./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a2fcef-eb81-433d-b94e-01ead2340e74/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a2fcef-eb81-433d-b94e-01ead2340e74/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a2fcef-eb81-433d-b94e-01ead2340e74/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a2fcef-eb81-433d-b94e-01ead2340e74/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a2fcef-eb81-433d-b94e-01ead2340e74/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a2fcef-eb81-433d-b94e-01ead2340e74/bin/utaipan-verify-sOmjnqqW8E --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 c7aa3cc4b1f15d564db90712e4f440d0f111d49f542d9eda58173576bb757792 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:34:04,925 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:34:05,029 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a2fcef-eb81-433d-b94e-01ead2340e74/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 04:34:05,037 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:34:05,038 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:34:05,067 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:34:05,068 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:34:05,068 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:34:05,068 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:34:05,068 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:34:05,069 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:34:05,069 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:34:05,069 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:34:05,069 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:34:05,069 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:34:05,069 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:34:05,069 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:34:05,069 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:34:05,069 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:34:05,070 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:34:05,070 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:34:05,070 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:34:05,070 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:34:05,072 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:34:05,073 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:34:05,073 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:34:05,073 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:34:05,073 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:34:05,073 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:34:05,073 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:34:05,073 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:34:05,074 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:34:05,074 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:34:05,074 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:34:05,074 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:34:05,075 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:34:05,075 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:34:05,075 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:34:05,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:34:05,076 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:34:05,076 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:34:05,076 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:34:05,076 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:34:05,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:34:05,076 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:34:05,076 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:34:05,076 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:34:05,077 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_94a2fcef-eb81-433d-b94e-01ead2340e74/bin/utaipan-verify-sOmjnqqW8E 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 -> c7aa3cc4b1f15d564db90712e4f440d0f111d49f542d9eda58173576bb757792 [2024-11-14 04:34:05,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:34:05,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:34:05,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:34:05,437 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:34:05,438 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:34:05,439 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a2fcef-eb81-433d-b94e-01ead2340e74/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c Unable to find full path for "g++" [2024-11-14 04:34:07,472 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:34:07,986 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:34:07,990 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a2fcef-eb81-433d-b94e-01ead2340e74/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2024-11-14 04:34:08,021 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a2fcef-eb81-433d-b94e-01ead2340e74/bin/utaipan-verify-sOmjnqqW8E/data/1cb924b1d/b3d7fb59dc8d488fa46c24b453096ecb/FLAG438ed547c [2024-11-14 04:34:08,047 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a2fcef-eb81-433d-b94e-01ead2340e74/bin/utaipan-verify-sOmjnqqW8E/data/1cb924b1d/b3d7fb59dc8d488fa46c24b453096ecb [2024-11-14 04:34:08,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:34:08,053 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:34:08,057 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:34:08,057 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:34:08,063 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:34:08,064 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:34:08" (1/1) ... [2024-11-14 04:34:08,068 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@507364e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:08, skipping insertion in model container [2024-11-14 04:34:08,068 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:34:08" (1/1) ... [2024-11-14 04:34:08,176 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:34:08,557 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_94a2fcef-eb81-433d-b94e-01ead2340e74/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[9421,9434] [2024-11-14 04:34:08,588 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_94a2fcef-eb81-433d-b94e-01ead2340e74/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[12913,12926] [2024-11-14 04:34:08,599 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_94a2fcef-eb81-433d-b94e-01ead2340e74/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[14069,14082] [2024-11-14 04:34:08,606 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_94a2fcef-eb81-433d-b94e-01ead2340e74/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[14725,14738] [2024-11-14 04:34:08,631 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_94a2fcef-eb81-433d-b94e-01ead2340e74/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[16246,16259] [2024-11-14 04:34:08,646 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_94a2fcef-eb81-433d-b94e-01ead2340e74/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[16902,16915] [2024-11-14 04:34:08,654 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_94a2fcef-eb81-433d-b94e-01ead2340e74/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[17886,17899] [2024-11-14 04:34:08,672 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_94a2fcef-eb81-433d-b94e-01ead2340e74/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[20224,20237] [2024-11-14 04:34:08,677 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_94a2fcef-eb81-433d-b94e-01ead2340e74/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[20883,20896] [2024-11-14 04:34:08,686 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_94a2fcef-eb81-433d-b94e-01ead2340e74/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[21907,21920] [2024-11-14 04:34:08,698 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_94a2fcef-eb81-433d-b94e-01ead2340e74/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[23782,23795] [2024-11-14 04:34:08,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:34:08,844 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:34:08,946 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_94a2fcef-eb81-433d-b94e-01ead2340e74/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[9421,9434] [2024-11-14 04:34:08,985 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_94a2fcef-eb81-433d-b94e-01ead2340e74/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[12913,12926] [2024-11-14 04:34:09,004 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_94a2fcef-eb81-433d-b94e-01ead2340e74/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[14069,14082] [2024-11-14 04:34:09,013 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_94a2fcef-eb81-433d-b94e-01ead2340e74/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[14725,14738] [2024-11-14 04:34:09,030 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_94a2fcef-eb81-433d-b94e-01ead2340e74/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[16246,16259] [2024-11-14 04:34:09,039 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_94a2fcef-eb81-433d-b94e-01ead2340e74/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[16902,16915] [2024-11-14 04:34:09,052 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_94a2fcef-eb81-433d-b94e-01ead2340e74/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[17886,17899] [2024-11-14 04:34:09,081 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_94a2fcef-eb81-433d-b94e-01ead2340e74/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[20224,20237] [2024-11-14 04:34:09,091 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_94a2fcef-eb81-433d-b94e-01ead2340e74/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[20883,20896] [2024-11-14 04:34:09,105 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_94a2fcef-eb81-433d-b94e-01ead2340e74/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[21907,21920] [2024-11-14 04:34:09,126 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_94a2fcef-eb81-433d-b94e-01ead2340e74/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[23782,23795] [2024-11-14 04:34:09,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:34:09,312 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:34:09,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:09 WrapperNode [2024-11-14 04:34:09,314 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:34:09,315 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:34:09,316 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:34:09,316 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:34:09,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:09" (1/1) ... [2024-11-14 04:34:09,355 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:09" (1/1) ... [2024-11-14 04:34:09,482 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2022 [2024-11-14 04:34:09,485 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:34:09,486 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:34:09,486 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:34:09,486 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:34:09,497 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:09" (1/1) ... [2024-11-14 04:34:09,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:09" (1/1) ... [2024-11-14 04:34:09,503 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:09" (1/1) ... [2024-11-14 04:34:09,503 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:09" (1/1) ... [2024-11-14 04:34:09,532 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:09" (1/1) ... [2024-11-14 04:34:09,543 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:09" (1/1) ... [2024-11-14 04:34:09,547 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:09" (1/1) ... [2024-11-14 04:34:09,552 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:09" (1/1) ... [2024-11-14 04:34:09,565 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:34:09,571 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:34:09,571 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:34:09,571 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:34:09,572 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:09" (1/1) ... [2024-11-14 04:34:09,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:34:09,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a2fcef-eb81-433d-b94e-01ead2340e74/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:34:09,647 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a2fcef-eb81-433d-b94e-01ead2340e74/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:34:09,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a2fcef-eb81-433d-b94e-01ead2340e74/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:34:09,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:34:09,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:34:09,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:34:09,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:34:09,928 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:34:09,931 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:34:12,020 INFO L? ?]: Removed 326 outVars from TransFormulas that were not future-live. [2024-11-14 04:34:12,021 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:34:12,217 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:34:12,217 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 04:34:12,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:34:12 BoogieIcfgContainer [2024-11-14 04:34:12,221 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:34:12,224 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:34:12,224 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:34:12,234 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:34:12,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:34:08" (1/3) ... [2024-11-14 04:34:12,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ebe325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:34:12, skipping insertion in model container [2024-11-14 04:34:12,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:34:09" (2/3) ... [2024-11-14 04:34:12,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ebe325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:34:12, skipping insertion in model container [2024-11-14 04:34:12,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:34:12" (3/3) ... [2024-11-14 04:34:12,239 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2024-11-14 04:34:12,260 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:34:12,264 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c that has 1 procedures, 339 locations, 1 initial locations, 0 loop locations, and 11 error locations. [2024-11-14 04:34:12,361 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:34:12,382 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;@5fddc459, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:34:12,382 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-14 04:34:12,393 INFO L276 IsEmpty]: Start isEmpty. Operand has 339 states, 327 states have (on average 1.8440366972477065) internal successors, (603), 338 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:12,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-14 04:34:12,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:12,414 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] [2024-11-14 04:34:12,415 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:12,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:12,423 INFO L85 PathProgramCache]: Analyzing trace with hash -972469851, now seen corresponding path program 1 times [2024-11-14 04:34:12,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:12,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501672746] [2024-11-14 04:34:12,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:12,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:13,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:13,416 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:13,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501672746] [2024-11-14 04:34:13,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501672746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:13,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:13,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:34:13,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893510643] [2024-11-14 04:34:13,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:13,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:34:13,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:13,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:34:13,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:34:13,460 INFO L87 Difference]: Start difference. First operand has 339 states, 327 states have (on average 1.8440366972477065) internal successors, (603), 338 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:13,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:13,994 