./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5cd978-b945-4af2-8f27-08a51bf979ff/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5cd978-b945-4af2-8f27-08a51bf979ff/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_7f5cd978-b945-4af2-8f27-08a51bf979ff/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5cd978-b945-4af2-8f27-08a51bf979ff/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5cd978-b945-4af2-8f27-08a51bf979ff/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_7f5cd978-b945-4af2-8f27-08a51bf979ff/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 ac65b92526cdafd793de45207c8e0f67883c86dc6af3548ef3333097912e0ee4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:23:11,826 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:23:11,942 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5cd978-b945-4af2-8f27-08a51bf979ff/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:23:11,952 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:23:11,952 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:23:11,993 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:23:11,995 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:23:11,996 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:23:11,997 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:23:11,998 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:23:11,999 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:23:11,999 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:23:12,000 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:23:12,001 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:23:12,002 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:23:12,003 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:23:12,004 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:23:12,005 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:23:12,005 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:23:12,005 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:23:12,006 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:23:12,010 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:23:12,011 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:23:12,011 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:23:12,012 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:23:12,012 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:23:12,012 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:23:12,012 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:23:12,013 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:23:12,013 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:23:12,013 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:23:12,014 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:23:12,014 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:23:12,015 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:23:12,016 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:23:12,017 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:23:12,017 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:23:12,018 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:23:12,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:23:12,018 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:23:12,019 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:23:12,019 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:23:12,019 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:23:12,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:23:12,020 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:23:12,021 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:23:12,021 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:23:12,022 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_7f5cd978-b945-4af2-8f27-08a51bf979ff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5cd978-b945-4af2-8f27-08a51bf979ff/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac65b92526cdafd793de45207c8e0f67883c86dc6af3548ef3333097912e0ee4 [2024-11-09 06:23:12,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:23:12,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:23:12,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:23:12,404 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:23:12,405 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:23:12,406 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5cd978-b945-4af2-8f27-08a51bf979ff/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c Unable to find full path for "g++" [2024-11-09 06:23:14,847 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:23:15,398 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:23:15,400 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5cd978-b945-4af2-8f27-08a51bf979ff/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2024-11-09 06:23:15,453 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5cd978-b945-4af2-8f27-08a51bf979ff/bin/utaipan-verify-YMUCfTKeje/data/bf80d9e51/e6ca4a29f7ef4042b180ec6ea3808a80/FLAG797532f31 [2024-11-09 06:23:15,479 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5cd978-b945-4af2-8f27-08a51bf979ff/bin/utaipan-verify-YMUCfTKeje/data/bf80d9e51/e6ca4a29f7ef4042b180ec6ea3808a80 [2024-11-09 06:23:15,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:23:15,483 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:23:15,486 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:23:15,488 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:23:15,495 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:23:15,496 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:23:15" (1/1) ... [2024-11-09 06:23:15,498 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@683a47b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:15, skipping insertion in model container [2024-11-09 06:23:15,498 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:23:15" (1/1) ... [2024-11-09 06:23:15,719 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:23:16,287 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_7f5cd978-b945-4af2-8f27-08a51bf979ff/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13606,13619] [2024-11-09 06:23:16,338 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_7f5cd978-b945-4af2-8f27-08a51bf979ff/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19227,19240] [2024-11-09 06:23:16,357 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_7f5cd978-b945-4af2-8f27-08a51bf979ff/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20416,20429] [2024-11-09 06:23:16,396 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_7f5cd978-b945-4af2-8f27-08a51bf979ff/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22562,22575] [2024-11-09 06:23:16,446 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_7f5cd978-b945-4af2-8f27-08a51bf979ff/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25842,25855] [2024-11-09 06:23:16,495 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_7f5cd978-b945-4af2-8f27-08a51bf979ff/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32130,32143] [2024-11-09 06:23:17,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:23:17,379 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:23:17,515 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_7f5cd978-b945-4af2-8f27-08a51bf979ff/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13606,13619] [2024-11-09 06:23:17,536 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_7f5cd978-b945-4af2-8f27-08a51bf979ff/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19227,19240] [2024-11-09 06:23:17,544 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_7f5cd978-b945-4af2-8f27-08a51bf979ff/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20416,20429] [2024-11-09 06:23:17,556 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_7f5cd978-b945-4af2-8f27-08a51bf979ff/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22562,22575] [2024-11-09 06:23:17,582 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_7f5cd978-b945-4af2-8f27-08a51bf979ff/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25842,25855] [2024-11-09 06:23:17,612 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_7f5cd978-b945-4af2-8f27-08a51bf979ff/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32130,32143] [2024-11-09 06:23:18,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:23:18,257 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:23:18,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:18 WrapperNode [2024-11-09 06:23:18,259 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:23:18,260 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:23:18,260 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:23:18,261 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:23:18,271 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:18" (1/1) ... [2024-11-09 06:23:18,357 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:18" (1/1) ... [2024-11-09 06:23:18,629 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 9476 [2024-11-09 06:23:18,630 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:23:18,631 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:23:18,631 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:23:18,631 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:23:18,643 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:18" (1/1) ... [2024-11-09 06:23:18,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:18" (1/1) ... [2024-11-09 06:23:18,666 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:18" (1/1) ... [2024-11-09 06:23:18,666 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:18" (1/1) ... [2024-11-09 06:23:18,755 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:18" (1/1) ... [2024-11-09 06:23:18,807 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:18" (1/1) ... [2024-11-09 06:23:18,837 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:18" (1/1) ... [2024-11-09 06:23:18,863 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:18" (1/1) ... [2024-11-09 06:23:18,901 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:23:18,903 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:23:18,904 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:23:18,904 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:23:18,905 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:18" (1/1) ... [2024-11-09 06:23:18,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:23:18,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5cd978-b945-4af2-8f27-08a51bf979ff/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:23:18,946 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5cd978-b945-4af2-8f27-08a51bf979ff/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:23:18,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f5cd978-b945-4af2-8f27-08a51bf979ff/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:23:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:23:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:23:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:23:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:23:19,629 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:23:19,633 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:23:26,297 INFO L? ?]: Removed 1319 outVars from TransFormulas that were not future-live. [2024-11-09 06:23:26,297 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:23:26,931 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:23:26,934 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:23:26,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:23:26 BoogieIcfgContainer [2024-11-09 06:23:26,935 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:23:26,937 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:23:26,939 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:23:26,943 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:23:26,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:23:15" (1/3) ... [2024-11-09 06:23:26,945 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f374049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:23:26, skipping insertion in model container [2024-11-09 06:23:26,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:23:18" (2/3) ... [2024-11-09 06:23:26,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f374049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:23:26, skipping insertion in model container [2024-11-09 06:23:26,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:23:26" (3/3) ... [2024-11-09 06:23:26,949 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2024-11-09 06:23:26,972 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:23:26,972 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-09 06:23:27,129 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:23:27,138 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;@6f8f1742, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:23:27,139 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-09 06:23:27,151 INFO L276 IsEmpty]: Start isEmpty. Operand has 1698 states, 1691 states have (on average 1.801892371377883) internal successors, (3047), 1697 states have internal predecessors, (3047), 0 states have call successors, (0), 0 states 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 06:23:27,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 06:23:27,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:27,182 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 06:23:27,186 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:23:27,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:27,196 INFO L85 PathProgramCache]: Analyzing trace with hash -2058921044, now seen corresponding path program 1 times [2024-11-09 06:23:27,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:27,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52604330] [2024-11-09 06:23:27,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:27,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:27,909 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 06:23:27,913 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:27,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52604330] [2024-11-09 06:23:27,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52604330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:27,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:27,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:23:27,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209294463] [2024-11-09 06:23:27,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:27,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:23:27,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:27,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:23:27,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:23:27,977 INFO L87 Difference]: Start difference. First operand has 1698 states, 1691 states have (on average 1.801892371377883) internal successors, (3047), 1697 states have internal predecessors, (3047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 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 06:23:28,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:28,583 INFO L93 Difference]: Finished difference Result 2373 states and 4179 transitions. [2024-11-09 06:23:28,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:23:28,587 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 06:23:28,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:28,627 INFO L225 Difference]: With dead ends: 2373 [2024-11-09 06:23:28,628 INFO L226 Difference]: Without dead ends: 2222 [2024-11-09 06:23:28,635 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 06:23:28,642 INFO L432 NwaCegarLoop]: 3521 mSDtfsCounter, 1811 mSDsluCounter, 1915 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1811 SdHoareTripleChecker+Valid, 5436 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:28,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1811 Valid, 5436 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:23:28,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2024-11-09 06:23:28,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 2212. [2024-11-09 06:23:28,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2212 states, 2206 states have (on average 1.2892112420670898) internal successors, (2844), 2211 states have internal predecessors, (2844), 0 states have call successors, (0), 0 states 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 06:23:28,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2212 states to 2212 states and 2844 transitions. [2024-11-09 06:23:28,867 INFO L78 Accepts]: Start accepts. Automaton has 2212 states and 2844 transitions. Word has length 74 [2024-11-09 06:23:28,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:28,868 INFO L471 AbstractCegarLoop]: Abstraction has 2212 states and 2844 transitions. [2024-11-09 06:23:28,868 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 06:23:28,868 INFO L276 IsEmpty]: Start isEmpty. Operand 2212 states and 2844 transitions. [2024-11-09 06:23:28,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 06:23:28,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:28,877 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] [2024-11-09 06:23:28,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:23:28,878 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:23:28,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:28,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1495234726, now seen corresponding path program 1 times [2024-11-09 06:23:28,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:28,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064296893] [2024-11-09 06:23:28,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:28,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:29,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:23:29,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:29,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064296893] [2024-11-09 