. DAG size of input: 511 DAG size of output: 487 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:26:36,837 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1606437#(and (or (and (<= 0 ~mode3~0) (= ~mode4~0 0) (<= ~mode2~0 1) (<= ~mode3~0 1) (= ~__return_7565~0 1) (<= ~mode1~0 1)) (and (<= 0 ~mode3~0) (<= ~mode2~0 1) (<= ~mode3~0 1) (= ~__return_7565~0 1) (= ~mode4~0 1) (<= ~mode1~0 1)) (and (= ~__return_7565~0 0) (<= 0 ~mode3~0) (<= ~mode2~0 1) (<= ~mode3~0 1) (= ~mode4~0 1) (<= ~mode1~0 1)) (and (= ~__return_7565~0 0) (<= 0 ~mode3~0) (= ~mode4~0 0) (<= ~mode2~0 1) (<= ~mode3~0 1) (<= ~mode1~0 1))) (exists ((|v_ULTIMATE.start_main_~assert__arg~12#1_18| Int)) (= (mod |v_ULTIMATE.start_main_~assert__arg~12#1_18| 256) 0)))' at error location [2024-11-09 05:26:36,837 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:26:36,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:26:36,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 22, 20] total 56 [2024-11-09 05:26:36,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491050583] [2024-11-09 05:26:36,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:26:36,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-11-09 05:26:36,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:26:36,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-11-09 05:26:36,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2066, Invalid=14446, Unknown=0, NotChecked=0, Total=16512 [2024-11-09 05:26:36,843 INFO L87 Difference]: Start difference. First operand 46040 states and 57813 transitions. Second operand has 56 states, 56 states have (on average 5.410714285714286) internal successors, (303), 56 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:28:08,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:28:08,225 INFO L93 Difference]: Finished difference Result 174116 states and 220724 transitions. [2024-11-09 05:28:08,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 231 states. [2024-11-09 05:28:08,226 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 5.410714285714286) internal successors, (303), 56 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2024-11-09 05:28:08,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:28:08,346 INFO L225 Difference]: With dead ends: 174116 [2024-11-09 05:28:08,346 INFO L226 Difference]: Without dead ends: 136167 [2024-11-09 05:28:08,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 193 SyntacticMatches, 3 SemanticMatches, 348 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 58277 ImplicationChecksByTransitivity, 343.9s TimeCoverageRelationStatistics Valid=14733, Invalid=107417, Unknown=0, NotChecked=0, Total=122150 [2024-11-09 05:28:08,373 INFO L432 NwaCegarLoop]: 481 mSDtfsCounter, 14784 mSDsluCounter, 9875 mSDsCounter, 0 mSdLazyCounter, 13631 mSolverCounterSat, 971 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14784 SdHoareTripleChecker+Valid, 10356 SdHoareTripleChecker+Invalid, 14602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 971 IncrementalHoareTripleChecker+Valid, 13631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:28:08,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14784 Valid, 10356 Invalid, 14602 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [971 Valid, 13631 Invalid, 0 Unknown, 0 Unchecked, 14.0s Time] [2024-11-09 05:28:08,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136167 states. [2024-11-09 05:28:09,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136167 to 75964. [2024-11-09 05:28:09,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75964 states, 75963 states have (on average 1.2482129457762332) internal successors, (94818), 75963 states have internal predecessors, (94818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:28:09,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75964 states to 75964 states and 94818 transitions. [2024-11-09 05:28:09,369 INFO L78 Accepts]: Start accepts. Automaton has 75964 states and 94818 transitions. Word has length 102 [2024-11-09 05:28:09,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:28:09,370 INFO L471 AbstractCegarLoop]: Abstraction has 75964 states and 94818 transitions. [2024-11-09 05:28:09,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 5.410714285714286) internal successors, (303), 56 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:28:09,370 INFO L276 IsEmpty]: Start isEmpty. Operand 75964 states and 94818 transitions. [2024-11-09 05:28:09,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 05:28:09,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:28:09,376 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:28:09,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:28:09,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:28:09,577 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2024-11-09 05:28:09,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:28:09,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1709652148, now seen corresponding path program 1 times [2024-11-09 05:28:09,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:28:09,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120511480] [2024-11-09 05:28:09,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:09,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:28:09,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:28:11,401 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:28:11,402 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:28:11,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120511480] [2024-11-09 05:28:11,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120511480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:28:11,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563081694] [2024-11-09 05:28:11,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:28:11,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:28:11,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:28:11,403 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:28:11,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef341499-0c1f-4bd6-9db4-7d71c85dcb20/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:28:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:28:11,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 882 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-09 05:28:11,906 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:28:14,450 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:28:14,450 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:28:28,860 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:28:28,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563081694] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:28:28,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1210522360] [2024-11-09 05:28:28,865 INFO L159 IcfgInterpreter]: Started Sifa with 95 locations of interest [2024-11-09 05:28:28,865 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:28:28,866 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:28:28,866 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:28:28,866 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:31:38,860 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:31:53,939 WARN L286 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 457 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:31:59,361 WARN L286 SmtUtils]: Spent 5.10s on a formula simplification that was a NOOP. DAG size: 456 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:32:04,720 WARN L286 SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 454 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:32:10,168 WARN L286 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 455 DAG size of output: 452 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:32:15,513 WARN L286 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 458 DAG size of output: 455 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)