INFO L93 Difference]: Finished difference Result 531 states and 907 transitions. [2024-11-14 04:34:13,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:34:13,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-14 04:34:13,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:14,008 INFO L225 Difference]: With dead ends: 531 [2024-11-14 04:34:14,009 INFO L226 Difference]: Without dead ends: 285 [2024-11-14 04:34:14,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:34:14,017 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 1369 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1369 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:14,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1369 Valid, 358 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:34:14,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-11-14 04:34:14,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2024-11-14 04:34:14,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 274 states have (on average 1.2554744525547445) internal successors, (344), 284 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:14,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 344 transitions. [2024-11-14 04:34:14,092 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 344 transitions. Word has length 58 [2024-11-14 04:34:14,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:14,094 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 344 transitions. [2024-11-14 04:34:14,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:14,094 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 344 transitions. [2024-11-14 04:34:14,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-14 04:34:14,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:14,097 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] [2024-11-14 04:34:14,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:34:14,101 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:14,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:14,102 INFO L85 PathProgramCache]: Analyzing trace with hash 2110592992, now seen corresponding path program 1 times [2024-11-14 04:34:14,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:14,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077744206] [2024-11-14 04:34:14,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:14,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:14,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:14,492 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:14,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077744206] [2024-11-14 04:34:14,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077744206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:14,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:14,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:34:14,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70928302] [2024-11-14 04:34:14,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:14,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:34:14,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:14,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:34:14,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:34:14,497 INFO L87 Difference]: Start difference. First operand 285 states and 344 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:14,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:14,858 INFO L93 Difference]: Finished difference Result 471 states and 582 transitions. [2024-11-14 04:34:14,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:34:14,859 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-14 04:34:14,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:14,861 INFO L225 Difference]: With dead ends: 471 [2024-11-14 04:34:14,861 INFO L226 Difference]: Without dead ends: 265 [2024-11-14 04:34:14,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:34:14,863 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 884 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:14,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 191 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:34:14,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-14 04:34:14,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2024-11-14 04:34:14,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 254 states have (on average 1.2559055118110236) internal successors, (319), 264 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:14,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 319 transitions. [2024-11-14 04:34:14,876 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 319 transitions. Word has length 59 [2024-11-14 04:34:14,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:14,876 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 319 transitions. [2024-11-14 04:34:14,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:14,877 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 319 transitions. [2024-11-14 04:34:14,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-14 04:34:14,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:14,879 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:14,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 04:34:14,879 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:14,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:14,880 INFO L85 PathProgramCache]: Analyzing trace with hash -287578716, now seen corresponding path program 1 times [2024-11-14 04:34:14,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:14,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871247345] [2024-11-14 04:34:14,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:14,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:14,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:15,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:15,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:15,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871247345] [2024-11-14 04:34:15,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871247345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:15,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:15,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:34:15,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708897726] [2024-11-14 04:34:15,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:15,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:34:15,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:15,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:34:15,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:34:15,127 INFO L87 Difference]: Start difference. First operand 265 states and 319 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:15,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:15,407 INFO L93 Difference]: Finished difference Result 451 states and 556 transitions. [2024-11-14 04:34:15,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:34:15,407 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-14 04:34:15,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:15,409 INFO L225 Difference]: With dead ends: 451 [2024-11-14 04:34:15,409 INFO L226 Difference]: Without dead ends: 243 [2024-11-14 04:34:15,410 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 [2024-11-14 04:34:15,411 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 836 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:15,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 179 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:34:15,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-11-14 04:34:15,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2024-11-14 04:34:15,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 232 states have (on average 1.2672413793103448) internal successors, (294), 242 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:15,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 294 transitions. [2024-11-14 04:34:15,427 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 294 transitions. Word has length 60 [2024-11-14 04:34:15,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:15,428 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 294 transitions. [2024-11-14 04:34:15,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:15,428 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 294 transitions. [2024-11-14 04:34:15,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-14 04:34:15,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:15,430 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:15,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 04:34:15,431 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:15,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:15,431 INFO L85 PathProgramCache]: Analyzing trace with hash -686799403, now seen corresponding path program 1 times [2024-11-14 04:34:15,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:15,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655401055] [2024-11-14 04:34:15,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:15,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:15,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:15,659 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:15,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655401055] [2024-11-14 04:34:15,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655401055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:15,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:15,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:34:15,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367089403] [2024-11-14 04:34:15,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:15,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:34:15,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:15,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:34:15,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:34:15,662 INFO L87 Difference]: Start difference. First operand 243 states and 294 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:16,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:16,032 INFO L93 Difference]: Finished difference Result 546 states and 675 transitions. [2024-11-14 04:34:16,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:34:16,033 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-14 04:34:16,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:16,035 INFO L225 Difference]: With dead ends: 546 [2024-11-14 04:34:16,035 INFO L226 Difference]: Without dead ends: 346 [2024-11-14 04:34:16,035 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 [2024-11-14 04:34:16,036 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 1038 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:16,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 261 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:34:16,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-14 04:34:16,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 304. [2024-11-14 04:34:16,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 293 states have (on average 1.3139931740614335) internal successors, (385), 303 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:16,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 385 transitions. [2024-11-14 04:34:16,070 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 385 transitions. Word has length 61 [2024-11-14 04:34:16,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:16,070 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 385 transitions. [2024-11-14 04:34:16,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:16,071 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 385 transitions. [2024-11-14 04:34:16,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-14 04:34:16,072 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:16,072 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] [2024-11-14 04:34:16,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 04:34:16,073 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:16,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:16,075 INFO L85 PathProgramCache]: Analyzing trace with hash -617130845, now seen corresponding path program 1 times [2024-11-14 04:34:16,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:16,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207812361] [2024-11-14 04:34:16,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:16,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:16,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:16,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:16,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:16,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207812361] [2024-11-14 04:34:16,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207812361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:16,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:16,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 04:34:16,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929437855] [2024-11-14 04:34:16,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:16,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:34:16,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:16,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:34:16,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:34:16,781 INFO L87 Difference]: Start difference. First operand 304 states and 385 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:17,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:17,636 INFO L93 Difference]: Finished difference Result 530 states and 670 transitions. [2024-11-14 04:34:17,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 04:34:17,637 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-14 04:34:17,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:17,642 INFO L225 Difference]: With dead ends: 530 [2024-11-14 04:34:17,642 INFO L226 Difference]: Without dead ends: 424 [2024-11-14 04:34:17,643 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 [2024-11-14 04:34:17,644 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 570 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:17,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 901 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 04:34:17,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2024-11-14 04:34:17,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 304. [2024-11-14 04:34:17,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 293 states have (on average 1.310580204778157) internal successors, (384), 303 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:17,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 384 transitions. [2024-11-14 04:34:17,659 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 384 transitions. Word has length 62 [2024-11-14 04:34:17,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:17,659 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 384 transitions. [2024-11-14 04:34:17,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:17,659 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 384 transitions. [2024-11-14 04:34:17,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-14 04:34:17,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:17,661 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] [2024-11-14 04:34:17,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 04:34:17,662 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:17,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:17,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1025976073, now seen corresponding path program 1 times [2024-11-14 04:34:17,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:17,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401501983] [2024-11-14 04:34:17,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:17,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:17,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:18,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:18,219 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:18,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401501983] [2024-11-14 04:34:18,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401501983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:18,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:18,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 04:34:18,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432559250] [2024-11-14 04:34:18,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:18,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:34:18,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:18,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:34:18,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:34:18,226 INFO L87 Difference]: Start difference. First operand 304 states