06:23:29,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064296893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:29,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:29,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:23:29,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453293298] [2024-11-09 06:23:29,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:29,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:23:29,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:29,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:23:29,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:23:29,219 INFO L87 Difference]: Start difference. First operand 2212 states and 2844 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 06:23:29,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:29,471 INFO L93 Difference]: Finished difference Result 2969 states and 3926 transitions. [2024-11-09 06:23:29,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:23:29,472 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 06:23:29,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:29,483 INFO L225 Difference]: With dead ends: 2969 [2024-11-09 06:23:29,484 INFO L226 Difference]: Without dead ends: 2602 [2024-11-09 06:23:29,487 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 06:23:29,490 INFO L432 NwaCegarLoop]: 2229 mSDtfsCounter, 1124 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 3553 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:29,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1124 Valid, 3553 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:23:29,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2024-11-09 06:23:29,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 2592. [2024-11-09 06:23:29,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2592 states, 2586 states have (on average 1.3093580819798918) internal successors, (3386), 2591 states have internal predecessors, (3386), 0 states have call successors, (0), 0 states 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 06:23:29,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2592 states to 2592 states and 3386 transitions. [2024-11-09 06:23:29,583 INFO L78 Accepts]: Start accepts. Automaton has 2592 states and 3386 transitions. Word has length 74 [2024-11-09 06:23:29,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:29,586 INFO L471 AbstractCegarLoop]: Abstraction has 2592 states and 3386 transitions. [2024-11-09 06:23:29,586 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 06:23:29,586 INFO L276 IsEmpty]: Start isEmpty. Operand 2592 states and 3386 transitions. [2024-11-09 06:23:29,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 06:23:29,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:29,597 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 06:23:29,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:23:29,598 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:23:29,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:29,600 INFO L85 PathProgramCache]: Analyzing trace with hash 209016782, now seen corresponding path program 1 times [2024-11-09 06:23:29,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:29,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288684647] [2024-11-09 06:23:29,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:29,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:29,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:30,027 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 06:23:30,028 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:30,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288684647] [2024-11-09 06:23:30,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288684647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:30,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:30,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:23:30,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572918508] [2024-11-09 06:23:30,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:30,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:23:30,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:30,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:23:30,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:23:30,037 INFO L87 Difference]: Start difference. First operand 2592 states and 3386 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 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 06:23:31,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:31,692 INFO L93 Difference]: Finished difference Result 4595 states and 6159 transitions. [2024-11-09 06:23:31,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:23:31,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 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 06:23:31,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:31,706 INFO L225 Difference]: With dead ends: 4595 [2024-11-09 06:23:31,706 INFO L226 Difference]: Without dead ends: 2604 [2024-11-09 06:23:31,710 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 06:23:31,712 INFO L432 NwaCegarLoop]: 942 mSDtfsCounter, 5327 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5327 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:31,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5327 Valid, 1113 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 06:23:31,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2604 states. [2024-11-09 06:23:31,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2604 to 2594. [2024-11-09 06:23:31,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2594 states, 2588 states have (on average 1.3504636785162287) internal successors, (3495), 2593 states have internal predecessors, (3495), 0 states have call successors, (0), 0 states 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 06:23:31,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2594 states to 2594 states and 3495 transitions. [2024-11-09 06:23:31,787 INFO L78 Accepts]: Start accepts. Automaton has 2594 states and 3495 transitions. Word has length 74 [2024-11-09 06:23:31,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:31,787 INFO L471 AbstractCegarLoop]: Abstraction has 2594 states and 3495 transitions. [2024-11-09 06:23:31,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 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 06:23:31,788 INFO L276 IsEmpty]: Start isEmpty. Operand 2594 states and 3495 transitions. [2024-11-09 06:23:31,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 06:23:31,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:31,795 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 06:23:31,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:23:31,796 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:23:31,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:31,798 INFO L85 PathProgramCache]: Analyzing trace with hash 2036024049, now seen corresponding path program 1 times [2024-11-09 06:23:31,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:31,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70860376] [2024-11-09 06:23:31,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:31,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:31,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:32,170 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 06:23:32,171 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:32,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70860376] [2024-11-09 06:23:32,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70860376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:32,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:32,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:23:32,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756918949] [2024-11-09 06:23:32,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:32,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:23:32,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:32,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:23:32,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:23:32,175 INFO L87 Difference]: Start difference. First operand 2594 states and 3495 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 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 06:23:33,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:33,492 INFO L93 Difference]: Finished difference Result 5284 states and 7272 transitions. [2024-11-09 06:23:33,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:23:33,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 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 06:23:33,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:33,505 INFO L225 Difference]: With dead ends: 5284 [2024-11-09 06:23:33,506 INFO L226 Difference]: Without dead ends: 3131 [2024-11-09 06:23:33,511 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 06:23:33,512 INFO L432 NwaCegarLoop]: 714 mSDtfsCounter, 4187 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4187 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:33,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4187 Valid, 882 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 06:23:33,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3131 states. [2024-11-09 06:23:33,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3131 to 3121. [2024-11-09 06:23:33,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3115 states have (on average 1.3775280898876405) internal successors, (4291), 3120 states have internal predecessors, (4291), 0 states have call successors, (0), 0 states 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 06:23:33,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 4291 transitions. [2024-11-09 06:23:33,633 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 4291 transitions. Word has length 75 [2024-11-09 06:23:33,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:33,634 INFO L471 AbstractCegarLoop]: Abstraction has 3121 states and 4291 transitions. [2024-11-09 06:23:33,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 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 06:23:33,634 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 4291 transitions. [2024-11-09 06:23:33,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 06:23:33,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:33,639 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 06:23:33,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:23:33,640 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:23:33,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:33,640 INFO L85 PathProgramCache]: Analyzing trace with hash -673249547, now seen corresponding path program 1 times [2024-11-09 06:23:33,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:33,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733094362] [2024-11-09 06:23:33,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:33,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:33,785 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 06:23:33,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:33,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733094362] [2024-11-09 06:23:33,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733094362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:33,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:33,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:23:33,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081516711] [2024-11-09 06:23:33,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:33,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:23:33,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:33,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:23:33,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:23:33,789 INFO L87 Difference]: Start difference. First operand 3121 states and 4291 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:23:33,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:33,939 INFO L93 Difference]: Finished difference Result 6531 states and 9108 transitions. [2024-11-09 06:23:33,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:23:33,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-09 06:23:33,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:33,958 INFO L225 Difference]: With dead ends: 6531 [2024-11-09 06:23:33,958 INFO L226 Difference]: Without dead ends: 4826 [2024-11-09 06:23:33,962 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 06:23:33,963 INFO L432 NwaCegarLoop]: 1647 mSDtfsCounter, 1035 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 2489 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:33,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1035 Valid, 2489 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:23:33,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4826 states. [2024-11-09 06:23:34,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4826 to 4816. [2024-11-09 06:23:34,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4816 states, 4810 states have (on average 1.376923076923077) internal successors, (6623), 4815 states have internal predecessors, (6623), 0 states have call successors, (0), 0 states 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 06:23:34,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4816 states to 4816 states and 6623 transitions. [2024-11-09 06:23:34,097 INFO L78 Accepts]: Start accepts. Automaton has 4816 states and 6623 transitions. Word has length 76 [2024-11-09 06:23:34,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:34,098 INFO L471 AbstractCegarLoop]: Abstraction has 4816 states and 6623 transitions. [2024-11-09 06:23:34,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:23:34,098 INFO L276 IsEmpty]: Start isEmpty. Operand 4816 states and 6623 transitions. [2024-11-09 06:23:34,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 06:23:34,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:34,106 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 06:23:34,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:23:34,106 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:23:34,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:34,107 INFO L85 PathProgramCache]: Analyzing trace with hash -560510585, now seen corresponding path program 1 times [2024-11-09 06:23:34,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:34,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200002605] [2024-11-09 06:23:34,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:34,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:34,263 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 06:23:34,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:34,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200002605] [2024-11-09 06:23:34,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200002605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:34,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:34,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:23:34,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575859026] [2024-11-09 06:23:34,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:34,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:23:34,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:34,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:23:34,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:23:34,267 INFO L87 Difference]: Start difference. First operand 4816 states and 6623 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:23:34,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:34,419 INFO L93 Difference]: Finished difference Result 10335 states and 14406 transitions. [2024-11-09 06:23:34,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:23:34,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-09 06:23:34,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:34,444 INFO L225 Difference]: With dead ends: 10335 [2024-11-09 06:23:34,444 INFO L226 Difference]: Without dead ends: 7474 [2024-11-09 06:23:34,449 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 06:23:34,450 INFO L432 NwaCegarLoop]: 1665 mSDtfsCounter, 1054 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 2503 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:34,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1054 Valid, 2503 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:23:34,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7474 states. [2024-11-09 06:23:34,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7474 to 7464. [2024-11-09 06:23:34,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7464 states, 7458 states have (on average 1.3765084473049074) internal successors, (10266), 7463 states have internal predecessors, (10266), 0 states have call successors, (0), 0 states 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 06:23:34,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7464 states to 7464 states and 10266 transitions. [2024-11-09 06:23:34,700 INFO L78 Accepts]: Start accepts. Automaton has 7464 states and 10266 transitions. Word has length 76 [2024-11-09 06:23:34,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:34,701 INFO L471 AbstractCegarLoop]: Abstraction has 7464 states and 10266 transitions. [2024-11-09 06:23:34,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:23:34,701 INFO L276 IsEmpty]: Start isEmpty. Operand 7464 states and 10266 transitions. [2024-11-09 06:23:34,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 06:23:34,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:34,710 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 06:23:34,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:23:34,711 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:23:34,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:34,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1192523870, now seen corresponding path program 1 times [2024-11-09 06:23:34,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:34,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980659645] [2024-11-09 06:23:34,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:34,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:34,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:34,844 