and 384 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:19,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:19,065 INFO L93 Difference]: Finished difference Result 565 states and 720 transitions. [2024-11-14 04:34:19,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 04:34:19,065 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-14 04:34:19,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:19,067 INFO L225 Difference]: With dead ends: 565 [2024-11-14 04:34:19,068 INFO L226 Difference]: Without dead ends: 481 [2024-11-14 04:34:19,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-14 04:34:19,069 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 846 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:19,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 991 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 04:34:19,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-11-14 04:34:19,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 304. [2024-11-14 04:34:19,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 293 states have (on average 1.3071672354948805) internal successors, (383), 303 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:19,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 383 transitions. [2024-11-14 04:34:19,081 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 383 transitions. Word has length 62 [2024-11-14 04:34:19,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:19,081 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 383 transitions. [2024-11-14 04:34:19,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:19,082 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 383 transitions. [2024-11-14 04:34:19,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-14 04:34:19,083 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:19,083 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] [2024-11-14 04:34:19,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 04:34:19,083 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:19,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:19,084 INFO L85 PathProgramCache]: Analyzing trace with hash 762232665, now seen corresponding path program 1 times [2024-11-14 04:34:19,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:19,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110943339] [2024-11-14 04:34:19,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:19,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:19,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:19,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:19,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110943339] [2024-11-14 04:34:19,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110943339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:19,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:19,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 04:34:19,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43256597] [2024-11-14 04:34:19,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:19,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 04:34:19,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:19,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 04:34:19,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:34:19,518 INFO L87 Difference]: Start difference. First operand 304 states and 383 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:20,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:20,160 INFO L93 Difference]: Finished difference Result 586 states and 724 transitions. [2024-11-14 04:34:20,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 04:34:20,161 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-14 04:34:20,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:20,164 INFO L225 Difference]: With dead ends: 586 [2024-11-14 04:34:20,165 INFO L226 Difference]: Without dead ends: 435 [2024-11-14 04:34:20,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-14 04:34:20,168 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 759 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:20,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 634 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 04:34:20,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2024-11-14 04:34:20,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 304. [2024-11-14 04:34:20,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 293 states have (on average 1.3037542662116042) internal successors, (382), 303 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:20,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 382 transitions. [2024-11-14 04:34:20,194 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 382 transitions. Word has length 62 [2024-11-14 04:34:20,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:20,194 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 382 transitions. [2024-11-14 04:34:20,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:20,196 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 382 transitions. [2024-11-14 04:34:20,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-14 04:34:20,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:20,198 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:20,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 04:34:20,198 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:20,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:20,199 INFO L85 PathProgramCache]: Analyzing trace with hash 350648810, now seen corresponding path program 1 times [2024-11-14 04:34:20,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:20,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210805158] [2024-11-14 04:34:20,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:20,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:20,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:20,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:20,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:20,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210805158] [2024-11-14 04:34:20,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210805158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:20,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:20,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 04:34:20,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191239892] [2024-11-14 04:34:20,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:20,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:34:20,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:20,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:34:20,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:34:20,687 INFO L87 Difference]: Start difference. First operand 304 states and 382 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:21,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:21,459 INFO L93 Difference]: Finished difference Result 538 states and 674 transitions. [2024-11-14 04:34:21,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 04:34:21,460 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-14 04:34:21,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:21,462 INFO L225 Difference]: With dead ends: 538 [2024-11-14 04:34:21,462 INFO L226 Difference]: Without dead ends: 461 [2024-11-14 04:34:21,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-14 04:34:21,463 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 854 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:21,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 850 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 04:34:21,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-14 04:34:21,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 304. [2024-11-14 04:34:21,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 293 states have (on average 1.3003412969283277) internal successors, (381), 303 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:21,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 381 transitions. [2024-11-14 04:34:21,475 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 381 transitions. Word has length 64 [2024-11-14 04:34:21,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:21,475 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 381 transitions. [2024-11-14 04:34:21,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:21,476 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 381 transitions. [2024-11-14 04:34:21,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-14 04:34:21,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:21,476 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:21,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 04:34:21,477 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:21,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:21,477 INFO L85 PathProgramCache]: Analyzing trace with hash -2032121384, now seen corresponding path program 1 times [2024-11-14 04:34:21,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:21,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918573654] [2024-11-14 04:34:21,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:21,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:21,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:21,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:21,867 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:21,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918573654] [2024-11-14 04:34:21,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918573654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:21,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:21,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 04:34:21,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211215715] [2024-11-14 04:34:21,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:21,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:34:21,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:21,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:34:21,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:34:21,869 INFO L87 Difference]: Start difference. First operand 304 states and 381 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:22,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:22,596 INFO L93 Difference]: Finished difference Result 570 states and 721 transitions. [2024-11-14 04:34:22,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 04:34:22,597 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-14 04:34:22,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:22,599 INFO L225 Difference]: With dead ends: 570 [2024-11-14 04:34:22,600 INFO L226 Difference]: Without dead ends: 481 [2024-11-14 04:34:22,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-14 04:34:22,601 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 652 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:22,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 783 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 04:34:22,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-11-14 04:34:22,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 304. [2024-11-14 04:34:22,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 293 states have (on average 1.2969283276450512) internal successors, (380), 303 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:22,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 380 transitions. [2024-11-14 04:34:22,623 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 380 transitions. Word has length 64 [2024-11-14 04:34:22,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:22,623 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 380 transitions. [2024-11-14 04:34:22,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:22,624 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 380 transitions. [2024-11-14 04:34:22,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-14 04:34:22,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:22,625 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:22,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 04:34:22,625 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:22,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:22,625 INFO L85 PathProgramCache]: Analyzing trace with hash 861544116, now seen corresponding path program 1 times [2024-11-14 04:34:22,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:22,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530662117] [2024-11-14 04:34:22,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:22,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:22,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:23,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:23,054 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:23,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530662117] [2024-11-14 04:34:23,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530662117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:23,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:23,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 04:34:23,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272535784] [2024-11-14 04:34:23,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:23,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:34:23,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:23,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:34:23,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:34:23,056 INFO L87 Difference]: Start difference. First operand 304 states and 380 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:23,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:23,797 INFO L93 Difference]: Finished difference Result 535 states and 669 transitions. [2024-11-14 04:34:23,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 04:34:23,798 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-14 04:34:23,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:23,800 INFO L225 Difference]: With dead ends: 535 [2024-11-14 04:34:23,801 INFO L226 Difference]: Without dead ends: 461 [2024-11-14 04:34:23,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-14 04:34:23,802 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 847 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:23,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 906 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 04:34:23,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-14 04:34:23,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 304. [2024-11-14 04:34:23,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 293 states have (on average 1.2935153583617747) internal successors, (379), 303 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:23,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 379 transitions. [2024-11-14 04:34:23,818 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 379 transitions. Word has length 64 [2024-11-14 04:34:23,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:23,819 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 379 transitions. [2024-11-14 04:34:23,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:23,819 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 379 transitions. [2024-11-14 04:34:23,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-14 04:34:23,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:23,820 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:23,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 04:34:23,821 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:23,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:23,822 INFO L85 PathProgramCache]: Analyzing trace with hash -404487765, now seen corresponding path program 1 times [2024-11-14 04:34:23,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:23,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151414910] [2024-11-14 04:34:23,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:23,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:24,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:24,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:24,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151414910] [2024-11-14 04:34:24,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151414910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:24,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:24,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-14 04:34:24,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071305495] [2024-11-14 04:34:24,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:24,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 04:34:24,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:24,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 04:34:24,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-14 04:34:24,604 INFO