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 06:23:34,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:34,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980659645] [2024-11-09 06:23:34,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980659645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:34,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:34,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:23:34,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546050387] [2024-11-09 06:23:34,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:34,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:23:34,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:34,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:23:34,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:23:34,848 INFO L87 Difference]: Start difference. First operand 7464 states and 10266 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:23:35,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:35,015 INFO L93 Difference]: Finished difference Result 17347 states and 24295 transitions. [2024-11-09 06:23:35,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:23:35,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-09 06:23:35,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:35,055 INFO L225 Difference]: With dead ends: 17347 [2024-11-09 06:23:35,055 INFO L226 Difference]: Without dead ends: 11666 [2024-11-09 06:23:35,063 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 06:23:35,064 INFO L432 NwaCegarLoop]: 1274 mSDtfsCounter, 659 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 2123 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:35,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 2123 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:23:35,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11666 states. [2024-11-09 06:23:35,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11666 to 11656. [2024-11-09 06:23:35,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11656 states, 11650 states have (on average 1.3851502145922747) internal successors, (16137), 11655 states have internal predecessors, (16137), 0 states have call successors, (0), 0 states 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 06:23:35,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11656 states to 11656 states and 16137 transitions. [2024-11-09 06:23:35,337 INFO L78 Accepts]: Start accepts. Automaton has 11656 states and 16137 transitions. Word has length 76 [2024-11-09 06:23:35,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:35,337 INFO L471 AbstractCegarLoop]: Abstraction has 11656 states and 16137 transitions. [2024-11-09 06:23:35,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:23:35,339 INFO L276 IsEmpty]: Start isEmpty. Operand 11656 states and 16137 transitions. [2024-11-09 06:23:35,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 06:23:35,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:35,351 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 06:23:35,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:23:35,352 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:23:35,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:35,353 INFO L85 PathProgramCache]: Analyzing trace with hash -533704172, now seen corresponding path program 1 times [2024-11-09 06:23:35,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:35,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180993860] [2024-11-09 06:23:35,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:35,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:35,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:35,672 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 06:23:35,673 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:35,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180993860] [2024-11-09 06:23:35,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180993860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:35,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:35,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:23:35,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329653415] [2024-11-09 06:23:35,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:35,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:23:35,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:35,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:23:35,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:23:35,677 INFO L87 Difference]: Start difference. First operand 11656 states and 16137 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 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 06:23:37,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:37,012 INFO L93 Difference]: Finished difference Result 28441 states and 39755 transitions. [2024-11-09 06:23:37,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:23:37,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 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 06:23:37,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:37,078 INFO L225 Difference]: With dead ends: 28441 [2024-11-09 06:23:37,078 INFO L226 Difference]: Without dead ends: 17750 [2024-11-09 06:23:37,094 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 06:23:37,096 INFO L432 NwaCegarLoop]: 595 mSDtfsCounter, 3595 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3595 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:37,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3595 Valid, 747 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 06:23:37,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17750 states. [2024-11-09 06:23:37,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17750 to 17740. [2024-11-09 06:23:37,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17740 states, 17734 states have (on average 1.3898725611819105) internal successors, (24648), 17739 states have internal predecessors, (24648), 0 states have call successors, (0), 0 states 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 06:23:37,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17740 states to 17740 states and 24648 transitions. [2024-11-09 06:23:37,509 INFO L78 Accepts]: Start accepts. Automaton has 17740 states and 24648 transitions. Word has length 76 [2024-11-09 06:23:37,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:37,509 INFO L471 AbstractCegarLoop]: Abstraction has 17740 states and 24648 transitions. [2024-11-09 06:23:37,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 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 06:23:37,510 INFO L276 IsEmpty]: Start isEmpty. Operand 17740 states and 24648 transitions. [2024-11-09 06:23:37,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-09 06:23:37,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:37,522 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 06:23:37,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 06:23:37,523 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:23:37,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:37,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1266054146, now seen corresponding path program 1 times [2024-11-09 06:23:37,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:37,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606594442] [2024-11-09 06:23:37,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:37,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:37,942 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 06:23:37,942 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:37,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606594442] [2024-11-09 06:23:37,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606594442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:37,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:37,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 06:23:37,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141258528] [2024-11-09 06:23:37,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:37,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:23:37,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:37,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:23:37,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:23:37,946 INFO L87 Difference]: Start difference. First operand 17740 states and 24648 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:23:39,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:39,553 INFO L93 Difference]: Finished difference Result 43251 states and 60683 transitions. [2024-11-09 06:23:39,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:23:39,555 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-09 06:23:39,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:39,640 INFO L225 Difference]: With dead ends: 43251 [2024-11-09 06:23:39,640 INFO L226 Difference]: Without dead ends: 37150 [2024-11-09 06:23:39,655 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:23:39,656 INFO L432 NwaCegarLoop]: 616 mSDtfsCounter, 4553 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4553 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:39,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4553 Valid, 1555 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1207 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 06:23:39,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37150 states. [2024-11-09 06:23:40,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37150 to 17788. [2024-11-09 06:23:40,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17788 states, 17782 states have (on average 1.3897199415138906) internal successors, (24712), 17787 states have internal predecessors, (24712), 0 states have call successors, (0), 0 states 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 06:23:40,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17788 states to 17788 states and 24712 transitions. [2024-11-09 06:23:40,170 INFO L78 Accepts]: Start accepts. Automaton has 17788 states and 24712 transitions. Word has length 77 [2024-11-09 06:23:40,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:40,172 INFO L471 AbstractCegarLoop]: Abstraction has 17788 states and 24712 transitions. [2024-11-09 06:23:40,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:23:40,172 INFO L276 IsEmpty]: Start isEmpty. Operand 17788 states and 24712 transitions. [2024-11-09 06:23:40,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-09 06:23:40,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:40,183 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 06:23:40,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 06:23:40,183 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:23:40,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:40,188 INFO L85 PathProgramCache]: Analyzing trace with hash 433382606, now seen corresponding path program 1 times [2024-11-09 06:23:40,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:40,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346312367] [2024-11-09 06:23:40,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:40,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:40,527 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 06:23:40,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:40,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346312367] [2024-11-09 06:23:40,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346312367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:40,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:40,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 06:23:40,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713978798] [2024-11-09 06:23:40,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:40,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:23:40,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:40,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:23:40,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:23:40,532 INFO L87 Difference]: Start difference. First operand 17788 states and 24712 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:23:42,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:42,096 INFO L93 Difference]: Finished difference Result 45135 states and 63304 transitions. [2024-11-09 06:23:42,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:23:42,097 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-09 06:23:42,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:42,164 INFO L225 Difference]: With dead ends: 45135 [2024-11-09 06:23:42,164 INFO L226 Difference]: Without dead ends: 38771 [2024-11-09 06:23:42,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:23:42,184 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 4493 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 1232 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4493 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 1232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:42,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4493 Valid, 1531 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 1232 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 06:23:42,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38771 states. [2024-11-09 06:23:42,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38771 to 17968. [2024-11-09 06:23:43,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17968 states, 17962 states have (on average 1.389154882529785) internal successors, (24952), 17967 states have internal predecessors, (24952), 0 states have call successors, (0), 0 states 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 06:23:43,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17968 states to 17968 states and 24952 transitions. [2024-11-09 06:23:43,058 INFO L78 Accepts]: Start accepts. Automaton has 17968 states and 24952 transitions. Word has length 77 [2024-11-09 06:23:43,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:43,059 INFO L471 AbstractCegarLoop]: Abstraction has 17968 states and 24952 transitions. [2024-11-09 06:23:43,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:23:43,060 INFO L276 IsEmpty]: Start isEmpty. Operand 17968 states and 24952 transitions. [2024-11-09 06:23:43,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-09 06:23:43,076 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:43,077 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 06:23:43,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 06:23:43,078 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:23:43,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:43,079 INFO L85 PathProgramCache]: Analyzing trace with hash -421429613, now seen corresponding path program 1 times [2024-11-09 06:23:43,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:43,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552108252] [2024-11-09 06:23:43,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:43,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:43,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:43,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:23:43,493 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:43,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552108252] [2024-11-09 06:23:43,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552108252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:43,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:43,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 06:23:43,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383714330] [2024-11-09 06:23:43,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:43,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:23:43,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:43,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:23:43,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:23:43,497 INFO L87 Difference]: Start difference. First operand 17968 states and 24952 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:23:45,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:45,134 INFO L93 Difference]: Finished difference Result 42183 states and 59077 transitions. [2024-11-09 06:23:45,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:23:45,135 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-09 06:23:45,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:45,201 INFO L225 Difference]: With dead ends: 42183 [2024-11-09 06:23:45,201 INFO L226 Difference]: Without dead ends: 36105 [2024-11-09 06:23:45,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:23:45,217 INFO L432 NwaCegarLoop]: 592 mSDtfsCounter, 4488 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4488 SdHoareTripleChecker+Valid, 1513 SdHoareTripleChecker+Invalid, 1387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:45,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4488 Valid, 1513 Invalid, 1387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1262 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 06:23:45,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36105 states. [2024-11-09 06:23:45,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36105 to 18268. [2024-11-09 06:23:45,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18268 states, 18262 states have (on average 1.388456905048735) internal successors, (25356), 18267 states have internal predecessors, (25356), 0 states have call successors, (0), 0 states 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 06:23:45,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18268 states to 18268 states and 25356 transitions. [2024-11-09 06:23:45,831 INFO L78 Accepts]: Start accepts. Automaton has 18268 states and 25356 transitions. Word has length 77 [2024-11-09 06:23:45,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:45,832 INFO L471 AbstractCegarLoop]: Abstraction has 18268 states and 25356 transitions. [2024-11-09 06:23:45,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:23:45,832 INFO L276 IsEmpty]: Start isEmpty. Operand 18268 states and 25356 transitions. [2024-11-09 06:23:45,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 