L87 Difference]: Start difference. First operand 304 states and 379 transitions. Second operand has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 10 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:25,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:25,890 INFO L93 Difference]: Finished difference Result 656 states and 829 transitions. [2024-11-14 04:34:25,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-14 04:34:25,891 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 10 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-14 04:34:25,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:25,894 INFO L225 Difference]: With dead ends: 656 [2024-11-14 04:34:25,894 INFO L226 Difference]: Without dead ends: 651 [2024-11-14 04:34:25,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=467, Unknown=0, NotChecked=0, Total=650 [2024-11-14 04:34:25,895 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 2096 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2096 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:25,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2096 Valid, 758 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 04:34:25,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2024-11-14 04:34:25,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 308. [2024-11-14 04:34:25,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 297 states have (on average 1.2895622895622896) internal successors, (383), 307 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:25,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 383 transitions. [2024-11-14 04:34:25,914 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 383 transitions. Word has length 64 [2024-11-14 04:34:25,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:25,914 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 383 transitions. [2024-11-14 04:34:25,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 10 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:25,915 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 383 transitions. [2024-11-14 04:34:25,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-14 04:34:25,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:25,919 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:25,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 04:34:25,920 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:25,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:25,920 INFO L85 PathProgramCache]: Analyzing trace with hash 334726124, now seen corresponding path program 1 times [2024-11-14 04:34:25,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:25,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183563380] [2024-11-14 04:34:25,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:25,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:26,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:26,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:26,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183563380] [2024-11-14 04:34:26,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183563380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:26,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:26,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 04:34:26,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11438351] [2024-11-14 04:34:26,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:26,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:34:26,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:26,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:34:26,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:34:26,334 INFO L87 Difference]: Start difference. First operand 308 states and 383 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:26,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:26,962 INFO L93 Difference]: Finished difference Result 485 states and 612 transitions. [2024-11-14 04:34:26,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 04:34:26,963 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-14 04:34:26,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:26,965 INFO L225 Difference]: With dead ends: 485 [2024-11-14 04:34:26,965 INFO L226 Difference]: Without dead ends: 349 [2024-11-14 04:34:26,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2024-11-14 04:34:26,966 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 489 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:26,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 707 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 04:34:26,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-11-14 04:34:26,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 308. [2024-11-14 04:34:26,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 297 states have (on average 1.2828282828282829) internal successors, (381), 307 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:26,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 381 transitions. [2024-11-14 04:34:26,977 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 381 transitions. Word has length 64 [2024-11-14 04:34:26,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:26,977 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 381 transitions. [2024-11-14 04:34:26,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:26,978 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 381 transitions. [2024-11-14 04:34:26,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-14 04:34:26,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:26,979 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:26,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-14 04:34:26,979 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:26,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:26,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1265909968, now seen corresponding path program 1 times [2024-11-14 04:34:26,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:26,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376785883] [2024-11-14 04:34:26,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:26,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:27,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:27,375 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:27,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376785883] [2024-11-14 04:34:27,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376785883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:27,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:27,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 04:34:27,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447414234] [2024-11-14 04:34:27,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:27,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:34:27,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:27,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:34:27,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:34:27,379 INFO L87 Difference]: Start difference. First operand 308 states and 381 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:28,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:28,129 INFO L93 Difference]: Finished difference Result 466 states and 571 transitions. [2024-11-14 04:34:28,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 04:34:28,130 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-14 04:34:28,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:28,132 INFO L225 Difference]: With dead ends: 466 [2024-11-14 04:34:28,132 INFO L226 Difference]: Without dead ends: 461 [2024-11-14 04:34:28,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-14 04:34:28,133 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 838 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:28,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 946 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 04:34:28,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-14 04:34:28,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 308. [2024-11-14 04:34:28,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 297 states have (on average 1.2760942760942762) internal successors, (379), 307 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:28,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 379 transitions. [2024-11-14 04:34:28,146 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 379 transitions. Word has length 64 [2024-11-14 04:34:28,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:28,146 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 379 transitions. [2024-11-14 04:34:28,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:28,147 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 379 transitions. [2024-11-14 04:34:28,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-14 04:34:28,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:28,148 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:28,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 04:34:28,148 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:28,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:28,148 INFO L85 PathProgramCache]: Analyzing trace with hash 646287134, now seen corresponding path program 1 times [2024-11-14 04:34:28,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:28,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93781611] [2024-11-14 04:34:28,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:28,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:28,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:28,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:28,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:28,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93781611] [2024-11-14 04:34:28,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93781611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:28,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:28,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 04:34:28,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484188039] [2024-11-14 04:34:28,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:28,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:34:28,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:28,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:34:28,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:34:28,492 INFO L87 Difference]: Start difference. First operand 308 states and 379 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:29,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:29,290 INFO L93 Difference]: Finished difference Result 502 states and 621 transitions. [2024-11-14 04:34:29,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 04:34:29,290 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-14 04:34:29,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:29,292 INFO L225 Difference]: With dead ends: 502 [2024-11-14 04:34:29,292 INFO L226 Difference]: Without dead ends: 485 [2024-11-14 04:34:29,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-14 04:34:29,293 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 820 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:29,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 1182 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 04:34:29,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-11-14 04:34:29,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 308. [2024-11-14 04:34:29,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 297 states have (on average 1.2693602693602695) internal successors, (377), 307 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:29,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 377 transitions. [2024-11-14 04:34:29,308 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 377 transitions. Word has length 64 [2024-11-14 04:34:29,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:29,308 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 377 transitions. [2024-11-14 04:34:29,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:29,309 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 377 transitions. [2024-11-14 04:34:29,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-14 04:34:29,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:29,310 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:29,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-14 04:34:29,310 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:29,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:29,310 INFO L85 PathProgramCache]: Analyzing trace with hash 79613180, now seen corresponding path program 1 times [2024-11-14 04:34:29,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:29,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355566253] [2024-11-14 04:34:29,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:29,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:29,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:29,641 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:29,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355566253] [2024-11-14 04:34:29,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355566253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:29,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:29,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 04:34:29,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505762585] [2024-11-14 04:34:29,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:29,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:34:29,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:29,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:34:29,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:34:29,643 INFO L87 Difference]: Start difference. First operand 308 states and 377 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:30,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:30,331 INFO L93 Difference]: Finished difference Result 466 states and 567 transitions. [2024-11-14 04:34:30,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 04:34:30,332 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-14 04:34:30,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:30,333 INFO L225 Difference]: With dead ends: 466 [2024-11-14 04:34:30,333 INFO L226 Difference]: Without dead ends: 461 [2024-11-14 04:34:30,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-14 04:34:30,334 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 905 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:30,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 814 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 04:34:30,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-14 04:34:30,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 304. [2024-11-14 04:34:30,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 293 states have (on average 1.2696245733788396) internal successors, (372), 303 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:30,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 372 transitions. [2024-11-14 04:34:30,345 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 372 transitions. Word has length 65 [2024-11-14 04:34:30,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:30,345 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 372 transitions. [2024-11-14 04:34:30,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:30,346 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 372 transitions. [2024-11-14 04:34:30,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-14 04:34:30,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:30,347 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:30,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-14 04:34:30,348 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:30,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:30,348 INFO L85 PathProgramCache]: Analyzing trace with hash 107558087, now seen corresponding path program 1 times [2024-11-14 04:34:30,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:30,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954278625] [2024-11-14 04:34:30,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:30,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:31,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:31,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:31,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954278625] [2024-11-14 04:34:31,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954278625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:31,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:31,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-14 04:34:31,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732157918] [2024-11-14 04:34:31,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:31,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 04:34:31,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:31,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 04:34:31,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-14 04:34:31,021 INFO L87 Difference]: Start difference. First operand 304 states and 372 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 9 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:31,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:31,497 INFO L93 Difference]: Finished difference Result 484 states and 597 transitions. [2024-11-14 04:34:31,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 04:34:31,497 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 9 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-14 04:34:31,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:31,499 INFO L225 Difference]: With dead ends: 484 [2024-11-14 04:34:31,499 INFO L226 Difference]: Without dead ends: 349 [2024-11-14 04:34:31,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2024-11-14 04:34:31,501 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 862 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:31,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 585 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:34:31,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-11-14 04:34:31,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 241. [2024-11-14 04:34:31,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 234 states have (on average 1.2606837606837606) internal successors, (295), 240 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:31,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 295 transitions. [2024-11-14 04:34:31,511 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 295 transitions. Word has length 66 [2024-11-14 04:34:31,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:31,511 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 295 transitions. [2024-11-14 04:34:31,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 9 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:31,511 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 295 transitions. [2024-11-14 04:34:31,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-14 04:34:31,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:31,512 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:31,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-14 04:34:31,513 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:31,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:31,514 INFO L85 PathProgramCache]: Analyzing trace with hash 89242274, now seen corresponding path program 1 times [2024-11-14 04:34:31,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:31,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530800781] [2024-11-14 04:34:31,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:31,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:31,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:33,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:33,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:33,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530800781] [2024-11-14 04:34:33,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530800781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:33,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:33,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-14 04:34:33,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681993998] [2024-11-14 04:34:33,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:33,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-14 04:34:33,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:33,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-14 04:34:33,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2024-11-14 04:34:33,653 INFO L87 Difference]: Start difference. First operand 241 states and 295 transitions. Second operand has 24 states, 24 states have (on average 2.75) internal successors, (66), 23 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:36,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:36,126 INFO L93 Difference]: Finished difference Result 463 states and 575 transitions. [2024-11-14 04:34:36,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-14 04:34:36,127 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.75) internal successors, (66), 23 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-14 04:34:36,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:36,129 INFO L225 Difference]: With dead ends: 463 [2024-11-14 04:34:36,129 INFO L226 Difference]: Without dead ends: 387 [2024-11-14 04:34:36,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=290, Invalid=1516, Unknown=0, NotChecked=0, Total=1806 [2024-11-14 04:34:36,131 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 419 mSDsluCounter, 2454 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 2636 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:36,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 2636 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-14 04:34:36,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-11-14 04:34:36,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 251. [2024-11-14 04:34:36,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 244 states have (on average 1.2704918032786885) internal successors, (310), 250 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:36,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 310 transitions. [2024-11-14 04:34:36,141 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 310 transitions. Word has length 66 [2024-11-14 04:34:36,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:36,141 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 310 transitions. [2024-11-14 04:34:36,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.75) internal successors, (66), 23 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:36,142 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 310 transitions. [2024-11-14 04:34:36,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-14 04:34:36,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:36,143 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:36,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-14 04:34:36,143 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:36,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:36,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1372728877, now seen corresponding path program 1 times [2024-11-14 04:34:36,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:36,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413053612] [2024-11-14 04:34:36,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:36,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:36,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:36,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:36,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413053612] [2024-11-14 04:34:36,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413053612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:36,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:36,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-14 04:34:36,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473835801] [2024-11-14 04:34:36,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:36,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 04:34:36,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:36,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 04:34:36,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-14 04:34:36,872 INFO L87 Difference]: Start difference. First operand 251 states and 310 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:37,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:37,584 INFO L93 Difference]: Finished difference Result 449 states and 566 transitions. [2024-11-14 04:34:37,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 04:34:37,585 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-14 04:34:37,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:37,586 INFO L225 Difference]: With dead ends: 449 [2024-11-14 04:34:37,586 INFO L226 Difference]: Without dead ends: 335 [2024-11-14 04:34:37,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2024-11-14 04:34:37,587 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 383 mSDsluCounter, 1740 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 1956 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:37,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 1956 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:34:37,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-11-14 04:34:37,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 209. [2024-11-14 04:34:37,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 205 states have (on average 1.2585365853658537) internal successors, (258), 208 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:37,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 258 transitions. [2024-11-14 04:34:37,595 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 258 transitions. Word has length 66 [2024-11-14 04:34:37,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:37,595 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 258 transitions. [2024-11-14 04:34:37,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:37,595 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 258 transitions. [2024-11-14 04:34:37,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-14 04:34:37,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:37,596 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:37,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-14 04:34:37,596 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:37,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:37,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1736033602, now seen corresponding path program 1 times [2024-11-14 04:34:37,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:37,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330848820] [2024-11-14 04:34:37,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:37,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:38,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:38,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:38,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330848820] [2024-11-14 04:34:38,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330848820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:38,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:38,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-14 04:34:38,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596699330] [2024-11-14 04:34:38,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:38,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 04:34:38,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:38,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 04:34:38,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-14 04:34:38,395 INFO L87 Difference]: Start difference. First operand 209 states and 258 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:39,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:39,471 INFO L93 Difference]: Finished difference Result 599 states and 762 transitions. [2024-11-14 04:34:39,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 04:34:39,472 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-14 04:34:39,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:39,474 INFO L225 Difference]: With dead ends: 599 [2024-11-14 04:34:39,474 INFO L226 Difference]: Without dead ends: 501 [2024-11-14 04:34:39,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=150, Invalid=450, Unknown=0, NotChecked=0, Total=600 [2024-11-14 04:34:39,475 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 645 mSDsluCounter, 1517 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:39,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 1728 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:34:39,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-11-14 04:34:39,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 177. [2024-11-14 04:34:39,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 175 states have (on average 1.217142857142857) internal successors, (213), 176 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:39,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 213 transitions. [2024-11-14 04:34:39,485 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 213 transitions. Word has length 67 [2024-11-14 04:34:39,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:39,485 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 213 transitions. [2024-11-14 04:34:39,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:39,486 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 213 transitions. [2024-11-14 04:34:39,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-14 04:34:39,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:39,487 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:39,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-14 04:34:39,487 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:39,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:39,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1116116258, now seen corresponding path program 1 times [2024-11-14 04:34:39,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:39,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430988043] [2024-11-14 04:34:39,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:39,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:39,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:39,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:39,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430988043] [2024-11-14 04:34:39,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430988043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:39,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:39,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-14 04:34:39,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034005636] [2024-11-14 04:34:39,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:39,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 04:34:39,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:39,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 04:34:39,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-14 04:34:39,947 INFO L87 Difference]: Start difference. First operand 177 states and 213 transitions. Second operand has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 10 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:40,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:40,782 INFO L93 Difference]: Finished difference Result 554 states and 703 transitions. [2024-11-14 04:34:40,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 04:34:40,782 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 10 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-14 04:34:40,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:40,784 INFO L225 Difference]: With dead ends: 554 [2024-11-14 04:34:40,784 INFO L226 Difference]: Without dead ends: 452 [2024-11-14 04:34:40,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=161, Invalid=439, Unknown=0, NotChecked=0, Total=600 [2024-11-14 04:34:40,786 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 1167 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:40,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1167 Valid, 466 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 04:34:40,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-11-14 04:34:40,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 185. [2024-11-14 04:34:40,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 183 states have (on average 1.2076502732240437) internal successors, (221), 184 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:40,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 221 transitions. [2024-11-14 04:34:40,800 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 221 transitions. Word has length 67 [2024-11-14 04:34:40,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:40,801 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 221 transitions. [2024-11-14 04:34:40,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 10 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:40,801 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 221 transitions. [2024-11-14 04:34:40,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-14 04:34:40,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:40,802 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:40,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-14 04:34:40,803 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:40,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:40,804 