06:23:45,848 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:45,848 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 06:23:45,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 06:23:45,848 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:23:45,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:45,849 INFO L85 PathProgramCache]: Analyzing trace with hash -527964228, now seen corresponding path program 1 times [2024-11-09 06:23:45,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:45,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326921105] [2024-11-09 06:23:45,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:45,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:46,557 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 06:23:46,557 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:46,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326921105] [2024-11-09 06:23:46,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326921105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:46,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:46,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:23:46,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340592952] [2024-11-09 06:23:46,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:46,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:23:46,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:46,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:23:46,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:23:46,564 INFO L87 Difference]: Start difference. First operand 18268 states and 25356 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 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 06:23:46,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:46,704 INFO L93 Difference]: Finished difference Result 18268 states and 25356 transitions. [2024-11-09 06:23:46,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:23:46,705 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 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 06:23:46,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:46,729 INFO L225 Difference]: With dead ends: 18268 [2024-11-09 06:23:46,730 INFO L226 Difference]: Without dead ends: 18266 [2024-11-09 06:23:46,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:23:46,736 INFO L432 NwaCegarLoop]: 1077 mSDtfsCounter, 0 mSDsluCounter, 2152 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3229 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:46,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3229 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:23:46,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18266 states. [2024-11-09 06:23:46,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18266 to 18266. [2024-11-09 06:23:47,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18266 states, 18261 states have (on average 1.3865067630469305) internal successors, (25319), 18265 states have internal predecessors, (25319), 0 states have call successors, (0), 0 states 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 06:23:47,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18266 states to 18266 states and 25319 transitions. [2024-11-09 06:23:47,047 INFO L78 Accepts]: Start accepts. Automaton has 18266 states and 25319 transitions. Word has length 78 [2024-11-09 06:23:47,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:47,048 INFO L471 AbstractCegarLoop]: Abstraction has 18266 states and 25319 transitions. [2024-11-09 06:23:47,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 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 06:23:47,048 INFO L276 IsEmpty]: Start isEmpty. Operand 18266 states and 25319 transitions. [2024-11-09 06:23:47,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 06:23:47,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:47,061 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 06:23:47,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 06:23:47,062 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:23:47,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:47,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1000233041, now seen corresponding path program 1 times [2024-11-09 06:23:47,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:47,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751497437] [2024-11-09 06:23:47,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:47,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:47,768 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 06:23:47,769 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:47,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751497437] [2024-11-09 06:23:47,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751497437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:47,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:47,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:23:47,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847827849] [2024-11-09 06:23:47,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:47,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:23:47,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:47,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:23:47,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:23:47,773 INFO L87 Difference]: Start difference. First operand 18266 states and 25319 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 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 06:23:47,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:47,915 INFO L93 Difference]: Finished difference Result 18266 states and 25319 transitions. [2024-11-09 06:23:47,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:23:47,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 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 06:23:47,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:47,941 INFO L225 Difference]: With dead ends: 18266 [2024-11-09 06:23:47,941 INFO L226 Difference]: Without dead ends: 18264 [2024-11-09 06:23:47,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:23:47,949 INFO L432 NwaCegarLoop]: 1075 mSDtfsCounter, 0 mSDsluCounter, 2148 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3223 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:47,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3223 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:23:47,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18264 states. [2024-11-09 06:23:48,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18264 to 18264. [2024-11-09 06:23:48,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18264 states, 18260 states have (on average 1.3845564074479737) internal successors, (25282), 18263 states have internal predecessors, (25282), 0 states have call successors, (0), 0 states 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 06:23:48,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18264 states to 18264 states and 25282 transitions. [2024-11-09 06:23:48,448 INFO L78 Accepts]: Start accepts. Automaton has 18264 states and 25282 transitions. Word has length 78 [2024-11-09 06:23:48,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:48,449 INFO L471 AbstractCegarLoop]: Abstraction has 18264 states and 25282 transitions. [2024-11-09 06:23:48,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 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 06:23:48,450 INFO L276 IsEmpty]: Start isEmpty. Operand 18264 states and 25282 transitions. [2024-11-09 06:23:48,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 06:23:48,460 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:48,460 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 06:23:48,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 06:23:48,461 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:23:48,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:48,461 INFO L85 PathProgramCache]: Analyzing trace with hash -559253753, now seen corresponding path program 1 times [2024-11-09 06:23:48,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:48,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053534185] [2024-11-09 06:23:48,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:48,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:48,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:48,662 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 06:23:48,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:48,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053534185] [2024-11-09 06:23:48,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053534185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:48,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:48,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:23:48,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332938346] [2024-11-09 06:23:48,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:48,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:23:48,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:48,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:23:48,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:23:48,665 INFO L87 Difference]: Start difference. First operand 18264 states and 25282 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 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 06:23:49,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:49,833 INFO L93 Difference]: Finished difference Result 47357 states and 65773 transitions. [2024-11-09 06:23:49,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:23:49,834 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 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 06:23:49,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:49,882 INFO L225 Difference]: With dead ends: 47357 [2024-11-09 06:23:49,883 INFO L226 Difference]: Without dead ends: 29896 [2024-11-09 06:23:49,905 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 06:23:49,908 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 3254 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3254 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:49,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3254 Valid, 671 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 06:23:49,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29896 states. [2024-11-09 06:23:50,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29896 to 29890. [2024-11-09 06:23:50,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29890 states, 29886 states have (on average 1.3784715251288229) internal successors, (41197), 29889 states have internal predecessors, (41197), 0 states have call successors, (0), 0 states 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 06:23:50,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29890 states to 29890 states and 41197 transitions. [2024-11-09 06:23:50,772 INFO L78 Accepts]: Start accepts. Automaton has 29890 states and 41197 transitions. Word has length 78 [2024-11-09 06:23:50,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:50,773 INFO L471 AbstractCegarLoop]: Abstraction has 29890 states and 41197 transitions. [2024-11-09 06:23:50,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 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 06:23:50,773 INFO L276 IsEmpty]: Start isEmpty. Operand 29890 states and 41197 transitions. [2024-11-09 06:23:50,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 06:23:50,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:50,790 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 06:23:50,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 06:23:50,794 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:23:50,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:50,795 INFO L85 PathProgramCache]: Analyzing trace with hash -337684182, now seen corresponding path program 1 times [2024-11-09 06:23:50,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:50,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75919297] [2024-11-09 06:23:50,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:50,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:51,183 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 06:23:51,184 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:51,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75919297] [2024-11-09 06:23:51,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75919297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:51,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:51,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:23:51,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904184882] [2024-11-09 06:23:51,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:51,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:23:51,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:51,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:23:51,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:23:51,187 INFO L87 Difference]: Start difference. First operand 29890 states and 41197 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 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 06:23:52,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:52,728 INFO L93 Difference]: Finished difference Result 82729 states and 114701 transitions. [2024-11-09 06:23:52,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:23:52,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 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 06:23:52,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:52,816 INFO L225 Difference]: With dead ends: 82729 [2024-11-09 06:23:52,816 INFO L226 Difference]: Without dead ends: 53709 [2024-11-09 06:23:52,835 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 06:23:52,836 INFO L432 NwaCegarLoop]: 663 mSDtfsCounter, 3459 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3459 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:52,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3459 Valid, 830 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 06:23:52,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53709 states. [2024-11-09 06:23:53,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53709 to 41410. [2024-11-09 06:23:53,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41410 states, 41406 states have (on average 1.3844370381104187) internal successors, (57324), 41409 states have internal predecessors, (57324), 0 states have call successors, (0), 0 states 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 06:23:53,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41410 states to 41410 states and 57324 transitions. [2024-11-09 06:23:53,697 INFO L78 Accepts]: Start accepts. Automaton has 41410 states and 57324 transitions. Word has length 78 [2024-11-09 06:23:53,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:53,697 INFO L471 AbstractCegarLoop]: Abstraction has 41410 states and 57324 transitions. [2024-11-09 06:23:53,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 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 06:23:53,698 INFO L276 IsEmpty]: Start isEmpty. Operand 41410 states and 57324 transitions. [2024-11-09 06:23:53,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-09 06:23:53,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:53,707 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:23:53,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 06:23:53,708 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:23:53,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:53,709 INFO L85 PathProgramCache]: Analyzing trace with hash -184549286, now seen corresponding path program 1 times [2024-11-09 06:23:53,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:53,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126483265] [2024-11-09 06:23:53,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:53,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:54,307 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 06:23:54,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:54,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126483265] [2024-11-09 06:23:54,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126483265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:54,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:54,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 06:23:54,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751611359] [2024-11-09 06:23:54,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:54,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:23:54,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:54,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:23:54,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:23:54,314 INFO L87 Difference]: Start difference. First operand 41410 states and 57324 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:23:56,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:23:56,727 INFO L93 Difference]: Finished difference Result 102711 states and 142484 transitions. [2024-11-09 06:23:56,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:23:56,728 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-09 06:23:56,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:23:56,891 INFO L225 Difference]: With dead ends: 102711 [2024-11-09 06:23:56,892 INFO L226 Difference]: Without dead ends: 85459 [2024-11-09 06:23:56,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:23:56,911 INFO L432 NwaCegarLoop]: 558 mSDtfsCounter, 4336 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4336 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:23:56,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4336 Valid, 1508 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 06:23:56,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85459 states. [2024-11-09 06:23:57,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85459 to 41917. [2024-11-09 06:23:57,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41917 states, 41913 states have (on average 1.3840574523417555) internal