INFO L85 PathProgramCache]: Analyzing trace with hash -510768175, now seen corresponding path program 1 times [2024-11-14 04:34:40,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:40,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721693647] [2024-11-14 04:34:40,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:40,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:40,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:41,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:41,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:41,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721693647] [2024-11-14 04:34:41,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721693647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:41,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:41,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 04:34:41,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097965651] [2024-11-14 04:34:41,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:41,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:34:41,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:41,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:34:41,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:34:41,048 INFO L87 Difference]: Start difference. First operand 185 states and 221 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:41,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:41,533 INFO L93 Difference]: Finished difference Result 399 states and 495 transitions. [2024-11-14 04:34:41,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 04:34:41,534 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-14 04:34:41,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:41,535 INFO L225 Difference]: With dead ends: 399 [2024-11-14 04:34:41,536 INFO L226 Difference]: Without dead ends: 297 [2024-11-14 04:34:41,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-14 04:34:41,540 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 279 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:41,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 463 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:34:41,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-11-14 04:34:41,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 177. [2024-11-14 04:34:41,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 175 states have (on average 1.2057142857142857) internal successors, (211), 176 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:41,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 211 transitions. [2024-11-14 04:34:41,547 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 211 transitions. Word has length 68 [2024-11-14 04:34:41,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:41,548 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 211 transitions. [2024-11-14 04:34:41,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:41,548 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 211 transitions. [2024-11-14 04:34:41,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-14 04:34:41,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:41,549 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] [2024-11-14 04:34:41,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-14 04:34:41,549 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:41,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:41,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1523699975, now seen corresponding path program 1 times [2024-11-14 04:34:41,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:41,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93089550] [2024-11-14 04:34:41,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:41,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:43,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:43,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:43,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93089550] [2024-11-14 04:34:43,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93089550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:43,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:43,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-14 04:34:43,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436777934] [2024-11-14 04:34:43,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:43,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-14 04:34:43,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:43,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-14 04:34:43,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2024-11-14 04:34:43,315 INFO L87 Difference]: Start difference. First operand 177 states and 211 transitions. Second operand has 22 states, 22 states have (on average 3.1363636363636362) internal successors, (69), 22 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:45,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:45,159 INFO L93 Difference]: Finished difference Result 195 states and 232 transitions. [2024-11-14 04:34:45,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-14 04:34:45,163 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.1363636363636362) internal successors, (69), 22 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-14 04:34:45,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:45,165 INFO L225 Difference]: With dead ends: 195 [2024-11-14 04:34:45,165 INFO L226 Difference]: Without dead ends: 189 [2024-11-14 04:34:45,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=233, Invalid=1327, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 04:34:45,168 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 250 mSDsluCounter, 1413 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:45,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 1503 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 04:34:45,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-14 04:34:45,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 188. [2024-11-14 04:34:45,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 186 states have (on average 1.2096774193548387) internal successors, (225), 187 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:45,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 225 transitions. [2024-11-14 04:34:45,174 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 225 transitions. Word has length 69 [2024-11-14 04:34:45,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:45,174 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 225 transitions. [2024-11-14 04:34:45,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.1363636363636362) internal successors, (69), 22 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:45,174 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 225 transitions. [2024-11-14 04:34:45,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-14 04:34:45,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:45,175 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:45,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-14 04:34:45,176 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:45,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:45,176 INFO L85 PathProgramCache]: Analyzing trace with hash -327269785, now seen corresponding path program 1 times [2024-11-14 04:34:45,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:45,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772175646] [2024-11-14 04:34:45,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:45,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:45,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:45,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:45,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:45,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772175646] [2024-11-14 04:34:45,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772175646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:45,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:45,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-14 04:34:45,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629840869] [2024-11-14 04:34:45,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:45,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 04:34:45,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:45,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 04:34:45,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-14 04:34:45,873 INFO L87 Difference]: Start difference. First operand 188 states and 225 transitions. Second operand has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:46,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:46,844 INFO L93 Difference]: Finished difference Result 458 states and 573 transitions. [2024-11-14 04:34:46,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 04:34:46,844 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-14 04:34:46,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:46,846 INFO L225 Difference]: With dead ends: 458 [2024-11-14 04:34:46,846 INFO L226 Difference]: Without dead ends: 452 [2024-11-14 04:34:46,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2024-11-14 04:34:46,848 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 721 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:46,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [721 Valid, 1237 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:34:46,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-11-14 04:34:46,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 171. [2024-11-14 04:34:46,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 170 states have (on average 1.2) internal successors, (204), 170 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:46,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 204 transitions. [2024-11-14 04:34:46,856 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 204 transitions. Word has length 70 [2024-11-14 04:34:46,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:46,856 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 204 transitions. [2024-11-14 04:34:46,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:46,857 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 204 transitions. [2024-11-14 04:34:46,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 04:34:46,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:46,858 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] [2024-11-14 04:34:46,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-14 04:34:46,858 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:46,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:46,859 INFO L85 PathProgramCache]: Analyzing trace with hash -646385871, now seen corresponding path program 1 times [2024-11-14 04:34:46,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:46,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483265288] [2024-11-14 04:34:46,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:46,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:46,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:46,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:46,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:46,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483265288] [2024-11-14 04:34:46,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483265288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:46,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:46,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:34:46,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499374529] [2024-11-14 04:34:46,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:46,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:34:46,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:46,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:34:46,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:34:46,995 INFO L87 Difference]: Start difference. First operand 171 states and 204 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:47,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:47,034 INFO L93 Difference]: Finished difference Result 252 states and 311 transitions. [2024-11-14 04:34:47,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:34:47,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-14 04:34:47,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:47,035 INFO L225 Difference]: With dead ends: 252 [2024-11-14 04:34:47,035 INFO L226 Difference]: Without dead ends: 215 [2024-11-14 04:34:47,036 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 [2024-11-14 04:34:47,037 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 54 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:47,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 243 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:34:47,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-14 04:34:47,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 205. [2024-11-14 04:34:47,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 204 states have (on average 1.2156862745098038) internal successors, (248), 204 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:47,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 248 transitions. [2024-11-14 04:34:47,045 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 248 transitions. Word has length 84 [2024-11-14 04:34:47,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:47,045 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 248 transitions. [2024-11-14 04:34:47,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:47,045 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 248 transitions. [2024-11-14 04:34:47,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-14 04:34:47,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:47,046 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:47,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-14 04:34:47,047 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:47,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:47,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1526245917, now seen corresponding path program 1 times [2024-11-14 04:34:47,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:47,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502804185] [2024-11-14 04:34:47,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:47,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:47,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:47,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:47,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:47,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502804185] [2024-11-14 04:34:47,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502804185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:47,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:47,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:34:47,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478232458] [2024-11-14 04:34:47,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:47,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:34:47,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:47,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:34:47,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:34:47,189 INFO L87 Difference]: Start difference. First operand 205 states and 248 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:47,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:47,222 INFO L93 Difference]: Finished difference Result 411 states and 522 transitions. [2024-11-14 04:34:47,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:34:47,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2024-11-14 04:34:47,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:47,224 INFO L225 Difference]: With dead ends: 411 [2024-11-14 04:34:47,224 INFO L226 Difference]: Without dead ends: 308 [2024-11-14 04:34:47,225 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 [2024-11-14 04:34:47,225 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 47 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:47,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 243 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:34:47,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-11-14 04:34:47,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 294. [2024-11-14 04:34:47,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 293 states have (on average 1.2491467576791808) internal successors, (366), 293 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:47,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 366 transitions. [2024-11-14 04:34:47,235 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 366 transitions. Word has length 87 [2024-11-14 04:34:47,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:47,235 