successors, (58010), 41916 states have internal predecessors, (58010), 0 states have call successors, (0), 0 states 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 06:23:58,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41917 states to 41917 states and 58010 transitions. [2024-11-09 06:23:58,064 INFO L78 Accepts]: Start accepts. Automaton has 41917 states and 58010 transitions. Word has length 79 [2024-11-09 06:23:58,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:23:58,065 INFO L471 AbstractCegarLoop]: Abstraction has 41917 states and 58010 transitions. [2024-11-09 06:23:58,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:23:58,065 INFO L276 IsEmpty]: Start isEmpty. Operand 41917 states and 58010 transitions. [2024-11-09 06:23:58,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-09 06:23:58,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:23:58,077 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] [2024-11-09 06:23:58,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 06:23:58,078 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:23:58,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:23:58,078 INFO L85 PathProgramCache]: Analyzing trace with hash -454273550, now seen corresponding path program 1 times [2024-11-09 06:23:58,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:23:58,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350356174] [2024-11-09 06:23:58,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:23:58,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:58,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:58,320 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 06:23:58,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:58,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350356174] [2024-11-09 06:23:58,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350356174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:58,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:58,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 06:23:58,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950683402] [2024-11-09 06:23:58,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:58,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:23:58,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:58,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:23:58,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:23:58,323 INFO L87 Difference]: Start difference. First operand 41917 states and 58010 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:24:00,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:24:00,044 INFO L93 Difference]: Finished difference Result 94133 states and 130281 transitions. [2024-11-09 06:24:00,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:24:00,044 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-09 06:24:00,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:24:00,149 INFO L225 Difference]: With dead ends: 94133 [2024-11-09 06:24:00,149 INFO L226 Difference]: Without dead ends: 75243 [2024-11-09 06:24:00,177 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:24:00,178 INFO L432 NwaCegarLoop]: 620 mSDtfsCounter, 4107 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 977 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4107 SdHoareTripleChecker+Valid, 1415 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:24:00,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4107 Valid, 1415 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 977 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 06:24:00,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75243 states. [2024-11-09 06:24:01,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75243 to 42001. [2024-11-09 06:24:01,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42001 states, 41997 states have (on average 1.3838607519584731) internal successors, (58118), 42000 states have internal predecessors, (58118), 0 states have call successors, (0), 0 states 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 06:24:01,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42001 states to 42001 states and 58118 transitions. [2024-11-09 06:24:01,387 INFO L78 Accepts]: Start accepts. Automaton has 42001 states and 58118 transitions. Word has length 79 [2024-11-09 06:24:01,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:24:01,388 INFO L471 AbstractCegarLoop]: Abstraction has 42001 states and 58118 transitions. [2024-11-09 06:24:01,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:24:01,388 INFO L276 IsEmpty]: Start isEmpty. Operand 42001 states and 58118 transitions. [2024-11-09 06:24:01,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 06:24:01,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:24:01,400 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 06:24:01,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 06:24:01,400 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:24:01,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:24:01,400 INFO L85 PathProgramCache]: Analyzing trace with hash -832358038, now seen corresponding path program 1 times [2024-11-09 06:24:01,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:24:01,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701543637] [2024-11-09 06:24:01,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:01,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:24:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:24:02,195 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 06:24:02,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:24:02,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701543637] [2024-11-09 06:24:02,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701543637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:24:02,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:24:02,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 06:24:02,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825499687] [2024-11-09 06:24:02,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:24:02,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:24:02,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:02,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:24:02,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:24:02,198 INFO L87 Difference]: Start difference. First operand 42001 states and 58118 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 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 06:24:04,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:24:04,508 INFO L93 Difference]: Finished difference Result 95270 states and 131846 transitions. [2024-11-09 06:24:04,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 06:24:04,509 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 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 06:24:04,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:24:04,582 INFO L225 Difference]: With dead ends: 95270 [2024-11-09 06:24:04,583 INFO L226 Difference]: Without dead ends: 61732 [2024-11-09 06:24:04,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:24:04,613 INFO L432 NwaCegarLoop]: 676 mSDtfsCounter, 2352 mSDsluCounter, 2166 mSDsCounter, 0 mSdLazyCounter, 2407 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2352 SdHoareTripleChecker+Valid, 2842 SdHoareTripleChecker+Invalid, 2435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:24:04,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2352 Valid, 2842 Invalid, 2435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2407 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-09 06:24:04,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61732 states. [2024-11-09 06:24:05,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61732 to 42001. [2024-11-09 06:24:05,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42001 states, 41997 states have (on average 1.3835750172631378) internal successors, (58106), 42000 states have internal predecessors, (58106), 0 states have call successors, (0), 0 states 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 06:24:05,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42001 states to 42001 states and 58106 transitions. [2024-11-09 06:24:05,426 INFO L78 Accepts]: Start accepts. Automaton has 42001 states and 58106 transitions. Word has length 80 [2024-11-09 06:24:05,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:24:05,427 INFO L471 AbstractCegarLoop]: Abstraction has 42001 states and 58106 transitions. [2024-11-09 06:24:05,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 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 06:24:05,427 INFO L276 IsEmpty]: Start isEmpty. Operand 42001 states and 58106 transitions. [2024-11-09 06:24:05,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 06:24:05,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:24:05,435 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 06:24:05,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 06:24:05,435 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:24:05,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:24:05,435 INFO L85 PathProgramCache]: Analyzing trace with hash 952801472, now seen corresponding path program 1 times [2024-11-09 06:24:05,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:24:05,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706954618] [2024-11-09 06:24:05,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:05,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:24:05,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:24:06,212 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 06:24:06,212 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:24:06,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706954618] [2024-11-09 06:24:06,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706954618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:24:06,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:24:06,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:24:06,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111018185] [2024-11-09 06:24:06,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:24:06,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:24:06,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:06,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:24:06,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:24:06,217 INFO L87 Difference]: Start difference. First operand 42001 states and 58106 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 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 06:24:06,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:24:06,486 INFO L93 Difference]: Finished difference Result 42001 states and 58106 transitions. [2024-11-09 06:24:06,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:24:06,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 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 06:24:06,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:24:06,568 INFO L225 Difference]: With dead ends: 42001 [2024-11-09 06:24:06,568 INFO L226 Difference]: Without dead ends: 41999 [2024-11-09 06:24:06,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:24:06,585 INFO L432 NwaCegarLoop]: 1023 mSDtfsCounter, 0 mSDsluCounter, 2044 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3067 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:24:06,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3067 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:24:06,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41999 states. [2024-11-09 06:24:07,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41999 to 41999. [2024-11-09 06:24:07,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41999 states, 41996 states have (on average 1.3822983141251548) internal successors, (58051), 41998 states have internal predecessors, (58051), 0 states have call successors, (0), 0 states 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 06:24:07,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41999 states to 41999 states and 58051 transitions. [2024-11-09 06:24:07,549 INFO L78 Accepts]: Start accepts. Automaton has 41999 states and 58051 transitions. Word has length 80 [2024-11-09 06:24:07,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:24:07,550 INFO L471 AbstractCegarLoop]: Abstraction has 41999 states and 58051 transitions. [2024-11-09 06:24:07,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 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 06:24:07,550 INFO L276 IsEmpty]: Start isEmpty. Operand 41999 states and 58051 transitions. [2024-11-09 06:24:07,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 06:24:07,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:24:07,559 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 06:24:07,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 06:24:07,560 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:24:07,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:24:07,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1443527492, now seen corresponding path program 1 times [2024-11-09 06:24:07,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:24:07,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423414168] [2024-11-09 06:24:07,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:07,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:24:07,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:24:07,969 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 06:24:07,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:24:07,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423414168] [2024-11-09 06:24:07,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423414168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:24:07,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:24:07,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:24:07,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387324666] [2024-11-09 06:24:07,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:24:07,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:24:07,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:07,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:24:07,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:24:07,972 INFO L87 Difference]: Start difference. First operand 41999 states and 58051 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 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 06:24:08,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:24:08,147 INFO L93 Difference]: Finished difference Result 41999 states and 58051 transitions. [2024-11-09 06:24:08,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:24:08,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 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 06:24:08,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:24:08,213 INFO L225 Difference]: With dead ends: 41999 [2024-11-09 06:24:08,213 INFO L226 Difference]: Without dead ends: 41997 [2024-11-09 06:24:08,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:24:08,228 INFO L432 NwaCegarLoop]: 1021 mSDtfsCounter, 0 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3061 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:24:08,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3061 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:24:08,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41997 states. [2024-11-09 06:24:08,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41997 to 41997. [2024-11-09 06:24:08,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41997 states, 41995 states have (on average 1.3810215501845458) internal successors, (57996), 41996 states have internal predecessors, (57996), 0 states have call successors, (0), 0 states 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 06:24:08,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41997 states to 41997 states and 57996 transitions. [2024-11-09 06:24:08,899 INFO L78 Accepts]: Start accepts. Automaton has 41997 states and 57996 transitions. Word has length 80 [2024-11-09 06:24:08,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:24:08,899 INFO L471 AbstractCegarLoop]: Abstraction has 41997 states and 57996 transitions. [2024-11-09 06:24:08,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 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 06:24:08,899 INFO L276 IsEmpty]: Start isEmpty. Operand 41997 states and 57996 transitions. [2024-11-09 06:24:08,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 06:24:08,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:24:08,909 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] [2024-11-09 06:24:08,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 06:24:08,909 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:24:08,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:24:08,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1832033401, now seen corresponding path program 1 times [2024-11-09 06:24:08,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:24:08,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138913514] [2024-11-09 06:24:08,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:08,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:24:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:24:10,288 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 06:24:10,289 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:24:10,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138913514] [2024-11-09 06:24:10,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138913514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:24:10,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:24:10,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 06:24:10,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143804225] [2024-11-09 06:24:10,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:24:10,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:24:10,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:10,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:24:10,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:24:10,292 INFO L87 Difference]: Start difference. First operand 41997 states and 57996 transitions. Second operand has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:24:12,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:24:12,031 INFO L93 Difference]: Finished difference Result 102601 states and 142585 transitions. [2024-11-09 06:24:12,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:24:12,032 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-09 06:24:12,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:24:12,116 INFO L225 Difference]: With dead ends: 102601 [2024-11-09 06:24:12,116 INFO L226 Difference]: Without dead ends: 68469 [2024-11-09 06:24:12,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2024-11-09 06:24:12,143 INFO L432 NwaCegarLoop]: 982 mSDtfsCounter, 4609 mSDsluCounter, 4676 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4609 SdHoareTripleChecker+Valid, 5658 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:24:12,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4609 Valid, 5658 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 06:24:12,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68469 states. [2024-11-09 06:24:13,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68469 to 41383. [2024-11-09 06:24:13,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41383 states, 41381 states have (on average 1.3818902394818877) internal successors, (57184), 41382 states have internal predecessors, (57184), 0 states have call successors, (0), 0 states 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 06:24:13,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41383 states to 41383 states and 57184 transitions. [2024-11-09 06:24:13,366 INFO L78 Accepts]: Start accepts. Automaton has 41383 states and 57184 transitions. Word has length 81 [2024-11-09 06:24:13,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:24:13,367 INFO L471 AbstractCegarLoop]: Abstraction has 41383 states and 57184 transitions. [2024-11-09 06:24:13,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:24:13,367 INFO L276 IsEmpty]: Start isEmpty. Operand 41383 states and 57184 transitions. [2024-11-09 06:24:13,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 06:24:13,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:24:13,385 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] [2024-11-09 06:24:13,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 06:24:13,385 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:24:13,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:24:13,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1939644092, now seen corresponding path program 1 times [2024-11-09 06:24:13,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:24:13,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978176998] [2024-11-09 06:24:13,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:13,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:24:13,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:24:14,068 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 06:24:14,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:24:14,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978176998] [2024-11-09 06:24:14,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978176998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:24:14,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:24:14,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:24:14,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925813025] [2024-11-09 06:24:14,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:24:14,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:24:14,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:14,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:24:14,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:24:14,071 INFO L87 Difference]: Start difference. First operand 41383 states and 57184 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:24:14,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:24:14,298 INFO L93 Difference]: Finished difference Result 41383 states and 57184 transitions. [2024-11-09 06:24:14,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:24:14,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-09 06:24:14,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:24:14,382 INFO L225 Difference]: With dead ends: 41383 [2024-11-09 06:24:14,383 INFO L226 Difference]: Without dead ends: 41381 [2024-11-09 06:24:14,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:24:14,400 INFO L432 NwaCegarLoop]: 983 mSDtfsCounter, 0 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2947 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:24:14,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2947 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:24:14,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41381 states. [2024-11-09 06:24:15,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41381 to 41381. [2024-11-09 06:24:15,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41381 states, 41380 states have (on average 1.3799420009666505) internal successors, (57102), 41380 states have internal predecessors, (57102), 0 states have call successors, (0), 0 states 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 06:24:15,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41381 states to 41381 states and 57102 transitions. [2024-11-09 06:24:15,674 INFO L78 Accepts]: Start accepts. Automaton has 41381 states and 57102 transitions. Word has length 82 [2024-11-09 06:24:15,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:24:15,675 INFO L471 AbstractCegarLoop]: Abstraction has 41381 states and 57102 transitions. [2024-11-09 06:24:15,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:24:15,675 INFO L276 IsEmpty]: Start isEmpty. Operand 41381 states and 57102 transitions. [2024-11-09 06:24:15,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-09 06:24:15,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:24:15,689 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 06:24:15,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 06:24:15,690 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:24:15,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:24:15,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1906745732, now seen corresponding path program 1 times [2024-11-09 06:24:15,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:24:15,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077310350] [2024-11-09 06:24:15,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:15,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:24:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:24:16,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:24:16,458 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:24:16,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077310350] [2024-11-09 06:24:16,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077310350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:24:16,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:24:16,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 06:24:16,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302642520] [2024-11-09 06:24:16,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:24:16,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:24:16,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:16,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:24:16,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:24:16,460 INFO L87 Difference]: Start difference. First operand 41381 states and 57102 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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 06:24:19,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:24:19,656 INFO L93 Difference]: Finished difference Result 66085 states and 90549 transitions. [2024-11-09 06:24:19,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 06:24:19,657 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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 06:24:19,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:24:19,730 INFO L225 Difference]: With dead ends: 66085 [2024-11-09 06:24:19,730 INFO L226 Difference]: Without dead ends: 60393 [2024-11-09 06:24:19,746 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 06:24:19,746 INFO L432 NwaCegarLoop]: 548 mSDtfsCounter, 2903 mSDsluCounter, 2324 mSDsCounter, 0 mSdLazyCounter, 2637 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2903 SdHoareTripleChecker+Valid, 2872 SdHoareTripleChecker+Invalid, 2644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:24:19,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2903 Valid, 2872 Invalid, 2644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2637 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-09 06:24:19,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60393 states. [2024-11-09 06:24:20,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60393 to 41385. [2024-11-09 06:24:20,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41385 states, 41384 states have (on average 1.3798811134738063) internal successors, (57105), 41384 states have internal predecessors, (57105), 0 states have call successors, (0), 0 states 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 06:24:20,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41385 states to 41385 states and 57105 transitions. [2024-11-09 06:24:20,626 INFO L78 Accepts]: Start accepts. Automaton has 41385 states and 57105 transitions. Word has length 83 [2024-11-09 06:24:20,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:24:20,627 INFO L471 AbstractCegarLoop]: Abstraction has 41385 states and 57105 transitions. [2024-11-09 06:24:20,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 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 06:24:20,627 INFO L276 IsEmpty]: Start isEmpty. Operand 41385 states and 57105 transitions. [2024-11-09 06:24:20,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-09 06:24:20,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:24:20,637 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 06:24:20,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-09 06:24:20,637 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:24:20,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:24:20,638 INFO L85 PathProgramCache]: Analyzing trace with hash 2017272886, now seen corresponding path program 1 times [2024-11-09 06:24:20,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:24:20,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440886021] [2024-11-09 06:24:20,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:20,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:24:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:24:20,928 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 06:24:20,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:24:20,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440886021] [2024-11-09 06:24:20,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440886021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:24:20,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:24:20,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 06:24:20,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059199283] [2024-11-09 06:24:20,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:24:20,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:24:20,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:20,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:24:20,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:24:20,931 INFO L87 Difference]: Start difference. First operand 41385 states and 57105 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 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 06:24:22,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:24:22,638 INFO L93 Difference]: Finished difference Result 110971 states and 154076 transitions. [2024-11-09 06:24:22,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:24:22,639 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 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 06:24:22,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:24:22,809 INFO L225 Difference]: With dead ends: 110971 [2024-11-09 06:24:22,809 INFO L226 Difference]: Without dead ends: 93845 [2024-11-09 06:24:22,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:24:22,845 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 4128 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 1105 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4128 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:24:22,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4128 Valid, 1453 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1105 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 06:24:22,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93845 states. [2024-11-09 06:24:24,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93845 to 41445. [2024-11-09 06:24:24,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41445 states, 41444 states have (on average 1.379813724543963) internal successors, (57185), 41444 states have internal predecessors, (57185), 0 states have call successors, (0), 0 states 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 06:24:24,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41445 states to 41445 states and 57185 transitions. [2024-11-09 06:24:24,405 INFO L78 Accepts]: Start accepts. Automaton has 41445 states and 57185 transitions. Word has length 83 [2024-11-09 06:24:24,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:24:24,406 INFO L471 AbstractCegarLoop]: Abstraction has 41445 states and 57185 transitions. [2024-11-09 06:24:24,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 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 06:24:24,406 INFO L276 IsEmpty]: Start isEmpty. Operand 41445 states and 57185 transitions. [2024-11-09 06:24:24,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-09 06:24:24,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:24:24,420 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 06:24:24,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 06:24:24,421 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:24:24,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:24:24,421 INFO L85 PathProgramCache]: Analyzing trace with hash 2114418786, now seen corresponding path program 1 times [2024-11-09 06:24:24,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:24:24,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744679912] [2024-11-09 06:24:24,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:24,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:24:24,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:24:25,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:24:25,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:24:25,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744679912] [2024-11-09 06:24:25,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744679912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:24:25,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:24:25,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 06:24:25,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827307173] [2024-11-09 06:24:25,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:24:25,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:24:25,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:25,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:24:25,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:24:25,445 INFO L87 Difference]: Start difference. First operand 41445 states and 57185 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 06:24:27,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:24:27,478 INFO L93 Difference]: Finished difference Result 95333 states and 131754 transitions. [2024-11-09 06:24:27,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 06:24:27,479 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 06:24:27,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:24:27,558 INFO L225 Difference]: With dead ends: 95333 [2024-11-09 06:24:27,558 INFO L226 Difference]: Without dead ends: 61727 [2024-11-09 06:24:27,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:24:27,584 INFO L432 NwaCegarLoop]: 640 mSDtfsCounter, 2273 mSDsluCounter, 1908 mSDsCounter, 0 mSdLazyCounter, 2004 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2273 SdHoareTripleChecker+Valid, 2548 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:24:27,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2273 Valid, 2548 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2004 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 06:24:27,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61727 states. [2024-11-09 06:24:28,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61727 to 41411. [2024-11-09 06:24:28,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41411 states, 41410 states have (on average 1.37969089591886) internal successors, (57133), 41410 states have internal predecessors, (57133), 0 states have call successors, (0), 0 states 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 06:24:28,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41411 states to 41411 states and 57133 transitions. [2024-11-09 06:24:28,472 INFO L78 Accepts]: Start accepts. Automaton has 41411 states and 57133 transitions. Word has length 83 [2024-11-09 06:24:28,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:24:28,472 INFO L471 AbstractCegarLoop]: Abstraction has 41411 states and 57133 transitions. [2024-11-09 06:24:28,473 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 06:24:28,473 INFO L276 IsEmpty]: Start isEmpty. Operand 41411 states and 57133 transitions. [2024-11-09 06:24:28,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 06:24:28,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:24:28,482 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 