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 366 transitions. [2024-11-14 04:34:47,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:47,235 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 366 transitions. [2024-11-14 04:34:47,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-14 04:34:47,236 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:47,240 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:47,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-14 04:34:47,241 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:47,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:47,241 INFO L85 PathProgramCache]: Analyzing trace with hash 445440857, now seen corresponding path program 1 times [2024-11-14 04:34:47,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:47,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427250407] [2024-11-14 04:34:47,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:47,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:47,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:47,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:47,385 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:47,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427250407] [2024-11-14 04:34:47,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427250407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:47,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:47,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:34:47,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986184583] [2024-11-14 04:34:47,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:47,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:34:47,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:47,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:34:47,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:34:47,388 INFO L87 Difference]: Start difference. First operand 294 states and 366 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:47,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:47,425 INFO L93 Difference]: Finished difference Result 678 states and 876 transitions. [2024-11-14 04:34:47,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:34:47,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-14 04:34:47,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:47,428 INFO L225 Difference]: With dead ends: 678 [2024-11-14 04:34:47,428 INFO L226 Difference]: Without dead ends: 486 [2024-11-14 04:34:47,428 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 [2024-11-14 04:34:47,429 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 40 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:47,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 243 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:34:47,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-11-14 04:34:47,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 460. [2024-11-14 04:34:47,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 459 states have (on average 1.2723311546840959) internal successors, (584), 459 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:47,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 584 transitions. [2024-11-14 04:34:47,441 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 584 transitions. Word has length 90 [2024-11-14 04:34:47,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:47,442 INFO L471 AbstractCegarLoop]: Abstraction has 460 states and 584 transitions. [2024-11-14 04:34:47,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:47,442 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 584 transitions. [2024-11-14 04:34:47,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-14 04:34:47,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:47,443 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:47,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-14 04:34:47,443 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:47,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:47,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1365580448, now seen corresponding path program 1 times [2024-11-14 04:34:47,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:47,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541812251] [2024-11-14 04:34:47,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:47,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:47,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:47,576 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:47,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541812251] [2024-11-14 04:34:47,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541812251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:47,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:47,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:34:47,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020668827] [2024-11-14 04:34:47,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:47,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:34:47,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:47,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:34:47,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:34:47,578 INFO L87 Difference]: Start difference. First operand 460 states and 584 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:47,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:47,614 INFO L93 Difference]: Finished difference Result 1176 states and 1530 transitions. [2024-11-14 04:34:47,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:34:47,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-14 04:34:47,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:47,617 INFO L225 Difference]: With dead ends: 1176 [2024-11-14 04:34:47,617 INFO L226 Difference]: Without dead ends: 818 [2024-11-14 04:34:47,618 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 [2024-11-14 04:34:47,618 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 30 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:47,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 243 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:34:47,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2024-11-14 04:34:47,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 768. [2024-11-14 04:34:47,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768 states, 767 states have (on average 1.2829204693611473) internal successors, (984), 767 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:47,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 984 transitions. [2024-11-14 04:34:47,640 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 984 transitions. Word has length 93 [2024-11-14 04:34:47,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:47,641 INFO L471 AbstractCegarLoop]: Abstraction has 768 states and 984 transitions. [2024-11-14 04:34:47,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:47,641 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 984 transitions. [2024-11-14 04:34:47,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-14 04:34:47,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:47,642 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:47,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-14 04:34:47,642 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:47,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:47,643 INFO L85 PathProgramCache]: Analyzing trace with hash 795640899, now seen corresponding path program 1 times [2024-11-14 04:34:47,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:47,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995993805] [2024-11-14 04:34:47,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:47,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:47,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:47,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:47,778 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:47,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995993805] [2024-11-14 04:34:47,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995993805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:47,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:47,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 04:34:47,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551163964] [2024-11-14 04:34:47,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:47,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:34:47,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:47,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:34:47,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:34:47,779 INFO L87 Difference]: Start difference. First operand 768 states and 984 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:47,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:47,977 INFO L93 Difference]: Finished difference Result 2946 states and 3826 transitions. [2024-11-14 04:34:47,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 04:34:47,978 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-11-14 04:34:47,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:47,985 INFO L225 Difference]: With dead ends: 2946 [2024-11-14 04:34:47,985 INFO L226 Difference]: Without dead ends: 2280 [2024-11-14 04:34:47,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-14 04:34:47,987 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 534 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:47,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 781 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:34:47,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2280 states. [2024-11-14 04:34:48,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2280 to 1146. [2024-11-14 04:34:48,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 1145 states have (on average 1.273362445414847) internal successors, (1458), 1145 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:48,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1458 transitions. [2024-11-14 04:34:48,056 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1458 transitions. Word has length 96 [2024-11-14 04:34:48,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:48,056 INFO L471 AbstractCegarLoop]: Abstraction has 1146 states and 1458 transitions. [2024-11-14 04:34:48,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:48,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1458 transitions. [2024-11-14 04:34:48,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-14 04:34:48,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:48,058 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:48,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-14 04:34:48,058 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:48,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:48,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1184955644, now seen corresponding path program 1 times [2024-11-14 04:34:48,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:48,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728352278] [2024-11-14 04:34:48,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:48,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:48,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:48,371 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:48,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728352278] [2024-11-14 04:34:48,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728352278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:48,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:48,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 04:34:48,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874218311] [2024-11-14 04:34:48,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:48,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:34:48,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:48,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:34:48,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:34:48,373 INFO L87 Difference]: Start difference. First operand 1146 states and 1458 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:48,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:48,509 INFO L93 Difference]: Finished difference Result 2192 states and 2806 transitions. [2024-11-14 04:34:48,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 04:34:48,511 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-14 04:34:48,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:48,515 INFO L225 Difference]: With dead ends: 2192 [2024-11-14 04:34:48,515 INFO L226 Difference]: Without dead ends: 1148 [2024-11-14 04:34:48,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:34:48,518 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 128 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:48,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 251 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:34:48,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2024-11-14 04:34:48,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 1146. [2024-11-14 04:34:48,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 1145 states have (on average 1.2716157205240175) internal successors, (1456), 1145 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:48,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1456 transitions. [2024-11-14 04:34:48,545 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1456 transitions. Word has length 98 [2024-11-14 04:34:48,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:48,545 INFO L471 AbstractCegarLoop]: Abstraction has 1146 states and 1456 transitions. [2024-11-14 04:34:48,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:48,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1456 transitions. [2024-11-14 04:34:48,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-14 04:34:48,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:48,547 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:48,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-14 04:34:48,548 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:48,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:48,549 INFO L85 PathProgramCache]: Analyzing trace with hash -776759362, now seen corresponding path program 1 times [2024-11-14 04:34:48,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:48,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678374218] [2024-11-14 04:34:48,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:48,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:48,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:48,633 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:48,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678374218] [2024-11-14 04:34:48,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678374218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:48,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:48,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:34:48,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993362706] [2024-11-14 04:34:48,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:48,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:34:48,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:48,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:34:48,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:34:48,635 INFO L87 Difference]: Start difference. First operand 1146 states and 1456 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:48,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:48,682 INFO L93 Difference]: Finished difference Result 2456 states and 3146 transitions. [2024-11-14 04:34:48,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:34:48,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-14 04:34:48,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:48,687 INFO L225 Difference]: With dead ends: 2456 [2024-11-14 04:34:48,688 INFO L226 Difference]: Without dead ends: 1412 [2024-11-14 04:34:48,689 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 [2024-11-14 04:34:48,689 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 66 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:48,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 187 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:34:48,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2024-11-14 04:34:48,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1410. [2024-11-14 04:34:48,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1409 states have (on average 1.2647267565649396) internal successors, (1782), 1409 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:48,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 1782 transitions. [2024-11-14 04:34:48,727 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 1782 transitions. Word has length 