06:24:28,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 06:24:28,482 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:24:28,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:24:28,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1936449238, now seen corresponding path program 1 times [2024-11-09 06:24:28,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:24:28,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748412218] [2024-11-09 06:24:28,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:28,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:24:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:24:29,292 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 06:24:29,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:24:29,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748412218] [2024-11-09 06:24:29,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748412218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:24:29,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:24:29,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 06:24:29,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450078247] [2024-11-09 06:24:29,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:24:29,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:24:29,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:29,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:24:29,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:24:29,296 INFO L87 Difference]: Start difference. First operand 41411 states and 57133 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 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 06:24:32,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:24:32,622 INFO L93 Difference]: Finished difference Result 97891 states and 134554 transitions. [2024-11-09 06:24:32,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 06:24:32,623 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 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 06:24:32,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:24:32,727 INFO L225 Difference]: With dead ends: 97891 [2024-11-09 06:24:32,727 INFO L226 Difference]: Without dead ends: 62625 [2024-11-09 06:24:32,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2024-11-09 06:24:32,747 INFO L432 NwaCegarLoop]: 616 mSDtfsCounter, 2589 mSDsluCounter, 3192 mSDsCounter, 0 mSdLazyCounter, 3064 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2589 SdHoareTripleChecker+Valid, 3808 SdHoareTripleChecker+Invalid, 3131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:24:32,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2589 Valid, 3808 Invalid, 3131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3064 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-09 06:24:32,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62625 states. [2024-11-09 06:24:33,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62625 to 41359. [2024-11-09 06:24:33,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41359 states, 41358 states have (on average 1.378524106581556) internal successors, (57013), 41358 states have internal predecessors, (57013), 0 states have call successors, (0), 0 states 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 06:24:33,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41359 states to 41359 states and 57013 transitions. [2024-11-09 06:24:33,501 INFO L78 Accepts]: Start accepts. Automaton has 41359 states and 57013 transitions. Word has length 84 [2024-11-09 06:24:33,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:24:33,502 INFO L471 AbstractCegarLoop]: Abstraction has 41359 states and 57013 transitions. [2024-11-09 06:24:33,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 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 06:24:33,502 INFO L276 IsEmpty]: Start isEmpty. Operand 41359 states and 57013 transitions. [2024-11-09 06:24:33,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 06:24:33,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:24:33,516 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 06:24:33,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-09 06:24:33,516 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:24:33,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:24:33,517 INFO L85 PathProgramCache]: Analyzing trace with hash -267386351, now seen corresponding path program 1 times [2024-11-09 06:24:33,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:24:33,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400962523] [2024-11-09 06:24:33,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:33,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:24:33,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:24:34,599 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 06:24:34,599 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:24:34,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400962523] [2024-11-09 06:24:34,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400962523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:24:34,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:24:34,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 06:24:34,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137951185] [2024-11-09 06:24:34,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:24:34,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:24:34,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:34,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:24:34,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:24:34,602 INFO L87 Difference]: Start difference. First operand 41359 states and 57013 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 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 06:24:36,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:24:36,323 INFO L93 Difference]: Finished difference Result 102181 states and 141818 transitions. [2024-11-09 06:24:36,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:24:36,324 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 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 06:24:36,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:24:36,418 INFO L225 Difference]: With dead ends: 102181 [2024-11-09 06:24:36,418 INFO L226 Difference]: Without dead ends: 68291 [2024-11-09 06:24:36,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=132, Invalid=374, Unknown=0, NotChecked=0, Total=506 [2024-11-09 06:24:36,447 INFO L432 NwaCegarLoop]: 946 mSDtfsCounter, 5516 mSDsluCounter, 3278 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5516 SdHoareTripleChecker+Valid, 4224 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:24:36,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5516 Valid, 4224 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 06:24:36,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68291 states. [2024-11-09 06:24:37,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68291 to 40987. [2024-11-09 06:24:37,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40987 states, 40986 states have (on average 1.3792270531400965) internal successors, (56529), 40986 states have internal predecessors, (56529), 0 states have call successors, (0), 0 states 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 06:24:37,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40987 states to 40987 states and 56529 transitions. [2024-11-09 06:24:37,309 INFO L78 Accepts]: Start accepts. Automaton has 40987 states and 56529 transitions. Word has length 84 [2024-11-09 06:24:37,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:24:37,310 INFO L471 AbstractCegarLoop]: Abstraction has 40987 states and 56529 transitions. [2024-11-09 06:24:37,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 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 06:24:37,310 INFO L276 IsEmpty]: Start isEmpty. Operand 40987 states and 56529 transitions. [2024-11-09 06:24:37,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 06:24:37,322 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:24:37,322 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 06:24:37,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-09 06:24:37,322 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:24:37,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:24:37,323 INFO L85 PathProgramCache]: Analyzing trace with hash 905787461, now seen corresponding path program 1 times [2024-11-09 06:24:37,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:24:37,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437364006] [2024-11-09 06:24:37,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:37,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:24:37,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:24:37,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:24:37,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:24:37,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437364006] [2024-11-09 06:24:37,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437364006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:24:37,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:24:37,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 06:24:37,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953285793] [2024-11-09 06:24:37,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:24:37,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:24:37,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:37,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:24:37,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:24:37,571 INFO L87 Difference]: Start difference. First operand 40987 states and 56529 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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 06:24:39,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:24:39,259 INFO L93 Difference]: Finished difference Result 101568 states and 140714 transitions. [2024-11-09 06:24:39,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:24:39,260 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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 06:24:39,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:24:39,759 INFO L225 Difference]: With dead ends: 101568 [2024-11-09 06:24:39,759 INFO L226 Difference]: Without dead ends: 84498 [2024-11-09 06:24:39,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:24:39,787 INFO L432 NwaCegarLoop]: 529 mSDtfsCounter, 4085 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4085 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 1291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:24:39,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4085 Valid, 1444 Invalid, 1291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 06:24:39,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84498 states. [2024-11-09 06:24:40,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84498 to 41182. [2024-11-09 06:24:40,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41182 states, 41181 states have (on average 1.3791311527160584) internal successors, (56794), 41181 states have internal predecessors, (56794), 0 states have call successors, (0), 0 states 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 06:24:40,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41182 states to 41182 states and 56794 transitions. [2024-11-09 06:24:40,947 INFO L78 Accepts]: Start accepts. Automaton has 41182 states and 56794 transitions. Word has length 84 [2024-11-09 06:24:40,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:24:40,947 INFO L471 AbstractCegarLoop]: Abstraction has 41182 states and 56794 transitions. [2024-11-09 06:24:40,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 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 06:24:40,947 INFO L276 IsEmpty]: Start isEmpty. Operand 41182 states and 56794 transitions. [2024-11-09 06:24:40,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 06:24:40,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:24:40,964 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 06:24:40,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-09 06:24:40,964 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:24:40,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:24:40,965 INFO L85 PathProgramCache]: Analyzing trace with hash 344848121, now seen corresponding path program 1 times [2024-11-09 06:24:40,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:24:40,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123577637] [2024-11-09 06:24:40,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:40,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:24:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:24:42,570 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 06:24:42,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:24:42,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123577637] [2024-11-09 06:24:42,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123577637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:24:42,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:24:42,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 06:24:42,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480837163] [2024-11-09 06:24:42,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:24:42,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:24:42,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:42,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:24:42,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:24:42,574 INFO L87 Difference]: Start difference. First operand 41182 states and 56794 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 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 06:24:44,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:24:44,211 INFO L93 Difference]: Finished difference Result 101187 states and 140557 transitions. [2024-11-09 06:24:44,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:24:44,212 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 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 06:24:44,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:24:44,299 INFO L225 Difference]: With dead ends: 101187 [2024-11-09 06:24:44,299 INFO L226 Difference]: Without dead ends: 67541 [2024-11-09 06:24:44,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-09 06:24:44,326 INFO L432 NwaCegarLoop]: 937 mSDtfsCounter, 5295 mSDsluCounter, 4676 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5295 SdHoareTripleChecker+Valid, 5613 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:24:44,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5295 Valid, 5613 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 06:24:44,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67541 states. [2024-11-09 06:24:45,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67541 to 41074. [2024-11-09 06:24:45,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41074 states, 41073 states have (on average 1.379154188883208) internal successors, (56646), 41073 states have internal predecessors, (56646), 0 states have call successors, (0), 0 states 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 06:24:45,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41074 states to 41074 states and 56646 transitions. [2024-11-09 06:24:45,214 INFO L78 Accepts]: Start accepts. Automaton has 41074 states and 56646 transitions. Word has length 84 [2024-11-09 06:24:45,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:24:45,215 INFO L471 AbstractCegarLoop]: Abstraction has 41074 states and 56646 transitions. [2024-11-09 06:24:45,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 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 06:24:45,215 INFO L276 IsEmpty]: Start isEmpty. Operand 41074 states and 56646 transitions. [2024-11-09 06:24:45,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 06:24:45,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:24:45,225 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 06:24:45,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-09 06:24:45,225 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:24:45,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:24:45,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1521972473, now seen corresponding path program 1 times [2024-11-09 06:24:45,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:24:45,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175437391] [2024-11-09 06:24:45,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:45,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:24:45,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:24:45,698 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 06:24:45,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:24:45,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175437391] [2024-11-09 06:24:45,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175437391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:24:45,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:24:45,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 06:24:45,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340153431] [2024-11-09 06:24:45,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:24:45,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:24:45,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:45,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:24:45,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:24:45,701 INFO L87 Difference]: Start difference. First operand 41074 states and 56646 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 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 06:24:47,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:24:47,511 INFO L93 Difference]: Finished difference Result 94351 states and 130446 transitions. [2024-11-09 06:24:47,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 06:24:47,511 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 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 06:24:47,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:24:47,578 INFO L225 