98 [2024-11-14 04:34:48,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:48,728 INFO L471 AbstractCegarLoop]: Abstraction has 1410 states and 1782 transitions. [2024-11-14 04:34:48,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:48,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 1782 transitions. [2024-11-14 04:34:48,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-14 04:34:48,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:48,731 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:48,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-14 04:34:48,732 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:48,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:48,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1255564868, now seen corresponding path program 1 times [2024-11-14 04:34:48,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:48,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119910461] [2024-11-14 04:34:48,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:48,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:49,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:34:49,085 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:49,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119910461] [2024-11-14 04:34:49,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119910461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:49,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:49,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 04:34:49,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943451397] [2024-11-14 04:34:49,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:49,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 04:34:49,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:49,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 04:34:49,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:34:49,086 INFO L87 Difference]: Start difference. First operand 1410 states and 1782 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:49,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:49,227 INFO L93 Difference]: Finished difference Result 1414 states and 1784 transitions. [2024-11-14 04:34:49,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 04:34:49,227 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-14 04:34:49,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:49,232 INFO L225 Difference]: With dead ends: 1414 [2024-11-14 04:34:49,232 INFO L226 Difference]: Without dead ends: 1412 [2024-11-14 04:34:49,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-14 04:34:49,233 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 67 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:49,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 636 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:34:49,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2024-11-14 04:34:49,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1410. [2024-11-14 04:34:49,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1409 states have (on average 1.2476933995741661) internal successors, (1758), 1409 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:49,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 1758 transitions. [2024-11-14 04:34:49,263 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 1758 transitions. Word has length 99 [2024-11-14 04:34:49,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:49,263 INFO L471 AbstractCegarLoop]: Abstraction has 1410 states and 1758 transitions. [2024-11-14 04:34:49,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:49,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 1758 transitions. [2024-11-14 04:34:49,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-14 04:34:49,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:49,265 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:49,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-14 04:34:49,266 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:49,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:49,266 INFO L85 PathProgramCache]: Analyzing trace with hash 2133397746, now seen corresponding path program 1 times [2024-11-14 04:34:49,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:49,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520095823] [2024-11-14 04:34:49,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:49,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:49,813 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-14 04:34:49,814 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:49,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520095823] [2024-11-14 04:34:49,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520095823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:49,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:49,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-14 04:34:49,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821979139] [2024-11-14 04:34:49,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:49,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 04:34:49,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:49,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 04:34:49,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-14 04:34:49,816 INFO L87 Difference]: Start difference. First operand 1410 states and 1758 transitions. Second operand has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:50,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:50,600 INFO L93 Difference]: Finished difference Result 3733 states and 4659 transitions. [2024-11-14 04:34:50,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-14 04:34:50,601 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2024-11-14 04:34:50,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:50,608 INFO L225 Difference]: With dead ends: 3733 [2024-11-14 04:34:50,608 INFO L226 Difference]: Without dead ends: 2410 [2024-11-14 04:34:50,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=186, Invalid=516, Unknown=0, NotChecked=0, Total=702 [2024-11-14 04:34:50,611 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 1137 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:50,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1137 Valid, 433 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 04:34:50,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2410 states. [2024-11-14 04:34:50,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2410 to 1418. [2024-11-14 04:34:50,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1418 states, 1417 states have (on average 1.2462949894142554) internal successors, (1766), 1417 states have internal predecessors, (1766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:50,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 1766 transitions. [2024-11-14 04:34:50,659 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 1766 transitions. Word has length 115 [2024-11-14 04:34:50,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:50,659 INFO L471 AbstractCegarLoop]: Abstraction has 1418 states and 1766 transitions. [2024-11-14 04:34:50,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:50,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 1766 transitions. [2024-11-14 04:34:50,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-14 04:34:50,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:50,662 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:50,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-14 04:34:50,663 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:50,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:50,663 INFO L85 PathProgramCache]: Analyzing trace with hash -733155799, now seen corresponding path program 1 times [2024-11-14 04:34:50,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:50,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005793341] [2024-11-14 04:34:50,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:50,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:50,985 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-14 04:34:50,985 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:50,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005793341] [2024-11-14 04:34:50,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005793341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:50,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:50,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 04:34:50,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081135896] [2024-11-14 04:34:50,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:50,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:34:50,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:50,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:34:50,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:34:50,987 INFO L87 Difference]: Start difference. First operand 1418 states and 1766 transitions. Second operand has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:51,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:51,396 INFO L93 Difference]: Finished difference Result 3537 states and 4422 transitions. [2024-11-14 04:34:51,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 04:34:51,397 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 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 116 [2024-11-14 04:34:51,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:51,403 INFO L225 Difference]: With dead ends: 3537 [2024-11-14 04:34:51,403 INFO L226 Difference]: Without dead ends: 2214 [2024-11-14 04:34:51,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-14 04:34:51,405 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 375 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:51,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 403 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:34:51,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2024-11-14 04:34:51,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 1410. [2024-11-14 04:34:51,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1409 states have (on average 1.2462739531582683) internal successors, (1756), 1409 states have internal predecessors, (1756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:51,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 1756 transitions. [2024-11-14 04:34:51,443 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 1756 transitions. Word has length 116 [2024-11-14 04:34:51,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:51,443 INFO L471 AbstractCegarLoop]: Abstraction has 1410 states and 1756 transitions. [2024-11-14 04:34:51,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:51,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 1756 transitions. [2024-11-14 04:34:51,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-14 04:34:51,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:51,446 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:51,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-14 04:34:51,446 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:51,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:51,446 INFO L85 PathProgramCache]: Analyzing trace with hash -250941641, now seen corresponding path program 1 times [2024-11-14 04:34:51,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:51,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647984959] [2024-11-14 04:34:51,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:51,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:52,904 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-14 04:34:52,905 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:34:52,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647984959] [2024-11-14 04:34:52,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647984959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:52,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:52,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-14 04:34:52,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274795131] [2024-11-14 04:34:52,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:52,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-14 04:34:52,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:34:52,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-14 04:34:52,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2024-11-14 04:34:52,907 INFO L87 Difference]: Start difference. First operand 1410 states and 1756 transitions. Second operand has 21 states, 21 states have (on average 5.142857142857143) internal successors, (108), 21 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:54,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:54,057 INFO L93 Difference]: Finished difference Result 2739 states and 3426 transitions. [2024-11-14 04:34:54,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-14 04:34:54,058 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.142857142857143) internal successors, (108), 21 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2024-11-14 04:34:54,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:54,062 INFO L225 Difference]: With dead ends: 2739 [2024-11-14 04:34:54,062 INFO L226 Difference]: Without dead ends: 1421 [2024-11-14 04:34:54,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=230, Invalid=1102, Unknown=0, NotChecked=0, Total=1332 [2024-11-14 04:34:54,064 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 279 mSDsluCounter, 1069 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:54,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 1153 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 04:34:54,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2024-11-14 04:34:54,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1420. [2024-11-14 04:34:54,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 1419 states have (on average 1.245243128964059) internal successors, (1767), 1419 states have internal predecessors, (1767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:54,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 1767 transitions. [2024-11-14 04:34:54,098 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 1767 transitions. Word has length 117 [2024-11-14 04:34:54,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:54,098 INFO L471 AbstractCegarLoop]: Abstraction has 1420 states and 1767 transitions. [2024-11-14 04:34:54,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.142857142857143) internal successors, (108), 21 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:34:54,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 1767 transitions. [2024-11-14 04:34:54,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-14 04:34:54,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:54,100 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:54,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-14 04:34:54,101 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-11-14 04:34:54,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:54,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1958010729, now seen corresponding path program 1 times [2024-11-14 04:34:54,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:34:54,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588665065] [2024-11-14 04:34:54,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:54,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:34:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:35:00,134 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:35:00,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:35:00,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588665065] [2024-11-14 04:35:00,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588665065] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:35:00,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457639369] [2024-11-14 04:35:00,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:35:00,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:35:00,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a2fcef-eb81-433d-b94e-01ead2340e74/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:35:00,138 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a2fcef-eb81-433d-b94e-01ead2340e74/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:35:00,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a2fcef-eb81-433d-b94e-01ead2340e74/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:35:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:35:00,487 INFO L255 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 74 conjuncts are in the unsatisfiable core [2024-11-14 04:35:00,501 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:35:11,975 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:35:11,976 INFO L311 TraceCheckSpWp]: Computing backward predicates...