Difference]: With dead ends: 94351 [2024-11-09 06:24:47,578 INFO L226 Difference]: Without dead ends: 60353 [2024-11-09 06:24:47,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:24:47,602 INFO L432 NwaCegarLoop]: 627 mSDtfsCounter, 2183 mSDsluCounter, 1800 mSDsCounter, 0 mSdLazyCounter, 1817 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2183 SdHoareTripleChecker+Valid, 2427 SdHoareTripleChecker+Invalid, 1849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:24:47,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2183 Valid, 2427 Invalid, 1849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1817 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 06:24:47,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60353 states. [2024-11-09 06:24:48,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60353 to 40832. [2024-11-09 06:24:48,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40832 states, 40831 states have (on average 1.3792461610051188) internal successors, (56316), 40831 states have internal predecessors, (56316), 0 states have call successors, (0), 0 states 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 06:24:48,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40832 states to 40832 states and 56316 transitions. [2024-11-09 06:24:48,546 INFO L78 Accepts]: Start accepts. Automaton has 40832 states and 56316 transitions. Word has length 84 [2024-11-09 06:24:48,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:24:48,546 INFO L471 AbstractCegarLoop]: Abstraction has 40832 states and 56316 transitions. [2024-11-09 06:24:48,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 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 06:24:48,546 INFO L276 IsEmpty]: Start isEmpty. Operand 40832 states and 56316 transitions. [2024-11-09 06:24:48,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-09 06:24:48,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:24:48,559 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] [2024-11-09 06:24:48,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-09 06:24:48,559 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:24:48,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:24:48,560 INFO L85 PathProgramCache]: Analyzing trace with hash -962753776, now seen corresponding path program 1 times [2024-11-09 06:24:48,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:24:48,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585135410] [2024-11-09 06:24:48,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:48,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:24:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:24:48,800 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 06:24:48,800 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:24:48,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585135410] [2024-11-09 06:24:48,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585135410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:24:48,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:24:48,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 06:24:48,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431507407] [2024-11-09 06:24:48,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:24:48,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:24:48,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:48,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:24:48,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:24:48,803 INFO L87 Difference]: Start difference. First operand 40832 states and 56316 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:24:50,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:24:50,675 INFO L93 Difference]: Finished difference Result 119849 states and 166691 transitions. [2024-11-09 06:24:50,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:24:50,676 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-09 06:24:50,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:24:50,847 INFO L225 Difference]: With dead ends: 119849 [2024-11-09 06:24:50,848 INFO L226 Difference]: Without dead ends: 102485 [2024-11-09 06:24:50,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:24:50,879 INFO L432 NwaCegarLoop]: 548 mSDtfsCounter, 3967 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3967 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 1155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:24:50,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3967 Valid, 1417 Invalid, 1155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1046 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 06:24:50,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102485 states. [2024-11-09 06:24:51,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102485 to 40907. [2024-11-09 06:24:51,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40907 states, 40906 states have (on average 1.379161981127463) internal successors, (56416), 40906 states have internal predecessors, (56416), 0 states have call successors, (0), 0 states 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 06:24:52,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40907 states to 40907 states and 56416 transitions. [2024-11-09 06:24:52,043 INFO L78 Accepts]: Start accepts. Automaton has 40907 states and 56416 transitions. Word has length 85 [2024-11-09 06:24:52,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:24:52,044 INFO L471 AbstractCegarLoop]: Abstraction has 40907 states and 56416 transitions. [2024-11-09 06:24:52,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:24:52,044 INFO L276 IsEmpty]: Start isEmpty. Operand 40907 states and 56416 transitions. [2024-11-09 06:24:52,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-09 06:24:52,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:24:52,059 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:24:52,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-09 06:24:52,060 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:24:52,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:24:52,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1055137432, now seen corresponding path program 1 times [2024-11-09 06:24:52,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:24:52,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381057489] [2024-11-09 06:24:52,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:52,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:24:52,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:24:53,085 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 06:24:53,085 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:24:53,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381057489] [2024-11-09 06:24:53,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381057489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:24:53,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:24:53,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 06:24:53,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218800748] [2024-11-09 06:24:53,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:24:53,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:24:53,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:53,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:24:53,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:24:53,089 INFO L87 Difference]: Start difference. First operand 40907 states and 56416 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:24:55,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:24:55,357 INFO L93 Difference]: Finished difference Result 101188 states and 139916 transitions. [2024-11-09 06:24:55,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 06:24:55,357 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-09 06:24:55,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:24:55,442 INFO L225 Difference]: With dead ends: 101188 [2024-11-09 06:24:55,442 INFO L226 Difference]: Without dead ends: 66618 [2024-11-09 06:24:55,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2024-11-09 06:24:55,470 INFO L432 NwaCegarLoop]: 607 mSDtfsCounter, 3360 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 2127 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3360 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 2154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:24:55,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3360 Valid, 2916 Invalid, 2154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2127 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 06:24:55,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66618 states. [2024-11-09 06:24:56,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66618 to 40376. [2024-11-09 06:24:56,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40376 states, 40375 states have (on average 1.3794427244582044) internal successors, (55695), 40375 states have internal predecessors, (55695), 0 states have call successors, (0), 0 states 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 06:24:56,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40376 states to 40376 states and 55695 transitions. [2024-11-09 06:24:56,539 INFO L78 Accepts]: Start accepts. Automaton has 40376 states and 55695 transitions. Word has length 85 [2024-11-09 06:24:56,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:24:56,540 INFO L471 AbstractCegarLoop]: Abstraction has 40376 states and 55695 transitions. [2024-11-09 06:24:56,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:24:56,540 INFO L276 IsEmpty]: Start isEmpty. Operand 40376 states and 55695 transitions. [2024-11-09 06:24:56,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-09 06:24:56,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:24:56,549 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] [2024-11-09 06:24:56,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-09 06:24:56,549 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:24:56,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:24:56,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1379327747, now seen corresponding path program 1 times [2024-11-09 06:24:56,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:24:56,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260057981] [2024-11-09 06:24:56,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:56,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:24:56,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:24:56,944 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 06:24:56,944 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:24:56,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260057981] [2024-11-09 06:24:56,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260057981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:24:56,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:24:56,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 06:24:56,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596343349] [2024-11-09 06:24:56,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:24:56,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:24:56,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:56,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:24:56,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:24:56,947 INFO L87 Difference]: Start difference. First operand 40376 states and 55695 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:24:59,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:24:59,119 INFO L93 Difference]: Finished difference Result 93465 states and 129262 transitions. [2024-11-09 06:24:59,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:24:59,120 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-09 06:24:59,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:24:59,196 INFO L225 Difference]: With dead ends: 93465 [2024-11-09 06:24:59,196 INFO L226 Difference]: Without dead ends: 59777 [2024-11-09 06:24:59,212 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 06:24:59,213 INFO L432 NwaCegarLoop]: 640 mSDtfsCounter, 3272 mSDsluCounter, 1811 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3272 SdHoareTripleChecker+Valid, 2451 SdHoareTripleChecker+Invalid, 1885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:24:59,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3272 Valid, 2451 Invalid, 1885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1852 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 06:24:59,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59777 states. [2024-11-09 06:24:59,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59777 to 40301. [2024-11-09 06:24:59,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40301 states, 40300 states have (on average 1.3793300248138958) internal successors, (55587), 40300 states have internal predecessors, (55587), 0 states have call successors, (0), 0 states 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 06:24:59,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40301 states to 40301 states and 55587 transitions. [2024-11-09 06:24:59,839 INFO L78 Accepts]: Start accepts. Automaton has 40301 states and 55587 transitions. Word has length 85 [2024-11-09 06:24:59,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:24:59,839 INFO L471 AbstractCegarLoop]: Abstraction has 40301 states and 55587 transitions. [2024-11-09 06:24:59,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:24:59,840 INFO L276 IsEmpty]: Start isEmpty. Operand 40301 states and 55587 transitions. [2024-11-09 06:24:59,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-09 06:24:59,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:24:59,849 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] [2024-11-09 06:24:59,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-09 06:24:59,850 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:24:59,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:24:59,850 INFO L85 PathProgramCache]: Analyzing trace with hash -964015433, now seen corresponding path program 1 times [2024-11-09 06:24:59,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:24:59,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269961548] [2024-11-09 06:24:59,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:59,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:24:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:24:59,972 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 06:24:59,972 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:24:59,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269961548] [2024-11-09 06:24:59,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269961548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:24:59,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:24:59,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:24:59,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102303258] [2024-11-09 06:24:59,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:24:59,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:24:59,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:59,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:24:59,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:24:59,976 INFO L87 Difference]: Start difference. First operand 40301 states and 55587 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:25:00,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:25:00,245 INFO L93 Difference]: Finished difference Result 58504 states and 80895 transitions. [2024-11-09 06:25:00,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:25:00,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-09 06:25:00,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:25:00,294 INFO L225 Difference]: With dead ends: 58504 [2024-11-09 06:25:00,295 INFO L226 Difference]: Without dead ends: 40303 [2024-11-09 06:25:00,311 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 06:25:00,311 INFO L432 NwaCegarLoop]: 1183 mSDtfsCounter, 564 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 2040 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:25:00,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 2040 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:25:00,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40303 states. [2024-11-09 06:25:01,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40303 to 40301. [2024-11-09 06:25:01,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40301 states, 40300 states have (on average 1.3678908188585608) internal successors, (55126), 40300 states have internal predecessors, (55126), 0 states have call successors, (0), 0 states 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 06:25:01,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40301 states to 40301 states and 55126 transitions. [2024-11-09 06:25:01,319 INFO L78 Accepts]: Start accepts. Automaton has 40301 states and 55126 transitions. Word has length 85 [2024-11-09 06:25:01,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:25:01,320 INFO L471 AbstractCegarLoop]: Abstraction has 40301 states and 55126 transitions. [2024-11-09 06:25:01,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:25:01,320 INFO L276 IsEmpty]: Start isEmpty. Operand 40301 states and 55126 transitions. [2024-11-09 06:25:01,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-09 06:25:01,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:25:01,335 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] [2024-11-09 06:25:01,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-09 06:25:01,336 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-09 06:25:01,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:25:01,336 INFO L85 PathProgramCache]: Analyzing trace with hash 520335053, now seen corresponding path program 1 times [2024-11-09 06:25:01,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:25:01,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30525858] [2024-11-09 06:25:01,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:25:01,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:25:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat