./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --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 2b77f3a84818afa598b0eb39254acb84b353143275f6b4c2e95d15ee5488d008 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:19:50,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:19:50,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:19:51,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:19:51,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:19:51,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:19:51,005 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:19:51,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:19:51,013 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:19:51,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:19:51,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:19:51,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:19:51,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:19:51,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:19:51,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:19:51,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:19:51,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:19:51,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:19:51,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:19:51,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:19:51,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:19:51,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:19:51,049 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:19:51,050 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:19:51,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:19:51,061 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:19:51,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:19:51,064 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:19:51,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:19:51,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:19:51,067 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:19:51,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:19:51,070 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:19:51,071 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:19:51,072 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:19:51,072 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:19:51,073 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:19:51,073 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:19:51,073 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:19:51,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:19:51,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:19:51,076 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 23:19:51,117 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:19:51,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:19:51,122 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:19:51,122 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:19:51,122 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:19:51,123 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:19:51,123 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:19:51,123 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:19:51,129 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:19:51,130 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:19:51,131 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:19:51,131 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:19:51,131 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:19:51,132 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:19:51,132 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:19:51,132 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:19:51,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:19:51,133 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:19:51,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:19:51,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:19:51,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:19:51,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:19:51,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:19:51,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:19:51,134 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:19:51,135 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:19:51,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:19:51,135 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:19:51,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:19:51,138 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:19:51,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:19:51,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:19:51,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:19:51,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:19:51,139 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:19:51,139 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:19:51,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:19:51,140 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:19:51,140 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:19:51,140 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:19:51,140 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b77f3a84818afa598b0eb39254acb84b353143275f6b4c2e95d15ee5488d008 [2021-11-12 23:19:51,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:19:51,466 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:19:51,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:19:51,469 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:19:51,470 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:19:51,471 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2021-11-12 23:19:51,567 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/bin/utaipan-vmNK8stdcF/data/d6f0e827a/3a3f58ef9fd14f92afb8d86ebe97ecc5/FLAG81ae06e22 [2021-11-12 23:19:52,422 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:19:52,423 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2021-11-12 23:19:52,469 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/bin/utaipan-vmNK8stdcF/data/d6f0e827a/3a3f58ef9fd14f92afb8d86ebe97ecc5/FLAG81ae06e22 [2021-11-12 23:19:52,921 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/bin/utaipan-vmNK8stdcF/data/d6f0e827a/3a3f58ef9fd14f92afb8d86ebe97ecc5 [2021-11-12 23:19:52,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:19:52,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:19:52,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:19:52,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:19:52,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:19:52,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:19:52" (1/1) ... [2021-11-12 23:19:52,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aacf955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:19:52, skipping insertion in model container [2021-11-12 23:19:52,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:19:52" (1/1) ... [2021-11-12 23:19:52,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:19:53,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:19:53,870 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16849,16862] [2021-11-12 23:19:53,949 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21942,21955] [2021-11-12 23:19:53,965 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23299,23312] [2021-11-12 23:19:53,974 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24107,24120] [2021-11-12 23:19:53,988 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25792,25805] [2021-11-12 23:19:53,996 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26600,26613] [2021-11-12 23:19:54,006 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27736,27749] [2021-11-12 23:19:54,027 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[30390,30403] [2021-11-12 23:19:54,035 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31201,31214] [2021-11-12 23:19:54,054 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32340,32353] [2021-11-12 23:19:54,069 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34445,34458] [2021-11-12 23:19:54,098 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[38533,38546] [2021-11-12 23:19:54,106 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[39344,39357] [2021-11-12 23:19:54,115 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[40483,40496] [2021-11-12 23:19:54,130 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[42588,42601] [2021-11-12 23:19:54,155 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[46127,46140] [2021-11-12 23:19:54,200 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[52573,52586] [2021-11-12 23:19:54,208 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[53384,53397] [2021-11-12 23:19:54,217 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[54527,54540] [2021-11-12 23:19:54,233 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[56636,56649] [2021-11-12 23:19:54,259 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60424,60437] [2021-11-12 23:19:54,303 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[67072,67085] [2021-11-12 23:19:54,386 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[79206,79219] [2021-11-12 23:19:54,404 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[80017,80030] [2021-11-12 23:19:54,413 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[81156,81169] [2021-11-12 23:19:54,426 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[83261,83274] [2021-11-12 23:19:54,451 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[86800,86813] [2021-11-12 23:19:54,492 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[92697,92710] [2021-11-12 23:19:54,555 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[102772,102785] [2021-11-12 23:19:55,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:19:55,703 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:19:55,894 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16849,16862] [2021-11-12 23:19:55,934 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21942,21955] [2021-11-12 23:19:55,944 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23299,23312] [2021-11-12 23:19:55,951 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24107,24120] [2021-11-12 23:19:55,963 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25792,25805] [2021-11-12 23:19:55,970 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26600,26613] [2021-11-12 23:19:55,982 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27736,27749] [2021-11-12 23:19:56,024 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[30390,30403] [2021-11-12 23:19:56,030 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31201,31214] [2021-11-12 23:19:56,038 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32340,32353] [2021-11-12 23:19:56,051 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34445,34458] [2021-11-12 23:19:56,073 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[38533,38546] [2021-11-12 23:19:56,079 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[39344,39357] [2021-11-12 23:19:56,086 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[40483,40496] [2021-11-12 23:19:56,099 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[42588,42601] [2021-11-12 23:19:56,119 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[46127,46140] [2021-11-12 23:19:56,151 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[52573,52586] [2021-11-12 23:19:56,158 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[53384,53397] [2021-11-12 23:19:56,167 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[54527,54540] [2021-11-12 23:19:56,180 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[56636,56649] [2021-11-12 23:19:56,201 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60424,60437] [2021-11-12 23:19:56,236 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[67072,67085] [2021-11-12 23:19:56,308 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[79206,79219] [2021-11-12 23:19:56,315 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[80017,80030] [2021-11-12 23:19:56,323 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[81156,81169] [2021-11-12 23:19:56,336 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[83261,83274] [2021-11-12 23:19:56,356 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[86800,86813] [2021-11-12 23:19:56,389 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[92697,92710] [2021-11-12 23:19:56,436 WARN L228 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_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[102772,102785] [2021-11-12 23:19:57,215 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:19:57,267 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:19:57,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:19:57 WrapperNode [2021-11-12 23:19:57,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:19:57,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:19:57,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:19:57,269 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:19:57,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:19:57" (1/1) ... [2021-11-12 23:19:57,369 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:19:57" (1/1) ... [2021-11-12 23:19:57,564 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:19:57,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:19:57,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:19:57,566 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:19:57,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:19:57" (1/1) ... [2021-11-12 23:19:57,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:19:57" (1/1) ... [2021-11-12 23:19:57,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:19:57" (1/1) ... [2021-11-12 23:19:57,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:19:57" (1/1) ... [2021-11-12 23:19:57,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:19:57" (1/1) ... [2021-11-12 23:19:57,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:19:57" (1/1) ... [2021-11-12 23:19:58,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:19:57" (1/1) ... [2021-11-12 23:19:58,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:19:58,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:19:58,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:19:58,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:19:58,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:19:57" (1/1) ... [2021-11-12 23:19:58,125 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:19:58,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:19:58,160 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:19:58,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e7b2e1b-31b8-47a1-b44d-61c1d1efab4b/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:19:58,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:19:58,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 23:19:58,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:19:58,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:20:06,052 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:20:06,053 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 23:20:06,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:20:06 BoogieIcfgContainer [2021-11-12 23:20:06,066 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:20:06,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:20:06,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:20:06,075 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:20:06,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:19:52" (1/3) ... [2021-11-12 23:20:06,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f28576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:20:06, skipping insertion in model container [2021-11-12 23:20:06,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:19:57" (2/3) ... [2021-11-12 23:20:06,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f28576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:20:06, skipping insertion in model container [2021-11-12 23:20:06,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:20:06" (3/3) ... [2021-11-12 23:20:06,080 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2021-11-12 23:20:06,091 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:20:06,091 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-11-12 23:20:06,180 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:20:06,190 INFO L339 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, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:20:06,191 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-11-12 23:20:06,260 INFO L276 IsEmpty]: Start isEmpty. Operand has 1987 states, 1957 states have (on average 1.8727644353602453) internal successors, (3665), 1986 states have internal predecessors, (3665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:06,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-12 23:20:06,312 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:20:06,313 INFO L514 BasicCegarLoop]: 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] [2021-11-12 23:20:06,314 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:20:06,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:20:06,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1135640583, now seen corresponding path program 1 times [2021-11-12 23:20:06,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:20:06,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631850340] [2021-11-12 23:20:06,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:20:06,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:20:06,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:20:07,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:20:07,110 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:20:07,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631850340] [2021-11-12 23:20:07,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631850340] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:20:07,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:20:07,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 23:20:07,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583942714] [2021-11-12 23:20:07,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:20:07,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:20:07,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:20:07,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:20:07,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:20:07,176 INFO L87 Difference]: Start difference. First operand has 1987 states, 1957 states have (on average 1.8727644353602453) internal successors, (3665), 1986 states have internal predecessors, (3665), 0 states have call successors, (0), 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 19.8) internal successors, (99), 4 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) [2021-11-12 23:20:09,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:20:09,128 INFO L93 Difference]: Finished difference Result 2905 states and 5187 transitions. [2021-11-12 23:20:09,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:20:09,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 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 [2021-11-12 23:20:09,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:20:09,166 INFO L225 Difference]: With dead ends: 2905 [2021-11-12 23:20:09,166 INFO L226 Difference]: Without dead ends: 1485 [2021-11-12 23:20:09,179 INFO L932 BasicCegarLoop]: 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 [2021-11-12 23:20:09,184 INFO L933 BasicCegarLoop]: 1739 mSDtfsCounter, 7777 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1353.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7777 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.64ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1640.32ms IncrementalHoareTripleChecker+Time [2021-11-12 23:20:09,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7777 Valid, 1779 Invalid, 920 Unknown, 0 Unchecked, 46.64ms Time], IncrementalHoareTripleChecker [19 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 1640.32ms Time] [2021-11-12 23:20:09,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2021-11-12 23:20:09,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1485. [2021-11-12 23:20:09,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1485 states, 1456 states have (on average 1.3070054945054945) internal successors, (1903), 1484 states have internal predecessors, (1903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:09,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 1903 transitions. [2021-11-12 23:20:09,340 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 1903 transitions. Word has length 99 [2021-11-12 23:20:09,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:20:09,341 INFO L470 AbstractCegarLoop]: Abstraction has 1485 states and 1903 transitions. [2021-11-12 23:20:09,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 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) [2021-11-12 23:20:09,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 1903 transitions. [2021-11-12 23:20:09,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-12 23:20:09,350 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:20:09,350 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:20:09,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 23:20:09,351 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:20:09,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:20:09,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1968753033, now seen corresponding path program 1 times [2021-11-12 23:20:09,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:20:09,353 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780283789] [2021-11-12 23:20:09,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:20:09,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:20:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:20:09,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:20:09,580 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:20:09,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780283789] [2021-11-12 23:20:09,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780283789] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:20:09,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:20:09,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 23:20:09,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7452317] [2021-11-12 23:20:09,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:20:09,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:20:09,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:20:09,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:20:09,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:20:09,584 INFO L87 Difference]: Start difference. First operand 1485 states and 1903 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:10,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:20:10,940 INFO L93 Difference]: Finished difference Result 2397 states and 3170 transitions. [2021-11-12 23:20:10,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:20:10,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-11-12 23:20:10,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:20:10,951 INFO L225 Difference]: With dead ends: 2397 [2021-11-12 23:20:10,951 INFO L226 Difference]: Without dead ends: 1277 [2021-11-12 23:20:10,954 INFO L932 BasicCegarLoop]: 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 [2021-11-12 23:20:10,956 INFO L933 BasicCegarLoop]: 825 mSDtfsCounter, 4777 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 980.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4777 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.54ms SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1199.10ms IncrementalHoareTripleChecker+Time [2021-11-12 23:20:10,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4777 Valid, 869 Invalid, 954 Unknown, 0 Unchecked, 19.54ms Time], IncrementalHoareTripleChecker [115 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 1199.10ms Time] [2021-11-12 23:20:10,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2021-11-12 23:20:11,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1277. [2021-11-12 23:20:11,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1277 states, 1248 states have (on average 1.3317307692307692) internal successors, (1662), 1276 states have internal predecessors, (1662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:11,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 1662 transitions. [2021-11-12 23:20:11,022 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 1662 transitions. Word has length 100 [2021-11-12 23:20:11,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:20:11,023 INFO L470 AbstractCegarLoop]: Abstraction has 1277 states and 1662 transitions. [2021-11-12 23:20:11,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:11,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 1662 transitions. [2021-11-12 23:20:11,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-12 23:20:11,029 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:20:11,029 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:20:11,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-12 23:20:11,030 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:20:11,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:20:11,031 INFO L85 PathProgramCache]: Analyzing trace with hash -703352954, now seen corresponding path program 1 times [2021-11-12 23:20:11,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:20:11,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956633704] [2021-11-12 23:20:11,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:20:11,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:20:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:20:11,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:20:11,191 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:20:11,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956633704] [2021-11-12 23:20:11,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956633704] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:20:11,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:20:11,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 23:20:11,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821604753] [2021-11-12 23:20:11,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:20:11,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:20:11,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:20:11,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:20:11,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:20:11,195 INFO L87 Difference]: Start difference. First operand 1277 states and 1662 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:12,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:20:12,366 INFO L93 Difference]: Finished difference Result 2189 states and 2928 transitions. [2021-11-12 23:20:12,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:20:12,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-11-12 23:20:12,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:20:12,375 INFO L225 Difference]: With dead ends: 2189 [2021-11-12 23:20:12,376 INFO L226 Difference]: Without dead ends: 1137 [2021-11-12 23:20:12,378 INFO L932 BasicCegarLoop]: 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 [2021-11-12 23:20:12,380 INFO L933 BasicCegarLoop]: 798 mSDtfsCounter, 4398 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 784.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4398 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.74ms SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 974.78ms IncrementalHoareTripleChecker+Time [2021-11-12 23:20:12,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4398 Valid, 826 Invalid, 740 Unknown, 0 Unchecked, 14.74ms Time], IncrementalHoareTripleChecker [31 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 974.78ms Time] [2021-11-12 23:20:12,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2021-11-12 23:20:12,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 1137. [2021-11-12 23:20:12,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1137 states, 1108 states have (on average 1.358303249097473) internal successors, (1505), 1136 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:12,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1505 transitions. [2021-11-12 23:20:12,446 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1505 transitions. Word has length 101 [2021-11-12 23:20:12,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:20:12,447 INFO L470 AbstractCegarLoop]: Abstraction has 1137 states and 1505 transitions. [2021-11-12 23:20:12,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:12,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1505 transitions. [2021-11-12 23:20:12,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-12 23:20:12,452 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:20:12,452 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:20:12,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-12 23:20:12,453 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:20:12,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:20:12,454 INFO L85 PathProgramCache]: Analyzing trace with hash 472316096, now seen corresponding path program 1 times [2021-11-12 23:20:12,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:20:12,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407877531] [2021-11-12 23:20:12,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:20:12,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:20:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:20:12,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:20:12,624 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:20:12,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407877531] [2021-11-12 23:20:12,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407877531] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:20:12,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:20:12,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 23:20:12,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361566680] [2021-11-12 23:20:12,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:20:12,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:20:12,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:20:12,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:20:12,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:20:12,628 INFO L87 Difference]: Start difference. First operand 1137 states and 1505 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:13,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:20:13,885 INFO L93 Difference]: Finished difference Result 2049 states and 2770 transitions. [2021-11-12 23:20:13,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:20:13,886 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2021-11-12 23:20:13,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:20:13,893 INFO L225 Difference]: With dead ends: 2049 [2021-11-12 23:20:13,894 INFO L226 Difference]: Without dead ends: 1097 [2021-11-12 23:20:13,896 INFO L932 BasicCegarLoop]: 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 [2021-11-12 23:20:13,897 INFO L933 BasicCegarLoop]: 606 mSDtfsCounter, 4054 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 886.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4054 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 1052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.10ms SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1121.11ms IncrementalHoareTripleChecker+Time [2021-11-12 23:20:13,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4054 Valid, 658 Invalid, 1052 Unknown, 0 Unchecked, 11.10ms Time], IncrementalHoareTripleChecker [200 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 1121.11ms Time] [2021-11-12 23:20:13,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2021-11-12 23:20:13,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1097. [2021-11-12 23:20:13,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1097 states, 1068 states have (on average 1.3632958801498127) internal successors, (1456), 1096 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) [2021-11-12 23:20:13,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1456 transitions. [2021-11-12 23:20:13,961 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1456 transitions. Word has length 102 [2021-11-12 23:20:13,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:20:13,962 INFO L470 AbstractCegarLoop]: Abstraction has 1097 states and 1456 transitions. [2021-11-12 23:20:13,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:13,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1456 transitions. [2021-11-12 23:20:13,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-12 23:20:13,966 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:20:13,967 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:20:13,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-12 23:20:13,967 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:20:13,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:20:13,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1771013563, now seen corresponding path program 1 times [2021-11-12 23:20:13,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:20:13,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098420520] [2021-11-12 23:20:13,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:20:13,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:20:14,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:20:14,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:20:14,081 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:20:14,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098420520] [2021-11-12 23:20:14,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098420520] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:20:14,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:20:14,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 23:20:14,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679075529] [2021-11-12 23:20:14,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:20:14,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:20:14,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:20:14,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:20:14,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:20:14,085 INFO L87 Difference]: Start difference. First operand 1097 states and 1456 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:14,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:20:14,903 INFO L93 Difference]: Finished difference Result 2009 states and 2720 transitions. [2021-11-12 23:20:14,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:20:14,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2021-11-12 23:20:14,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:20:14,911 INFO L225 Difference]: With dead ends: 2009 [2021-11-12 23:20:14,911 INFO L226 Difference]: Without dead ends: 1035 [2021-11-12 23:20:14,913 INFO L932 BasicCegarLoop]: 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 [2021-11-12 23:20:14,914 INFO L933 BasicCegarLoop]: 742 mSDtfsCounter, 4089 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 561.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4089 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.58ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 705.38ms IncrementalHoareTripleChecker+Time [2021-11-12 23:20:14,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4089 Valid, 754 Invalid, 660 Unknown, 0 Unchecked, 8.58ms Time], IncrementalHoareTripleChecker [11 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 705.38ms Time] [2021-11-12 23:20:14,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2021-11-12 23:20:14,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 1035. [2021-11-12 23:20:14,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 1006 states have (on average 1.3807157057654076) internal successors, (1389), 1034 states have internal predecessors, (1389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:14,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1389 transitions. [2021-11-12 23:20:14,972 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1389 transitions. Word has length 103 [2021-11-12 23:20:14,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:20:14,972 INFO L470 AbstractCegarLoop]: Abstraction has 1035 states and 1389 transitions. [2021-11-12 23:20:14,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:14,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1389 transitions. [2021-11-12 23:20:14,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-12 23:20:14,976 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:20:14,976 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:20:14,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-12 23:20:14,977 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:20:14,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:20:14,977 INFO L85 PathProgramCache]: Analyzing trace with hash -54343083, now seen corresponding path program 1 times [2021-11-12 23:20:14,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:20:14,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770611372] [2021-11-12 23:20:14,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:20:14,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:20:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:20:15,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:20:15,129 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:20:15,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770611372] [2021-11-12 23:20:15,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770611372] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:20:15,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:20:15,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 23:20:15,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449861875] [2021-11-12 23:20:15,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:20:15,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:20:15,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:20:15,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:20:15,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:20:15,132 INFO L87 Difference]: Start difference. First operand 1035 states and 1389 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:16,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:20:16,694 INFO L93 Difference]: Finished difference Result 2487 states and 3383 transitions. [2021-11-12 23:20:16,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:20:16,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2021-11-12 23:20:16,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:20:16,707 INFO L225 Difference]: With dead ends: 2487 [2021-11-12 23:20:16,707 INFO L226 Difference]: Without dead ends: 1541 [2021-11-12 23:20:16,710 INFO L932 BasicCegarLoop]: 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 [2021-11-12 23:20:16,714 INFO L933 BasicCegarLoop]: 742 mSDtfsCounter, 5368 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1080.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5368 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.39ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1321.94ms IncrementalHoareTripleChecker+Time [2021-11-12 23:20:16,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5368 Valid, 1142 Invalid, 998 Unknown, 0 Unchecked, 15.39ms Time], IncrementalHoareTripleChecker [8 Valid, 990 Invalid, 0 Unknown, 0 Unchecked, 1321.94ms Time] [2021-11-12 23:20:16,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1541 states. [2021-11-12 23:20:16,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1541 to 1439. [2021-11-12 23:20:16,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1439 states, 1410 states have (on average 1.4184397163120568) internal successors, (2000), 1438 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:16,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 2000 transitions. [2021-11-12 23:20:16,860 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 2000 transitions. Word has length 104 [2021-11-12 23:20:16,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:20:16,861 INFO L470 AbstractCegarLoop]: Abstraction has 1439 states and 2000 transitions. [2021-11-12 23:20:16,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:16,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 2000 transitions. [2021-11-12 23:20:16,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-12 23:20:16,866 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:20:16,867 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:20:16,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-12 23:20:16,867 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:20:16,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:20:16,868 INFO L85 PathProgramCache]: Analyzing trace with hash 883423548, now seen corresponding path program 1 times [2021-11-12 23:20:16,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:20:16,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900409568] [2021-11-12 23:20:16,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:20:16,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:20:16,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:20:17,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:20:17,068 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:20:17,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900409568] [2021-11-12 23:20:17,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900409568] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:20:17,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:20:17,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 23:20:17,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222558571] [2021-11-12 23:20:17,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:20:17,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:20:17,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:20:17,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:20:17,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:20:17,072 INFO L87 Difference]: Start difference. First operand 1439 states and 2000 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:18,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:20:18,199 INFO L93 Difference]: Finished difference Result 2789 states and 3910 transitions. [2021-11-12 23:20:18,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:20:18,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2021-11-12 23:20:18,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:20:18,213 INFO L225 Difference]: With dead ends: 2789 [2021-11-12 23:20:18,213 INFO L226 Difference]: Without dead ends: 1428 [2021-11-12 23:20:18,216 INFO L932 BasicCegarLoop]: 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 [2021-11-12 23:20:18,218 INFO L933 BasicCegarLoop]: 675 mSDtfsCounter, 3866 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 740.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3866 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.95ms SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 916.84ms IncrementalHoareTripleChecker+Time [2021-11-12 23:20:18,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3866 Valid, 711 Invalid, 719 Unknown, 0 Unchecked, 10.95ms Time], IncrementalHoareTripleChecker [52 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 916.84ms Time] [2021-11-12 23:20:18,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2021-11-12 23:20:18,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1428. [2021-11-12 23:20:18,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.4195854181558256) internal successors, (1986), 1427 states have internal predecessors, (1986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:18,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1986 transitions. [2021-11-12 23:20:18,335 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1986 transitions. Word has length 105 [2021-11-12 23:20:18,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:20:18,336 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1986 transitions. [2021-11-12 23:20:18,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:18,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1986 transitions. [2021-11-12 23:20:18,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-12 23:20:18,341 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:20:18,341 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:20:18,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-12 23:20:18,342 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:20:18,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:20:18,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1511270635, now seen corresponding path program 1 times [2021-11-12 23:20:18,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:20:18,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134225353] [2021-11-12 23:20:18,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:20:18,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:20:18,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:20:18,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:20:18,681 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:20:18,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134225353] [2021-11-12 23:20:18,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134225353] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:20:18,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:20:18,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:20:18,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100940315] [2021-11-12 23:20:18,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:20:18,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:20:18,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:20:18,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:20:18,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:20:18,685 INFO L87 Difference]: Start difference. First operand 1428 states and 1986 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) [2021-11-12 23:20:22,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:20:22,457 INFO L93 Difference]: Finished difference Result 2886 states and 3974 transitions. [2021-11-12 23:20:22,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-12 23:20:22,457 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 106 [2021-11-12 23:20:22,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:20:22,473 INFO L225 Difference]: With dead ends: 2886 [2021-11-12 23:20:22,474 INFO L226 Difference]: Without dead ends: 2668 [2021-11-12 23:20:22,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2021-11-12 23:20:22,476 INFO L933 BasicCegarLoop]: 733 mSDtfsCounter, 7917 mSDsluCounter, 3999 mSDsCounter, 0 mSdLazyCounter, 4324 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2589.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7917 SdHoareTripleChecker+Valid, 4725 SdHoareTripleChecker+Invalid, 4372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.87ms SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 4324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3122.38ms IncrementalHoareTripleChecker+Time [2021-11-12 23:20:22,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7917 Valid, 4725 Invalid, 4372 Unknown, 0 Unchecked, 40.87ms Time], IncrementalHoareTripleChecker [48 Valid, 4324 Invalid, 0 Unknown, 0 Unchecked, 3122.38ms Time] [2021-11-12 23:20:22,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2668 states. [2021-11-12 23:20:22,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2668 to 1431. [2021-11-12 23:20:22,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1431 states, 1402 states have (on average 1.4186875891583453) internal successors, (1989), 1430 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:22,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 1989 transitions. [2021-11-12 23:20:22,597 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 1989 transitions. Word has length 106 [2021-11-12 23:20:22,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:20:22,597 INFO L470 AbstractCegarLoop]: Abstraction has 1431 states and 1989 transitions. [2021-11-12 23:20:22,597 INFO L471 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) [2021-11-12 23:20:22,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 1989 transitions. [2021-11-12 23:20:22,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-12 23:20:22,601 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:20:22,601 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:20:22,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-12 23:20:22,602 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:20:22,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:20:22,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1376947041, now seen corresponding path program 1 times [2021-11-12 23:20:22,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:20:22,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323485047] [2021-11-12 23:20:22,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:20:22,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:20:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:20:22,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:20:22,770 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:20:22,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323485047] [2021-11-12 23:20:22,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323485047] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:20:22,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:20:22,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:20:22,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577692502] [2021-11-12 23:20:22,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:20:22,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:20:22,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:20:22,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:20:22,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:20:22,773 INFO L87 Difference]: Start difference. First operand 1431 states and 1989 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 7 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) [2021-11-12 23:20:24,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:20:24,925 INFO L93 Difference]: Finished difference Result 2382 states and 3276 transitions. [2021-11-12 23:20:24,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:20:24,926 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 7 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 106 [2021-11-12 23:20:24,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:20:24,937 INFO L225 Difference]: With dead ends: 2382 [2021-11-12 23:20:24,937 INFO L226 Difference]: Without dead ends: 2080 [2021-11-12 23:20:24,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:20:24,939 INFO L933 BasicCegarLoop]: 764 mSDtfsCounter, 4055 mSDsluCounter, 2335 mSDsCounter, 0 mSdLazyCounter, 2859 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1454.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4055 SdHoareTripleChecker+Valid, 3094 SdHoareTripleChecker+Invalid, 2877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.17ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1775.26ms IncrementalHoareTripleChecker+Time [2021-11-12 23:20:24,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4055 Valid, 3094 Invalid, 2877 Unknown, 0 Unchecked, 20.17ms Time], IncrementalHoareTripleChecker [18 Valid, 2859 Invalid, 0 Unknown, 0 Unchecked, 1775.26ms Time] [2021-11-12 23:20:24,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2080 states. [2021-11-12 23:20:25,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2080 to 1428. [2021-11-12 23:20:25,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.4188706218727662) internal successors, (1985), 1427 states have internal predecessors, (1985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:25,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1985 transitions. [2021-11-12 23:20:25,062 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1985 transitions. Word has length 106 [2021-11-12 23:20:25,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:20:25,063 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1985 transitions. [2021-11-12 23:20:25,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 7 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) [2021-11-12 23:20:25,063 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1985 transitions. [2021-11-12 23:20:25,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-12 23:20:25,069 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:20:25,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:20:25,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-12 23:20:25,070 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:20:25,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:20:25,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1798506288, now seen corresponding path program 1 times [2021-11-12 23:20:25,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:20:25,071 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046975679] [2021-11-12 23:20:25,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:20:25,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:20:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:20:25,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:20:25,237 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:20:25,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046975679] [2021-11-12 23:20:25,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046975679] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:20:25,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:20:25,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:20:25,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755378839] [2021-11-12 23:20:25,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:20:25,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:20:25,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:20:25,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:20:25,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:20:25,242 INFO L87 Difference]: Start difference. First operand 1428 states and 1985 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 7 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) [2021-11-12 23:20:27,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:20:27,290 INFO L93 Difference]: Finished difference Result 2620 states and 3624 transitions. [2021-11-12 23:20:27,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:20:27,290 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 7 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 106 [2021-11-12 23:20:27,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:20:27,304 INFO L225 Difference]: With dead ends: 2620 [2021-11-12 23:20:27,305 INFO L226 Difference]: Without dead ends: 2425 [2021-11-12 23:20:27,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:20:27,307 INFO L933 BasicCegarLoop]: 902 mSDtfsCounter, 3485 mSDsluCounter, 2889 mSDsCounter, 0 mSdLazyCounter, 3458 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1347.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3485 SdHoareTripleChecker+Valid, 3786 SdHoareTripleChecker+Invalid, 3480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.02ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 3458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1692.10ms IncrementalHoareTripleChecker+Time [2021-11-12 23:20:27,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3485 Valid, 3786 Invalid, 3480 Unknown, 0 Unchecked, 16.02ms Time], IncrementalHoareTripleChecker [22 Valid, 3458 Invalid, 0 Unknown, 0 Unchecked, 1692.10ms Time] [2021-11-12 23:20:27,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2021-11-12 23:20:27,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 1428. [2021-11-12 23:20:27,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.4181558255897069) internal successors, (1984), 1427 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:27,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1984 transitions. [2021-11-12 23:20:27,443 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1984 transitions. Word has length 106 [2021-11-12 23:20:27,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:20:27,443 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1984 transitions. [2021-11-12 23:20:27,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 7 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) [2021-11-12 23:20:27,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1984 transitions. [2021-11-12 23:20:27,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-12 23:20:27,447 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:20:27,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:20:27,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-12 23:20:27,448 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:20:27,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:20:27,449 INFO L85 PathProgramCache]: Analyzing trace with hash -43154195, now seen corresponding path program 1 times [2021-11-12 23:20:27,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:20:27,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999585645] [2021-11-12 23:20:27,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:20:27,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:20:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:20:27,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:20:27,673 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:20:27,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999585645] [2021-11-12 23:20:27,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999585645] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:20:27,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:20:27,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-12 23:20:27,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590491484] [2021-11-12 23:20:27,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:20:27,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-12 23:20:27,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:20:27,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-12 23:20:27,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:20:27,675 INFO L87 Difference]: Start difference. First operand 1428 states and 1984 transitions. Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 9 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) [2021-11-12 23:20:30,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:20:30,041 INFO L93 Difference]: Finished difference Result 2721 states and 3765 transitions. [2021-11-12 23:20:30,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-12 23:20:30,041 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 9 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 106 [2021-11-12 23:20:30,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:20:30,053 INFO L225 Difference]: With dead ends: 2721 [2021-11-12 23:20:30,053 INFO L226 Difference]: Without dead ends: 2417 [2021-11-12 23:20:30,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2021-11-12 23:20:30,056 INFO L933 BasicCegarLoop]: 920 mSDtfsCounter, 3518 mSDsluCounter, 4621 mSDsCounter, 0 mSdLazyCounter, 5062 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1672.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3518 SdHoareTripleChecker+Valid, 5530 SdHoareTripleChecker+Invalid, 5083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.69ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 5062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2056.25ms IncrementalHoareTripleChecker+Time [2021-11-12 23:20:30,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3518 Valid, 5530 Invalid, 5083 Unknown, 0 Unchecked, 15.69ms Time], IncrementalHoareTripleChecker [21 Valid, 5062 Invalid, 0 Unknown, 0 Unchecked, 2056.25ms Time] [2021-11-12 23:20:30,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2417 states. [2021-11-12 23:20:30,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2417 to 1428. [2021-11-12 23:20:30,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.4167262330235884) internal successors, (1982), 1427 states have internal predecessors, (1982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:30,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1982 transitions. [2021-11-12 23:20:30,193 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1982 transitions. Word has length 106 [2021-11-12 23:20:30,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:20:30,194 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1982 transitions. [2021-11-12 23:20:30,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 9 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) [2021-11-12 23:20:30,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1982 transitions. [2021-11-12 23:20:30,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-12 23:20:30,198 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:20:30,198 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:20:30,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-12 23:20:30,199 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:20:30,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:20:30,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1363595425, now seen corresponding path program 1 times [2021-11-12 23:20:30,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:20:30,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713120901] [2021-11-12 23:20:30,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:20:30,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:20:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:20:30,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:20:30,338 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:20:30,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713120901] [2021-11-12 23:20:30,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713120901] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:20:30,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:20:30,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-12 23:20:30,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640615294] [2021-11-12 23:20:30,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:20:30,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:20:30,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:20:30,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:20:30,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:20:30,340 INFO L87 Difference]: Start difference. First operand 1428 states and 1982 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 6 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) [2021-11-12 23:20:31,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:20:31,734 INFO L93 Difference]: Finished difference Result 2402 states and 3194 transitions. [2021-11-12 23:20:31,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 23:20:31,735 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 6 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 106 [2021-11-12 23:20:31,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:20:31,744 INFO L225 Difference]: With dead ends: 2402 [2021-11-12 23:20:31,744 INFO L226 Difference]: Without dead ends: 1812 [2021-11-12 23:20:31,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:20:31,746 INFO L933 BasicCegarLoop]: 595 mSDtfsCounter, 5592 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 1748 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 896.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5592 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 1946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.68ms SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 1748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1146.93ms IncrementalHoareTripleChecker+Time [2021-11-12 23:20:31,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5592 Valid, 1443 Invalid, 1946 Unknown, 0 Unchecked, 9.68ms Time], IncrementalHoareTripleChecker [198 Valid, 1748 Invalid, 0 Unknown, 0 Unchecked, 1146.93ms Time] [2021-11-12 23:20:31,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2021-11-12 23:20:31,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 1428. [2021-11-12 23:20:31,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.416011436740529) internal successors, (1981), 1427 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:31,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1981 transitions. [2021-11-12 23:20:31,887 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1981 transitions. Word has length 106 [2021-11-12 23:20:31,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:20:31,888 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1981 transitions. [2021-11-12 23:20:31,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 6 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) [2021-11-12 23:20:31,888 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1981 transitions. [2021-11-12 23:20:31,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-12 23:20:31,892 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:20:31,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:20:31,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-12 23:20:31,892 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:20:31,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:20:31,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1774608653, now seen corresponding path program 1 times [2021-11-12 23:20:31,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:20:31,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743542325] [2021-11-12 23:20:31,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:20:31,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:20:31,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:20:32,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:20:32,052 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:20:32,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743542325] [2021-11-12 23:20:32,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743542325] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:20:32,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:20:32,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:20:32,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006899695] [2021-11-12 23:20:32,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:20:32,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:20:32,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:20:32,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:20:32,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:20:32,054 INFO L87 Difference]: Start difference. First operand 1428 states and 1981 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 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) [2021-11-12 23:20:33,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:20:33,888 INFO L93 Difference]: Finished difference Result 2257 states and 3049 transitions. [2021-11-12 23:20:33,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:20:33,889 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 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 108 [2021-11-12 23:20:33,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:20:33,901 INFO L225 Difference]: With dead ends: 2257 [2021-11-12 23:20:33,901 INFO L226 Difference]: Without dead ends: 2252 [2021-11-12 23:20:33,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:20:33,904 INFO L933 BasicCegarLoop]: 698 mSDtfsCounter, 3631 mSDsluCounter, 2150 mSDsCounter, 0 mSdLazyCounter, 2856 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1203.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3631 SdHoareTripleChecker+Valid, 2839 SdHoareTripleChecker+Invalid, 3089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.41ms SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 2856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1480.69ms IncrementalHoareTripleChecker+Time [2021-11-12 23:20:33,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3631 Valid, 2839 Invalid, 3089 Unknown, 0 Unchecked, 12.41ms Time], IncrementalHoareTripleChecker [233 Valid, 2856 Invalid, 0 Unknown, 0 Unchecked, 1480.69ms Time] [2021-11-12 23:20:33,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2252 states. [2021-11-12 23:20:34,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2252 to 1428. [2021-11-12 23:20:34,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.4152966404574696) internal successors, (1980), 1427 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:34,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1980 transitions. [2021-11-12 23:20:34,108 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1980 transitions. Word has length 108 [2021-11-12 23:20:34,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:20:34,109 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1980 transitions. [2021-11-12 23:20:34,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 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) [2021-11-12 23:20:34,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1980 transitions. [2021-11-12 23:20:34,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-12 23:20:34,113 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:20:34,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:20:34,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-12 23:20:34,114 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:20:34,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:20:34,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1111952338, now seen corresponding path program 1 times [2021-11-12 23:20:34,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:20:34,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819609863] [2021-11-12 23:20:34,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:20:34,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:20:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:20:34,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:20:34,282 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:20:34,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819609863] [2021-11-12 23:20:34,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819609863] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:20:34,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:20:34,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:20:34,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240365245] [2021-11-12 23:20:34,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:20:34,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:20:34,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:20:34,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:20:34,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:20:34,284 INFO L87 Difference]: Start difference. First operand 1428 states and 1980 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 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) [2021-11-12 23:20:36,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:20:36,238 INFO L93 Difference]: Finished difference Result 2358 states and 3185 transitions. [2021-11-12 23:20:36,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:20:36,238 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 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 108 [2021-11-12 23:20:36,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:20:36,247 INFO L225 Difference]: With dead ends: 2358 [2021-11-12 23:20:36,247 INFO L226 Difference]: Without dead ends: 2252 [2021-11-12 23:20:36,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:20:36,248 INFO L933 BasicCegarLoop]: 690 mSDtfsCounter, 3632 mSDsluCounter, 2135 mSDsCounter, 0 mSdLazyCounter, 2848 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1279.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3632 SdHoareTripleChecker+Valid, 2818 SdHoareTripleChecker+Invalid, 3081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.57ms SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 2848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1563.98ms IncrementalHoareTripleChecker+Time [2021-11-12 23:20:36,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3632 Valid, 2818 Invalid, 3081 Unknown, 0 Unchecked, 12.57ms Time], IncrementalHoareTripleChecker [233 Valid, 2848 Invalid, 0 Unknown, 0 Unchecked, 1563.98ms Time] [2021-11-12 23:20:36,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2252 states. [2021-11-12 23:20:36,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2252 to 1428. [2021-11-12 23:20:36,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.4145818441744102) internal successors, (1979), 1427 states have internal predecessors, (1979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:36,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1979 transitions. [2021-11-12 23:20:36,397 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1979 transitions. Word has length 108 [2021-11-12 23:20:36,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:20:36,398 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1979 transitions. [2021-11-12 23:20:36,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 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) [2021-11-12 23:20:36,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1979 transitions. [2021-11-12 23:20:36,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-12 23:20:36,402 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:20:36,402 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:20:36,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-12 23:20:36,403 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:20:36,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:20:36,403 INFO L85 PathProgramCache]: Analyzing trace with hash -507418736, now seen corresponding path program 1 times [2021-11-12 23:20:36,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:20:36,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953870039] [2021-11-12 23:20:36,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:20:36,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:20:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:20:36,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:20:36,532 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:20:36,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953870039] [2021-11-12 23:20:36,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953870039] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:20:36,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:20:36,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:20:36,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443429728] [2021-11-12 23:20:36,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:20:36,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:20:36,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:20:36,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:20:36,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:20:36,535 INFO L87 Difference]: Start difference. First operand 1428 states and 1979 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 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) [2021-11-12 23:20:38,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:20:38,659 INFO L93 Difference]: Finished difference Result 2643 states and 3641 transitions. [2021-11-12 23:20:38,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:20:38,659 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 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 108 [2021-11-12 23:20:38,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:20:38,672 INFO L225 Difference]: With dead ends: 2643 [2021-11-12 23:20:38,672 INFO L226 Difference]: Without dead ends: 2425 [2021-11-12 23:20:38,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:20:38,674 INFO L933 BasicCegarLoop]: 923 mSDtfsCounter, 3508 mSDsluCounter, 2722 mSDsCounter, 0 mSdLazyCounter, 3281 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1405.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3508 SdHoareTripleChecker+Valid, 3637 SdHoareTripleChecker+Invalid, 3302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.78ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1714.07ms IncrementalHoareTripleChecker+Time [2021-11-12 23:20:38,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3508 Valid, 3637 Invalid, 3302 Unknown, 0 Unchecked, 13.78ms Time], IncrementalHoareTripleChecker [21 Valid, 3281 Invalid, 0 Unknown, 0 Unchecked, 1714.07ms Time] [2021-11-12 23:20:38,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2021-11-12 23:20:38,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 1428. [2021-11-12 23:20:38,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.4138670478913509) internal successors, (1978), 1427 states have internal predecessors, (1978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:38,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1978 transitions. [2021-11-12 23:20:38,872 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1978 transitions. Word has length 108 [2021-11-12 23:20:38,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:20:38,872 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1978 transitions. [2021-11-12 23:20:38,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 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) [2021-11-12 23:20:38,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1978 transitions. [2021-11-12 23:20:38,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-12 23:20:38,877 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:20:38,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:20:38,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-12 23:20:38,878 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:20:38,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:20:38,879 INFO L85 PathProgramCache]: Analyzing trace with hash 899330884, now seen corresponding path program 1 times [2021-11-12 23:20:38,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:20:38,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372275798] [2021-11-12 23:20:38,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:20:38,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:20:38,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:20:39,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:20:39,032 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:20:39,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372275798] [2021-11-12 23:20:39,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372275798] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:20:39,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:20:39,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:20:39,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809087968] [2021-11-12 23:20:39,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:20:39,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:20:39,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:20:39,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:20:39,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:20:39,037 INFO L87 Difference]: Start difference. First operand 1428 states and 1978 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 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) [2021-11-12 23:20:41,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:20:41,014 INFO L93 Difference]: Finished difference Result 2361 states and 3185 transitions. [2021-11-12 23:20:41,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:20:41,014 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 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 108 [2021-11-12 23:20:41,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:20:41,024 INFO L225 Difference]: With dead ends: 2361 [2021-11-12 23:20:41,024 INFO L226 Difference]: Without dead ends: 2252 [2021-11-12 23:20:41,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:20:41,026 INFO L933 BasicCegarLoop]: 698 mSDtfsCounter, 5279 mSDsluCounter, 2149 mSDsCounter, 0 mSdLazyCounter, 2843 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1300.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5279 SdHoareTripleChecker+Valid, 2838 SdHoareTripleChecker+Invalid, 3207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.08ms SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 2843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1587.29ms IncrementalHoareTripleChecker+Time [2021-11-12 23:20:41,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5279 Valid, 2838 Invalid, 3207 Unknown, 0 Unchecked, 13.08ms Time], IncrementalHoareTripleChecker [364 Valid, 2843 Invalid, 0 Unknown, 0 Unchecked, 1587.29ms Time] [2021-11-12 23:20:41,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2252 states. [2021-11-12 23:20:41,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2252 to 1428. [2021-11-12 23:20:41,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.4131522516082917) internal successors, (1977), 1427 states have internal predecessors, (1977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:41,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1977 transitions. [2021-11-12 23:20:41,175 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1977 transitions. Word has length 108 [2021-11-12 23:20:41,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:20:41,175 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1977 transitions. [2021-11-12 23:20:41,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 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) [2021-11-12 23:20:41,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1977 transitions. [2021-11-12 23:20:41,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-12 23:20:41,179 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:20:41,180 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:20:41,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-12 23:20:41,180 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:20:41,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:20:41,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1711979523, now seen corresponding path program 1 times [2021-11-12 23:20:41,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:20:41,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878859954] [2021-11-12 23:20:41,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:20:41,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:20:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:20:41,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:20:41,318 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:20:41,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878859954] [2021-11-12 23:20:41,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878859954] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:20:41,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:20:41,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:20:41,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592325814] [2021-11-12 23:20:41,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:20:41,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:20:41,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:20:41,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:20:41,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:20:41,320 INFO L87 Difference]: Start difference. First operand 1428 states and 1977 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 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) [2021-11-12 23:20:43,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:20:43,156 INFO L93 Difference]: Finished difference Result 2257 states and 3042 transitions. [2021-11-12 23:20:43,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:20:43,157 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 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 108 [2021-11-12 23:20:43,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:20:43,164 INFO L225 Difference]: With dead ends: 2257 [2021-11-12 23:20:43,164 INFO L226 Difference]: Without dead ends: 2252 [2021-11-12 23:20:43,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:20:43,166 INFO L933 BasicCegarLoop]: 698 mSDtfsCounter, 3620 mSDsluCounter, 2150 mSDsCounter, 0 mSdLazyCounter, 2835 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1160.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3620 SdHoareTripleChecker+Valid, 2839 SdHoareTripleChecker+Invalid, 3068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.36ms SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 2835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1456.13ms IncrementalHoareTripleChecker+Time [2021-11-12 23:20:43,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3620 Valid, 2839 Invalid, 3068 Unknown, 0 Unchecked, 11.36ms Time], IncrementalHoareTripleChecker [233 Valid, 2835 Invalid, 0 Unknown, 0 Unchecked, 1456.13ms Time] [2021-11-12 23:20:43,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2252 states. [2021-11-12 23:20:43,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2252 to 1428. [2021-11-12 23:20:43,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.411722659042173) internal successors, (1975), 1427 states have internal predecessors, (1975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:43,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1975 transitions. [2021-11-12 23:20:43,374 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1975 transitions. Word has length 108 [2021-11-12 23:20:43,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:20:43,375 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1975 transitions. [2021-11-12 23:20:43,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 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) [2021-11-12 23:20:43,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1975 transitions. [2021-11-12 23:20:43,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-12 23:20:43,379 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:20:43,379 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:20:43,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-12 23:20:43,380 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:20:43,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:20:43,380 INFO L85 PathProgramCache]: Analyzing trace with hash -567046043, now seen corresponding path program 1 times [2021-11-12 23:20:43,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:20:43,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370951869] [2021-11-12 23:20:43,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:20:43,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:20:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:20:43,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:20:43,507 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:20:43,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370951869] [2021-11-12 23:20:43,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370951869] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:20:43,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:20:43,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:20:43,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146015476] [2021-11-12 23:20:43,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:20:43,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:20:43,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:20:43,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:20:43,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:20:43,509 INFO L87 Difference]: Start difference. First operand 1428 states and 1975 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 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) [2021-11-12 23:20:44,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:20:44,940 INFO L93 Difference]: Finished difference Result 2120 states and 2923 transitions. [2021-11-12 23:20:44,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 23:20:44,940 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 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 108 [2021-11-12 23:20:44,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:20:44,944 INFO L225 Difference]: With dead ends: 2120 [2021-11-12 23:20:44,944 INFO L226 Difference]: Without dead ends: 1540 [2021-11-12 23:20:44,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-11-12 23:20:44,946 INFO L933 BasicCegarLoop]: 765 mSDtfsCounter, 2817 mSDsluCounter, 2221 mSDsCounter, 0 mSdLazyCounter, 2712 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 947.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2817 SdHoareTripleChecker+Valid, 2980 SdHoareTripleChecker+Invalid, 2727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.09ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1162.72ms IncrementalHoareTripleChecker+Time [2021-11-12 23:20:44,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2817 Valid, 2980 Invalid, 2727 Unknown, 0 Unchecked, 9.09ms Time], IncrementalHoareTripleChecker [15 Valid, 2712 Invalid, 0 Unknown, 0 Unchecked, 1162.72ms Time] [2021-11-12 23:20:44,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1540 states. [2021-11-12 23:20:45,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1540 to 1428. [2021-11-12 23:20:45,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.4102930664760542) internal successors, (1973), 1427 states have internal predecessors, (1973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:45,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1973 transitions. [2021-11-12 23:20:45,076 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1973 transitions. Word has length 108 [2021-11-12 23:20:45,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:20:45,077 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1973 transitions. [2021-11-12 23:20:45,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 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) [2021-11-12 23:20:45,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1973 transitions. [2021-11-12 23:20:45,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-12 23:20:45,081 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:20:45,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:20:45,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-12 23:20:45,081 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:20:45,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:20:45,082 INFO L85 PathProgramCache]: Analyzing trace with hash -609046091, now seen corresponding path program 1 times [2021-11-12 23:20:45,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:20:45,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384132706] [2021-11-12 23:20:45,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:20:45,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:20:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:20:45,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:20:45,225 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:20:45,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384132706] [2021-11-12 23:20:45,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384132706] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:20:45,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:20:45,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:20:45,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046402535] [2021-11-12 23:20:45,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:20:45,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:20:45,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:20:45,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:20:45,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:20:45,228 INFO L87 Difference]: Start difference. First operand 1428 states and 1973 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:47,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:20:47,608 INFO L93 Difference]: Finished difference Result 2512 states and 3443 transitions. [2021-11-12 23:20:47,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:20:47,610 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2021-11-12 23:20:47,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:20:47,616 INFO L225 Difference]: With dead ends: 2512 [2021-11-12 23:20:47,616 INFO L226 Difference]: Without dead ends: 2389 [2021-11-12 23:20:47,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:20:47,618 INFO L933 BasicCegarLoop]: 759 mSDtfsCounter, 4196 mSDsluCounter, 3308 mSDsCounter, 0 mSdLazyCounter, 3642 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1558.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4196 SdHoareTripleChecker+Valid, 4056 SdHoareTripleChecker+Invalid, 3708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.41ms SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1922.83ms IncrementalHoareTripleChecker+Time [2021-11-12 23:20:47,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4196 Valid, 4056 Invalid, 3708 Unknown, 0 Unchecked, 14.41ms Time], IncrementalHoareTripleChecker [66 Valid, 3642 Invalid, 0 Unknown, 0 Unchecked, 1922.83ms Time] [2021-11-12 23:20:47,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2389 states. [2021-11-12 23:20:47,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2389 to 1428. [2021-11-12 23:20:47,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.409578270192995) internal successors, (1972), 1427 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:47,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1972 transitions. [2021-11-12 23:20:47,765 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1972 transitions. Word has length 110 [2021-11-12 23:20:47,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:20:47,766 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1972 transitions. [2021-11-12 23:20:47,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:47,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1972 transitions. [2021-11-12 23:20:47,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-12 23:20:47,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:20:47,770 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:20:47,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-12 23:20:47,771 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:20:47,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:20:47,771 INFO L85 PathProgramCache]: Analyzing trace with hash 359138964, now seen corresponding path program 1 times [2021-11-12 23:20:47,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:20:47,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458162010] [2021-11-12 23:20:47,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:20:47,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:20:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:20:47,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:20:47,905 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:20:47,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458162010] [2021-11-12 23:20:47,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458162010] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:20:47,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:20:47,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:20:47,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755389684] [2021-11-12 23:20:47,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:20:47,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:20:47,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:20:47,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:20:47,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:20:47,908 INFO L87 Difference]: Start difference. First operand 1428 states and 1972 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:50,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:20:50,114 INFO L93 Difference]: Finished difference Result 2566 states and 3527 transitions. [2021-11-12 23:20:50,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:20:50,114 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2021-11-12 23:20:50,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:20:50,118 INFO L225 Difference]: With dead ends: 2566 [2021-11-12 23:20:50,118 INFO L226 Difference]: Without dead ends: 2413 [2021-11-12 23:20:50,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:20:50,119 INFO L933 BasicCegarLoop]: 1019 mSDtfsCounter, 3148 mSDsluCounter, 3177 mSDsCounter, 0 mSdLazyCounter, 3784 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1430.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3148 SdHoareTripleChecker+Valid, 4188 SdHoareTripleChecker+Invalid, 3816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.38ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 3784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1756.94ms IncrementalHoareTripleChecker+Time [2021-11-12 23:20:50,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3148 Valid, 4188 Invalid, 3816 Unknown, 0 Unchecked, 13.38ms Time], IncrementalHoareTripleChecker [32 Valid, 3784 Invalid, 0 Unknown, 0 Unchecked, 1756.94ms Time] [2021-11-12 23:20:50,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2413 states. [2021-11-12 23:20:50,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2413 to 1428. [2021-11-12 23:20:50,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.4088634739099357) internal successors, (1971), 1427 states have internal predecessors, (1971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:50,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1971 transitions. [2021-11-12 23:20:50,328 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1971 transitions. Word has length 110 [2021-11-12 23:20:50,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:20:50,328 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1971 transitions. [2021-11-12 23:20:50,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:50,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1971 transitions. [2021-11-12 23:20:50,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-12 23:20:50,332 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:20:50,332 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:20:50,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-12 23:20:50,333 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:20:50,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:20:50,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1547475906, now seen corresponding path program 1 times [2021-11-12 23:20:50,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:20:50,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577801688] [2021-11-12 23:20:50,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:20:50,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:20:50,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:20:50,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:20:50,471 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:20:50,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577801688] [2021-11-12 23:20:50,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577801688] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:20:50,471 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:20:50,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:20:50,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137732231] [2021-11-12 23:20:50,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:20:50,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:20:50,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:20:50,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:20:50,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:20:50,474 INFO L87 Difference]: Start difference. First operand 1428 states and 1971 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:52,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:20:52,555 INFO L93 Difference]: Finished difference Result 2506 states and 3432 transitions. [2021-11-12 23:20:52,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:20:52,556 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2021-11-12 23:20:52,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:20:52,559 INFO L225 Difference]: With dead ends: 2506 [2021-11-12 23:20:52,559 INFO L226 Difference]: Without dead ends: 2389 [2021-11-12 23:20:52,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:20:52,561 INFO L933 BasicCegarLoop]: 819 mSDtfsCounter, 4207 mSDsluCounter, 3413 mSDsCounter, 0 mSdLazyCounter, 3715 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1373.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4207 SdHoareTripleChecker+Valid, 4221 SdHoareTripleChecker+Invalid, 3781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.26ms SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1681.54ms IncrementalHoareTripleChecker+Time [2021-11-12 23:20:52,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4207 Valid, 4221 Invalid, 3781 Unknown, 0 Unchecked, 12.26ms Time], IncrementalHoareTripleChecker [66 Valid, 3715 Invalid, 0 Unknown, 0 Unchecked, 1681.54ms Time] [2021-11-12 23:20:52,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2389 states. [2021-11-12 23:20:52,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2389 to 1428. [2021-11-12 23:20:52,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.4081486776268763) internal successors, (1970), 1427 states have internal predecessors, (1970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:52,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1970 transitions. [2021-11-12 23:20:52,691 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1970 transitions. Word has length 110 [2021-11-12 23:20:52,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:20:52,691 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1970 transitions. [2021-11-12 23:20:52,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:52,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1970 transitions. [2021-11-12 23:20:52,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-12 23:20:52,694 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:20:52,694 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:20:52,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-12 23:20:52,694 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:20:52,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:20:52,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1100437199, now seen corresponding path program 1 times [2021-11-12 23:20:52,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:20:52,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72298714] [2021-11-12 23:20:52,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:20:52,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:20:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:20:52,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:20:52,832 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:20:52,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72298714] [2021-11-12 23:20:52,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72298714] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:20:52,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:20:52,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:20:52,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083123231] [2021-11-12 23:20:52,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:20:52,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:20:52,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:20:52,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:20:52,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:20:52,834 INFO L87 Difference]: Start difference. First operand 1428 states and 1970 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:54,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:20:54,804 INFO L93 Difference]: Finished difference Result 2356 states and 3169 transitions. [2021-11-12 23:20:54,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:20:54,806 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2021-11-12 23:20:54,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:20:54,809 INFO L225 Difference]: With dead ends: 2356 [2021-11-12 23:20:54,810 INFO L226 Difference]: Without dead ends: 2252 [2021-11-12 23:20:54,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:20:54,811 INFO L933 BasicCegarLoop]: 689 mSDtfsCounter, 5251 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 2821 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1207.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5251 SdHoareTripleChecker+Valid, 2814 SdHoareTripleChecker+Invalid, 3185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.20ms SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 2821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1485.09ms IncrementalHoareTripleChecker+Time [2021-11-12 23:20:54,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5251 Valid, 2814 Invalid, 3185 Unknown, 0 Unchecked, 12.20ms Time], IncrementalHoareTripleChecker [364 Valid, 2821 Invalid, 0 Unknown, 0 Unchecked, 1485.09ms Time] [2021-11-12 23:20:54,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2252 states. [2021-11-12 23:20:54,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2252 to 1428. [2021-11-12 23:20:54,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.407433881343817) internal successors, (1969), 1427 states have internal predecessors, (1969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:54,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1969 transitions. [2021-11-12 23:20:54,972 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1969 transitions. Word has length 110 [2021-11-12 23:20:54,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:20:54,972 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1969 transitions. [2021-11-12 23:20:54,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:54,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1969 transitions. [2021-11-12 23:20:54,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-12 23:20:54,976 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:20:54,976 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:20:54,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-12 23:20:54,976 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:20:54,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:20:54,977 INFO L85 PathProgramCache]: Analyzing trace with hash 707210619, now seen corresponding path program 1 times [2021-11-12 23:20:54,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:20:54,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115216408] [2021-11-12 23:20:54,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:20:54,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:20:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:20:55,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:20:55,119 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:20:55,120 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115216408] [2021-11-12 23:20:55,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115216408] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:20:55,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:20:55,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:20:55,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006091854] [2021-11-12 23:20:55,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:20:55,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:20:55,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:20:55,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:20:55,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:20:55,122 INFO L87 Difference]: Start difference. First operand 1428 states and 1969 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:57,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:20:57,423 INFO L93 Difference]: Finished difference Result 2554 states and 3508 transitions. [2021-11-12 23:20:57,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:20:57,423 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2021-11-12 23:20:57,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:20:57,427 INFO L225 Difference]: With dead ends: 2554 [2021-11-12 23:20:57,427 INFO L226 Difference]: Without dead ends: 2413 [2021-11-12 23:20:57,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:20:57,429 INFO L933 BasicCegarLoop]: 1218 mSDtfsCounter, 4257 mSDsluCounter, 4091 mSDsCounter, 0 mSdLazyCounter, 4325 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1535.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4257 SdHoareTripleChecker+Valid, 5299 SdHoareTripleChecker+Invalid, 4362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.56ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 4325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1877.51ms IncrementalHoareTripleChecker+Time [2021-11-12 23:20:57,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4257 Valid, 5299 Invalid, 4362 Unknown, 0 Unchecked, 13.56ms Time], IncrementalHoareTripleChecker [37 Valid, 4325 Invalid, 0 Unknown, 0 Unchecked, 1877.51ms Time] [2021-11-12 23:20:57,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2413 states. [2021-11-12 23:20:57,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2413 to 1428. [2021-11-12 23:20:57,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.4067190850607576) internal successors, (1968), 1427 states have internal predecessors, (1968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:57,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1968 transitions. [2021-11-12 23:20:57,613 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1968 transitions. Word has length 110 [2021-11-12 23:20:57,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:20:57,613 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1968 transitions. [2021-11-12 23:20:57,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:57,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1968 transitions. [2021-11-12 23:20:57,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-12 23:20:57,615 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:20:57,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:20:57,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-12 23:20:57,616 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:20:57,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:20:57,617 INFO L85 PathProgramCache]: Analyzing trace with hash -583741300, now seen corresponding path program 1 times [2021-11-12 23:20:57,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:20:57,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145532913] [2021-11-12 23:20:57,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:20:57,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:20:57,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:20:57,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:20:57,757 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:20:57,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145532913] [2021-11-12 23:20:57,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145532913] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:20:57,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:20:57,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:20:57,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228437777] [2021-11-12 23:20:57,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:20:57,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:20:57,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:20:57,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:20:57,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:20:57,760 INFO L87 Difference]: Start difference. First operand 1428 states and 1968 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:00,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:21:00,022 INFO L93 Difference]: Finished difference Result 2518 states and 3443 transitions. [2021-11-12 23:21:00,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:21:00,022 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2021-11-12 23:21:00,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:21:00,029 INFO L225 Difference]: With dead ends: 2518 [2021-11-12 23:21:00,029 INFO L226 Difference]: Without dead ends: 2389 [2021-11-12 23:21:00,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:21:00,031 INFO L933 BasicCegarLoop]: 875 mSDtfsCounter, 4184 mSDsluCounter, 3488 mSDsCounter, 0 mSdLazyCounter, 3799 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1475.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4184 SdHoareTripleChecker+Valid, 4352 SdHoareTripleChecker+Invalid, 3865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.71ms SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1800.68ms IncrementalHoareTripleChecker+Time [2021-11-12 23:21:00,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4184 Valid, 4352 Invalid, 3865 Unknown, 0 Unchecked, 13.71ms Time], IncrementalHoareTripleChecker [66 Valid, 3799 Invalid, 0 Unknown, 0 Unchecked, 1800.68ms Time] [2021-11-12 23:21:00,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2389 states. [2021-11-12 23:21:00,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2389 to 1428. [2021-11-12 23:21:00,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.4060042887776985) internal successors, (1967), 1427 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:00,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1967 transitions. [2021-11-12 23:21:00,280 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1967 transitions. Word has length 110 [2021-11-12 23:21:00,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:21:00,281 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1967 transitions. [2021-11-12 23:21:00,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:00,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1967 transitions. [2021-11-12 23:21:00,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-12 23:21:00,284 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:21:00,284 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:21:00,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-12 23:21:00,285 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:21:00,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:21:00,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1881631338, now seen corresponding path program 1 times [2021-11-12 23:21:00,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:21:00,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836045014] [2021-11-12 23:21:00,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:21:00,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:21:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:21:00,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:21:00,425 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:21:00,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836045014] [2021-11-12 23:21:00,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836045014] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:21:00,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:21:00,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:21:00,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493385416] [2021-11-12 23:21:00,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:21:00,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:21:00,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:21:00,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:21:00,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:21:00,428 INFO L87 Difference]: Start difference. First operand 1428 states and 1967 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:02,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:21:02,523 INFO L93 Difference]: Finished difference Result 2581 states and 3536 transitions. [2021-11-12 23:21:02,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:21:02,524 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2021-11-12 23:21:02,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:21:02,530 INFO L225 Difference]: With dead ends: 2581 [2021-11-12 23:21:02,530 INFO L226 Difference]: Without dead ends: 2413 [2021-11-12 23:21:02,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:21:02,537 INFO L933 BasicCegarLoop]: 1019 mSDtfsCounter, 3147 mSDsluCounter, 3150 mSDsCounter, 0 mSdLazyCounter, 3748 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1326.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3147 SdHoareTripleChecker+Valid, 4160 SdHoareTripleChecker+Invalid, 3780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.15ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 3748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1630.85ms IncrementalHoareTripleChecker+Time [2021-11-12 23:21:02,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3147 Valid, 4160 Invalid, 3780 Unknown, 0 Unchecked, 12.15ms Time], IncrementalHoareTripleChecker [32 Valid, 3748 Invalid, 0 Unknown, 0 Unchecked, 1630.85ms Time] [2021-11-12 23:21:02,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2413 states. [2021-11-12 23:21:02,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2413 to 1428. [2021-11-12 23:21:02,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.405289492494639) internal successors, (1966), 1427 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:02,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1966 transitions. [2021-11-12 23:21:02,749 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1966 transitions. Word has length 110 [2021-11-12 23:21:02,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:21:02,749 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1966 transitions. [2021-11-12 23:21:02,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:02,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1966 transitions. [2021-11-12 23:21:02,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-12 23:21:02,752 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:21:02,752 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:21:02,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-12 23:21:02,752 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:21:02,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:21:02,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1683197661, now seen corresponding path program 1 times [2021-11-12 23:21:02,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:21:02,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387228935] [2021-11-12 23:21:02,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:21:02,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:21:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:21:02,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:21:02,892 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:21:02,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387228935] [2021-11-12 23:21:02,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387228935] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:21:02,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:21:02,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:21:02,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184932292] [2021-11-12 23:21:02,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:21:02,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:21:02,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:21:02,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:21:02,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:21:02,895 INFO L87 Difference]: Start difference. First operand 1428 states and 1966 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:05,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:21:05,207 INFO L93 Difference]: Finished difference Result 2562 states and 3512 transitions. [2021-11-12 23:21:05,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:21:05,208 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2021-11-12 23:21:05,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:21:05,213 INFO L225 Difference]: With dead ends: 2562 [2021-11-12 23:21:05,213 INFO L226 Difference]: Without dead ends: 2413 [2021-11-12 23:21:05,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:21:05,215 INFO L933 BasicCegarLoop]: 1166 mSDtfsCounter, 4353 mSDsluCounter, 3982 mSDsCounter, 0 mSdLazyCounter, 4080 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1475.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4353 SdHoareTripleChecker+Valid, 5137 SdHoareTripleChecker+Invalid, 4119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.63ms SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 4080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1806.77ms IncrementalHoareTripleChecker+Time [2021-11-12 23:21:05,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4353 Valid, 5137 Invalid, 4119 Unknown, 0 Unchecked, 13.63ms Time], IncrementalHoareTripleChecker [39 Valid, 4080 Invalid, 0 Unknown, 0 Unchecked, 1806.77ms Time] [2021-11-12 23:21:05,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2413 states. [2021-11-12 23:21:05,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2413 to 1428. [2021-11-12 23:21:05,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.4045746962115797) internal successors, (1965), 1427 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:05,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1965 transitions. [2021-11-12 23:21:05,443 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1965 transitions. Word has length 110 [2021-11-12 23:21:05,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:21:05,443 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1965 transitions. [2021-11-12 23:21:05,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:05,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1965 transitions. [2021-11-12 23:21:05,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-12 23:21:05,446 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:21:05,447 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:21:05,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-12 23:21:05,447 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:21:05,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:21:05,448 INFO L85 PathProgramCache]: Analyzing trace with hash 656800929, now seen corresponding path program 1 times [2021-11-12 23:21:05,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:21:05,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975294971] [2021-11-12 23:21:05,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:21:05,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:21:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:21:05,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:21:05,591 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:21:05,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975294971] [2021-11-12 23:21:05,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975294971] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:21:05,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:21:05,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:21:05,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029180436] [2021-11-12 23:21:05,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:21:05,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:21:05,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:21:05,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:21:05,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:21:05,593 INFO L87 Difference]: Start difference. First operand 1428 states and 1965 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:07,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:21:07,881 INFO L93 Difference]: Finished difference Result 2508 states and 3427 transitions. [2021-11-12 23:21:07,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:21:07,881 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2021-11-12 23:21:07,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:21:07,885 INFO L225 Difference]: With dead ends: 2508 [2021-11-12 23:21:07,886 INFO L226 Difference]: Without dead ends: 2389 [2021-11-12 23:21:07,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:21:07,887 INFO L933 BasicCegarLoop]: 1016 mSDtfsCounter, 4150 mSDsluCounter, 3749 mSDsCounter, 0 mSdLazyCounter, 3991 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1453.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4150 SdHoareTripleChecker+Valid, 4754 SdHoareTripleChecker+Invalid, 4057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.96ms SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1793.49ms IncrementalHoareTripleChecker+Time [2021-11-12 23:21:07,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4150 Valid, 4754 Invalid, 4057 Unknown, 0 Unchecked, 12.96ms Time], IncrementalHoareTripleChecker [66 Valid, 3991 Invalid, 0 Unknown, 0 Unchecked, 1793.49ms Time] [2021-11-12 23:21:07,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2389 states. [2021-11-12 23:21:08,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2389 to 1428. [2021-11-12 23:21:08,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.4038598999285203) internal successors, (1964), 1427 states have internal predecessors, (1964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:08,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1964 transitions. [2021-11-12 23:21:08,115 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1964 transitions. Word has length 110 [2021-11-12 23:21:08,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:21:08,116 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1964 transitions. [2021-11-12 23:21:08,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:08,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1964 transitions. [2021-11-12 23:21:08,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-12 23:21:08,119 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:21:08,120 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:21:08,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-12 23:21:08,120 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:21:08,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:21:08,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1792170171, now seen corresponding path program 1 times [2021-11-12 23:21:08,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:21:08,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691458053] [2021-11-12 23:21:08,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:21:08,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:21:08,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:21:08,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:21:08,274 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:21:08,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691458053] [2021-11-12 23:21:08,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691458053] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:21:08,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:21:08,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:21:08,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082085948] [2021-11-12 23:21:08,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:21:08,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:21:08,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:21:08,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:21:08,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:21:08,276 INFO L87 Difference]: Start difference. First operand 1428 states and 1964 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:10,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:21:10,571 INFO L93 Difference]: Finished difference Result 2537 states and 3466 transitions. [2021-11-12 23:21:10,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:21:10,572 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2021-11-12 23:21:10,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:21:10,575 INFO L225 Difference]: With dead ends: 2537 [2021-11-12 23:21:10,575 INFO L226 Difference]: Without dead ends: 2389 [2021-11-12 23:21:10,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:21:10,576 INFO L933 BasicCegarLoop]: 1016 mSDtfsCounter, 4175 mSDsluCounter, 3732 mSDsCounter, 0 mSdLazyCounter, 3973 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1454.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4175 SdHoareTripleChecker+Valid, 4737 SdHoareTripleChecker+Invalid, 4039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.40ms SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1793.03ms IncrementalHoareTripleChecker+Time [2021-11-12 23:21:10,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4175 Valid, 4737 Invalid, 4039 Unknown, 0 Unchecked, 13.40ms Time], IncrementalHoareTripleChecker [66 Valid, 3973 Invalid, 0 Unknown, 0 Unchecked, 1793.03ms Time] [2021-11-12 23:21:10,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2389 states. [2021-11-12 23:21:10,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2389 to 1428. [2021-11-12 23:21:10,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.4024303073624018) internal successors, (1962), 1427 states have internal predecessors, (1962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:10,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1962 transitions. [2021-11-12 23:21:10,789 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1962 transitions. Word has length 110 [2021-11-12 23:21:10,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:21:10,790 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1962 transitions. [2021-11-12 23:21:10,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:10,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1962 transitions. [2021-11-12 23:21:10,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-12 23:21:10,793 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:21:10,793 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:21:10,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-12 23:21:10,794 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:21:10,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:21:10,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1204907087, now seen corresponding path program 1 times [2021-11-12 23:21:10,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:21:10,795 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660262528] [2021-11-12 23:21:10,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:21:10,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:21:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:21:10,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:21:10,917 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:21:10,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660262528] [2021-11-12 23:21:10,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660262528] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:21:10,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:21:10,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:21:10,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972947506] [2021-11-12 23:21:10,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:21:10,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:21:10,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:21:10,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:21:10,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:21:10,920 INFO L87 Difference]: Start difference. First operand 1428 states and 1962 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:13,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:21:13,172 INFO L93 Difference]: Finished difference Result 2615 states and 3577 transitions. [2021-11-12 23:21:13,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:21:13,173 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2021-11-12 23:21:13,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:21:13,175 INFO L225 Difference]: With dead ends: 2615 [2021-11-12 23:21:13,175 INFO L226 Difference]: Without dead ends: 2413 [2021-11-12 23:21:13,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:21:13,177 INFO L933 BasicCegarLoop]: 1019 mSDtfsCounter, 3143 mSDsluCounter, 3154 mSDsCounter, 0 mSdLazyCounter, 3711 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1373.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3143 SdHoareTripleChecker+Valid, 4164 SdHoareTripleChecker+Invalid, 3743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.91ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 3711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1715.60ms IncrementalHoareTripleChecker+Time [2021-11-12 23:21:13,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3143 Valid, 4164 Invalid, 3743 Unknown, 0 Unchecked, 13.91ms Time], IncrementalHoareTripleChecker [32 Valid, 3711 Invalid, 0 Unknown, 0 Unchecked, 1715.60ms Time] [2021-11-12 23:21:13,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2413 states. [2021-11-12 23:21:13,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2413 to 1428. [2021-11-12 23:21:13,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.401000714796283) internal successors, (1960), 1427 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:13,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1960 transitions. [2021-11-12 23:21:13,379 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1960 transitions. Word has length 110 [2021-11-12 23:21:13,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:21:13,380 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1960 transitions. [2021-11-12 23:21:13,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:13,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1960 transitions. [2021-11-12 23:21:13,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-12 23:21:13,383 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:21:13,383 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:21:13,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-12 23:21:13,384 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:21:13,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:21:13,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1404228506, now seen corresponding path program 1 times [2021-11-12 23:21:13,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:21:13,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941659586] [2021-11-12 23:21:13,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:21:13,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:21:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:21:13,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:21:13,511 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:21:13,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941659586] [2021-11-12 23:21:13,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941659586] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:21:13,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:21:13,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:21:13,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323342368] [2021-11-12 23:21:13,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:21:13,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:21:13,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:21:13,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:21:13,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:21:13,513 INFO L87 Difference]: Start difference. First operand 1428 states and 1960 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:15,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:21:15,800 INFO L93 Difference]: Finished difference Result 2609 states and 3571 transitions. [2021-11-12 23:21:15,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:21:15,801 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2021-11-12 23:21:15,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:21:15,803 INFO L225 Difference]: With dead ends: 2609 [2021-11-12 23:21:15,803 INFO L226 Difference]: Without dead ends: 2413 [2021-11-12 23:21:15,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:21:15,805 INFO L933 BasicCegarLoop]: 1164 mSDtfsCounter, 4365 mSDsluCounter, 3971 mSDsCounter, 0 mSdLazyCounter, 4037 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1448.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4365 SdHoareTripleChecker+Valid, 5124 SdHoareTripleChecker+Invalid, 4076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.02ms SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 4037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1773.73ms IncrementalHoareTripleChecker+Time [2021-11-12 23:21:15,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4365 Valid, 5124 Invalid, 4076 Unknown, 0 Unchecked, 13.02ms Time], IncrementalHoareTripleChecker [39 Valid, 4037 Invalid, 0 Unknown, 0 Unchecked, 1773.73ms Time] [2021-11-12 23:21:15,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2413 states. [2021-11-12 23:21:15,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2413 to 1428. [2021-11-12 23:21:15,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.3995711222301643) internal successors, (1958), 1427 states have internal predecessors, (1958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:15,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1958 transitions. [2021-11-12 23:21:15,974 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1958 transitions. Word has length 110 [2021-11-12 23:21:15,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:21:15,974 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1958 transitions. [2021-11-12 23:21:15,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:15,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1958 transitions. [2021-11-12 23:21:15,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-12 23:21:15,977 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:21:15,978 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:21:15,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-12 23:21:15,978 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:21:15,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:21:15,979 INFO L85 PathProgramCache]: Analyzing trace with hash -550740200, now seen corresponding path program 1 times [2021-11-12 23:21:15,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:21:15,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13787091] [2021-11-12 23:21:15,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:21:15,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:21:16,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:21:16,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:21:16,147 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:21:16,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13787091] [2021-11-12 23:21:16,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13787091] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:21:16,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:21:16,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:21:16,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820047575] [2021-11-12 23:21:16,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:21:16,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:21:16,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:21:16,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:21:16,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:21:16,150 INFO L87 Difference]: Start difference. First operand 1428 states and 1958 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:18,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:21:18,662 INFO L93 Difference]: Finished difference Result 2531 states and 3455 transitions. [2021-11-12 23:21:18,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:21:18,663 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2021-11-12 23:21:18,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:21:18,665 INFO L225 Difference]: With dead ends: 2531 [2021-11-12 23:21:18,665 INFO L226 Difference]: Without dead ends: 2389 [2021-11-12 23:21:18,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:21:18,667 INFO L933 BasicCegarLoop]: 1161 mSDtfsCounter, 4149 mSDsluCounter, 3980 mSDsCounter, 0 mSdLazyCounter, 4178 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1572.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4149 SdHoareTripleChecker+Valid, 5130 SdHoareTripleChecker+Invalid, 4244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.18ms SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 4178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1935.61ms IncrementalHoareTripleChecker+Time [2021-11-12 23:21:18,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4149 Valid, 5130 Invalid, 4244 Unknown, 0 Unchecked, 16.18ms Time], IncrementalHoareTripleChecker [66 Valid, 4178 Invalid, 0 Unknown, 0 Unchecked, 1935.61ms Time] [2021-11-12 23:21:18,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2389 states. [2021-11-12 23:21:18,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2389 to 1428. [2021-11-12 23:21:18,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.3981415296640458) internal successors, (1956), 1427 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:18,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1956 transitions. [2021-11-12 23:21:18,829 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1956 transitions. Word has length 110 [2021-11-12 23:21:18,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:21:18,830 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1956 transitions. [2021-11-12 23:21:18,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:18,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1956 transitions. [2021-11-12 23:21:18,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-12 23:21:18,832 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:21:18,832 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:21:18,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-12 23:21:18,833 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:21:18,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:21:18,833 INFO L85 PathProgramCache]: Analyzing trace with hash 915039500, now seen corresponding path program 1 times [2021-11-12 23:21:18,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:21:18,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472964085] [2021-11-12 23:21:18,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:21:18,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:21:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:21:18,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:21:18,960 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:21:18,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472964085] [2021-11-12 23:21:18,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472964085] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:21:18,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:21:18,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:21:18,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632747620] [2021-11-12 23:21:18,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:21:18,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:21:18,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:21:18,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:21:18,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:21:18,962 INFO L87 Difference]: Start difference. First operand 1428 states and 1956 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:21,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:21:21,341 INFO L93 Difference]: Finished difference Result 2541 states and 3464 transitions. [2021-11-12 23:21:21,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:21:21,341 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2021-11-12 23:21:21,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:21:21,343 INFO L225 Difference]: With dead ends: 2541 [2021-11-12 23:21:21,343 INFO L226 Difference]: Without dead ends: 2389 [2021-11-12 23:21:21,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:21:21,345 INFO L933 BasicCegarLoop]: 1161 mSDtfsCounter, 4153 mSDsluCounter, 3974 mSDsCounter, 0 mSdLazyCounter, 4172 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1512.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4153 SdHoareTripleChecker+Valid, 5124 SdHoareTripleChecker+Invalid, 4238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.58ms SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 4172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1850.16ms IncrementalHoareTripleChecker+Time [2021-11-12 23:21:21,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4153 Valid, 5124 Invalid, 4238 Unknown, 0 Unchecked, 13.58ms Time], IncrementalHoareTripleChecker [66 Valid, 4172 Invalid, 0 Unknown, 0 Unchecked, 1850.16ms Time] [2021-11-12 23:21:21,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2389 states. [2021-11-12 23:21:21,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2389 to 1428. [2021-11-12 23:21:21,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.396711937097927) internal successors, (1954), 1427 states have internal predecessors, (1954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:21,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1954 transitions. [2021-11-12 23:21:21,513 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1954 transitions. Word has length 110 [2021-11-12 23:21:21,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:21:21,513 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1954 transitions. [2021-11-12 23:21:21,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:21,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1954 transitions. [2021-11-12 23:21:21,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-12 23:21:21,515 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:21:21,515 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:21:21,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-12 23:21:21,516 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:21:21,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:21:21,516 INFO L85 PathProgramCache]: Analyzing trace with hash -382850538, now seen corresponding path program 1 times [2021-11-12 23:21:21,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:21:21,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245837768] [2021-11-12 23:21:21,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:21:21,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:21:21,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:21:21,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:21:21,642 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:21:21,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245837768] [2021-11-12 23:21:21,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245837768] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:21:21,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:21:21,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:21:21,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985955904] [2021-11-12 23:21:21,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:21:21,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:21:21,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:21:21,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:21:21,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:21:21,644 INFO L87 Difference]: Start difference. First operand 1428 states and 1954 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:23,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:21:23,980 INFO L93 Difference]: Finished difference Result 2631 states and 3592 transitions. [2021-11-12 23:21:23,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:21:23,981 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2021-11-12 23:21:23,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:21:23,983 INFO L225 Difference]: With dead ends: 2631 [2021-11-12 23:21:23,983 INFO L226 Difference]: Without dead ends: 2413 [2021-11-12 23:21:23,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:21:23,985 INFO L933 BasicCegarLoop]: 1207 mSDtfsCounter, 4221 mSDsluCounter, 4047 mSDsCounter, 0 mSdLazyCounter, 4214 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1476.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4221 SdHoareTripleChecker+Valid, 5243 SdHoareTripleChecker+Invalid, 4252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.34ms SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 4214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1811.92ms IncrementalHoareTripleChecker+Time [2021-11-12 23:21:23,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4221 Valid, 5243 Invalid, 4252 Unknown, 0 Unchecked, 13.34ms Time], IncrementalHoareTripleChecker [38 Valid, 4214 Invalid, 0 Unknown, 0 Unchecked, 1811.92ms Time] [2021-11-12 23:21:23,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2413 states. [2021-11-12 23:21:24,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2413 to 1428. [2021-11-12 23:21:24,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.3952823445318083) internal successors, (1952), 1427 states have internal predecessors, (1952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:24,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1952 transitions. [2021-11-12 23:21:24,186 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1952 transitions. Word has length 110 [2021-11-12 23:21:24,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:21:24,186 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1952 transitions. [2021-11-12 23:21:24,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:24,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1952 transitions. [2021-11-12 23:21:24,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-12 23:21:24,189 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:21:24,189 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:21:24,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-12 23:21:24,190 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:21:24,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:21:24,190 INFO L85 PathProgramCache]: Analyzing trace with hash -715976179, now seen corresponding path program 1 times [2021-11-12 23:21:24,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:21:24,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105279348] [2021-11-12 23:21:24,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:21:24,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:21:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:21:24,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:21:24,300 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:21:24,301 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105279348] [2021-11-12 23:21:24,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105279348] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:21:24,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:21:24,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:21:24,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105873601] [2021-11-12 23:21:24,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:21:24,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:21:24,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:21:24,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:21:24,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:21:24,303 INFO L87 Difference]: Start difference. First operand 1428 states and 1952 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:26,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:21:26,548 INFO L93 Difference]: Finished difference Result 2783 states and 3795 transitions. [2021-11-12 23:21:26,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:21:26,548 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2021-11-12 23:21:26,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:21:26,551 INFO L225 Difference]: With dead ends: 2783 [2021-11-12 23:21:26,551 INFO L226 Difference]: Without dead ends: 2425 [2021-11-12 23:21:26,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:21:26,553 INFO L933 BasicCegarLoop]: 1139 mSDtfsCounter, 4458 mSDsluCounter, 3274 mSDsCounter, 0 mSdLazyCounter, 3821 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1328.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4458 SdHoareTripleChecker+Valid, 4404 SdHoareTripleChecker+Invalid, 3849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.20ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 3821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1650.47ms IncrementalHoareTripleChecker+Time [2021-11-12 23:21:26,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4458 Valid, 4404 Invalid, 3849 Unknown, 0 Unchecked, 14.20ms Time], IncrementalHoareTripleChecker [28 Valid, 3821 Invalid, 0 Unknown, 0 Unchecked, 1650.47ms Time] [2021-11-12 23:21:26,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2021-11-12 23:21:26,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 1428. [2021-11-12 23:21:26,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.3938527519656898) internal successors, (1950), 1427 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:26,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1950 transitions. [2021-11-12 23:21:26,779 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1950 transitions. Word has length 110 [2021-11-12 23:21:26,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:21:26,780 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1950 transitions. [2021-11-12 23:21:26,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 7 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:26,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1950 transitions. [2021-11-12 23:21:26,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-12 23:21:26,783 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:21:26,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:21:26,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-12 23:21:26,783 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:21:26,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:21:26,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1240220365, now seen corresponding path program 1 times [2021-11-12 23:21:26,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:21:26,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769735713] [2021-11-12 23:21:26,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:21:26,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:21:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:21:26,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:21:26,909 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:21:26,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769735713] [2021-11-12 23:21:26,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769735713] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:21:26,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:21:26,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:21:26,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844276601] [2021-11-12 23:21:26,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:21:26,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:21:26,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:21:26,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:21:26,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:21:26,913 INFO L87 Difference]: Start difference. First operand 1428 states and 1950 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:29,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:21:29,063 INFO L93 Difference]: Finished difference Result 2447 states and 3310 transitions. [2021-11-12 23:21:29,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:21:29,064 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-11-12 23:21:29,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:21:29,066 INFO L225 Difference]: With dead ends: 2447 [2021-11-12 23:21:29,066 INFO L226 Difference]: Without dead ends: 2341 [2021-11-12 23:21:29,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:21:29,068 INFO L933 BasicCegarLoop]: 824 mSDtfsCounter, 4946 mSDsluCounter, 2679 mSDsCounter, 0 mSdLazyCounter, 3209 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1230.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4946 SdHoareTripleChecker+Valid, 3496 SdHoareTripleChecker+Invalid, 3383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.42ms SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 3209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1524.48ms IncrementalHoareTripleChecker+Time [2021-11-12 23:21:29,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4946 Valid, 3496 Invalid, 3383 Unknown, 0 Unchecked, 14.42ms Time], IncrementalHoareTripleChecker [174 Valid, 3209 Invalid, 0 Unknown, 0 Unchecked, 1524.48ms Time] [2021-11-12 23:21:29,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2341 states. [2021-11-12 23:21:29,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2341 to 1428. [2021-11-12 23:21:29,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1399 states have (on average 1.3931379556826304) internal successors, (1949), 1427 states have internal predecessors, (1949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:29,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1949 transitions. [2021-11-12 23:21:29,260 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1949 transitions. Word has length 111 [2021-11-12 23:21:29,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:21:29,260 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1949 transitions. [2021-11-12 23:21:29,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:29,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1949 transitions. [2021-11-12 23:21:29,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:21:29,263 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:21:29,263 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:21:29,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-12 23:21:29,263 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:21:29,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:21:29,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1750032333, now seen corresponding path program 1 times [2021-11-12 23:21:29,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:21:29,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187069068] [2021-11-12 23:21:29,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:21:29,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:21:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:21:29,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:21:29,472 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:21:29,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187069068] [2021-11-12 23:21:29,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187069068] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:21:29,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:21:29,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:21:29,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085399737] [2021-11-12 23:21:29,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:21:29,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:21:29,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:21:29,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:21:29,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:21:29,475 INFO L87 Difference]: Start difference. First operand 1428 states and 1949 transitions. Second operand has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:33,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:21:33,697 INFO L93 Difference]: Finished difference Result 3154 states and 4276 transitions. [2021-11-12 23:21:33,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 23:21:33,697 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:21:33,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:21:33,700 INFO L225 Difference]: With dead ends: 3154 [2021-11-12 23:21:33,700 INFO L226 Difference]: Without dead ends: 3025 [2021-11-12 23:21:33,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-11-12 23:21:33,702 INFO L933 BasicCegarLoop]: 1068 mSDtfsCounter, 7910 mSDsluCounter, 4606 mSDsCounter, 0 mSdLazyCounter, 5193 mSolverCounterSat, 802 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2318.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7910 SdHoareTripleChecker+Valid, 5660 SdHoareTripleChecker+Invalid, 5995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.20ms SdHoareTripleChecker+Time, 802 IncrementalHoareTripleChecker+Valid, 5193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2825.55ms IncrementalHoareTripleChecker+Time [2021-11-12 23:21:33,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7910 Valid, 5660 Invalid, 5995 Unknown, 0 Unchecked, 28.20ms Time], IncrementalHoareTripleChecker [802 Valid, 5193 Invalid, 0 Unknown, 0 Unchecked, 2825.55ms Time] [2021-11-12 23:21:33,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3025 states. [2021-11-12 23:21:34,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3025 to 1432. [2021-11-12 23:21:34,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1403 states have (on average 1.3920171062009978) internal successors, (1953), 1431 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:34,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 1953 transitions. [2021-11-12 23:21:34,025 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 1953 transitions. Word has length 112 [2021-11-12 23:21:34,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:21:34,025 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 1953 transitions. [2021-11-12 23:21:34,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:34,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 1953 transitions. [2021-11-12 23:21:34,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:21:34,028 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:21:34,029 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:21:34,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-12 23:21:34,030 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:21:34,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:21:34,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1558151312, now seen corresponding path program 1 times [2021-11-12 23:21:34,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:21:34,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615764293] [2021-11-12 23:21:34,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:21:34,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:21:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:21:34,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:21:34,165 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:21:34,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615764293] [2021-11-12 23:21:34,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615764293] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:21:34,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:21:34,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:21:34,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105278208] [2021-11-12 23:21:34,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:21:34,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:21:34,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:21:34,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:21:34,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:21:34,169 INFO L87 Difference]: Start difference. First operand 1432 states and 1953 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:37,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:21:37,020 INFO L93 Difference]: Finished difference Result 2457 states and 3322 transitions. [2021-11-12 23:21:37,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:21:37,020 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:21:37,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:21:37,023 INFO L225 Difference]: With dead ends: 2457 [2021-11-12 23:21:37,023 INFO L226 Difference]: Without dead ends: 2345 [2021-11-12 23:21:37,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:21:37,024 INFO L933 BasicCegarLoop]: 850 mSDtfsCounter, 4855 mSDsluCounter, 2736 mSDsCounter, 0 mSdLazyCounter, 3324 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1621.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4855 SdHoareTripleChecker+Valid, 3579 SdHoareTripleChecker+Invalid, 3495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.21ms SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 3324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2002.55ms IncrementalHoareTripleChecker+Time [2021-11-12 23:21:37,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4855 Valid, 3579 Invalid, 3495 Unknown, 0 Unchecked, 23.21ms Time], IncrementalHoareTripleChecker [171 Valid, 3324 Invalid, 0 Unknown, 0 Unchecked, 2002.55ms Time] [2021-11-12 23:21:37,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2345 states. [2021-11-12 23:21:37,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2345 to 1432. [2021-11-12 23:21:37,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1403 states have (on average 1.391304347826087) internal successors, (1952), 1431 states have internal predecessors, (1952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:37,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 1952 transitions. [2021-11-12 23:21:37,253 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 1952 transitions. Word has length 112 [2021-11-12 23:21:37,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:21:37,253 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 1952 transitions. [2021-11-12 23:21:37,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:37,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 1952 transitions. [2021-11-12 23:21:37,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:21:37,256 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:21:37,256 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:21:37,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-12 23:21:37,256 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:21:37,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:21:37,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1896693420, now seen corresponding path program 1 times [2021-11-12 23:21:37,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:21:37,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425371890] [2021-11-12 23:21:37,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:21:37,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:21:37,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:21:37,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:21:37,468 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:21:37,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425371890] [2021-11-12 23:21:37,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425371890] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:21:37,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:21:37,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:21:37,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864927058] [2021-11-12 23:21:37,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:21:37,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:21:37,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:21:37,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:21:37,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:21:37,471 INFO L87 Difference]: Start difference. First operand 1432 states and 1952 transitions. Second operand has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:41,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:21:41,306 INFO L93 Difference]: Finished difference Result 3028 states and 4090 transitions. [2021-11-12 23:21:41,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 23:21:41,306 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:21:41,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:21:41,309 INFO L225 Difference]: With dead ends: 3028 [2021-11-12 23:21:41,309 INFO L226 Difference]: Without dead ends: 2916 [2021-11-12 23:21:41,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-11-12 23:21:41,311 INFO L933 BasicCegarLoop]: 866 mSDtfsCounter, 8054 mSDsluCounter, 3050 mSDsCounter, 0 mSdLazyCounter, 3756 mSolverCounterSat, 1062 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1980.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8054 SdHoareTripleChecker+Valid, 3904 SdHoareTripleChecker+Invalid, 4818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.99ms SdHoareTripleChecker+Time, 1062 IncrementalHoareTripleChecker+Valid, 3756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2409.85ms IncrementalHoareTripleChecker+Time [2021-11-12 23:21:41,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8054 Valid, 3904 Invalid, 4818 Unknown, 0 Unchecked, 20.99ms Time], IncrementalHoareTripleChecker [1062 Valid, 3756 Invalid, 0 Unknown, 0 Unchecked, 2409.85ms Time] [2021-11-12 23:21:41,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2916 states. [2021-11-12 23:21:41,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2916 to 1436. [2021-11-12 23:21:41,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1407 states have (on average 1.3901918976545842) internal successors, (1956), 1435 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:41,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1956 transitions. [2021-11-12 23:21:41,632 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1956 transitions. Word has length 112 [2021-11-12 23:21:41,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:21:41,632 INFO L470 AbstractCegarLoop]: Abstraction has 1436 states and 1956 transitions. [2021-11-12 23:21:41,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:41,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1956 transitions. [2021-11-12 23:21:41,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:21:41,634 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:21:41,634 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:21:41,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-12 23:21:41,635 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:21:41,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:21:41,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1908379433, now seen corresponding path program 1 times [2021-11-12 23:21:41,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:21:41,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903247654] [2021-11-12 23:21:41,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:21:41,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:21:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:21:41,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:21:41,760 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:21:41,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903247654] [2021-11-12 23:21:41,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903247654] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:21:41,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:21:41,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:21:41,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989318654] [2021-11-12 23:21:41,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:21:41,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:21:41,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:21:41,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:21:41,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:21:41,763 INFO L87 Difference]: Start difference. First operand 1436 states and 1956 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:44,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:21:44,067 INFO L93 Difference]: Finished difference Result 2455 states and 3318 transitions. [2021-11-12 23:21:44,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:21:44,068 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:21:44,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:21:44,070 INFO L225 Difference]: With dead ends: 2455 [2021-11-12 23:21:44,071 INFO L226 Difference]: Without dead ends: 2345 [2021-11-12 23:21:44,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:21:44,072 INFO L933 BasicCegarLoop]: 853 mSDtfsCounter, 4848 mSDsluCounter, 2753 mSDsCounter, 0 mSdLazyCounter, 3299 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1286.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4848 SdHoareTripleChecker+Valid, 3596 SdHoareTripleChecker+Invalid, 3470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.26ms SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 3299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1588.73ms IncrementalHoareTripleChecker+Time [2021-11-12 23:21:44,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4848 Valid, 3596 Invalid, 3470 Unknown, 0 Unchecked, 14.26ms Time], IncrementalHoareTripleChecker [171 Valid, 3299 Invalid, 0 Unknown, 0 Unchecked, 1588.73ms Time] [2021-11-12 23:21:44,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2345 states. [2021-11-12 23:21:44,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2345 to 1436. [2021-11-12 23:21:44,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1407 states have (on average 1.3894811656005686) internal successors, (1955), 1435 states have internal predecessors, (1955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:44,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1955 transitions. [2021-11-12 23:21:44,370 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1955 transitions. Word has length 112 [2021-11-12 23:21:44,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:21:44,371 INFO L470 AbstractCegarLoop]: Abstraction has 1436 states and 1955 transitions. [2021-11-12 23:21:44,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:44,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1955 transitions. [2021-11-12 23:21:44,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:21:44,373 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:21:44,373 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:21:44,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-12 23:21:44,373 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:21:44,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:21:44,374 INFO L85 PathProgramCache]: Analyzing trace with hash -729427139, now seen corresponding path program 1 times [2021-11-12 23:21:44,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:21:44,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913547894] [2021-11-12 23:21:44,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:21:44,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:21:44,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:21:44,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:21:44,577 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:21:44,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913547894] [2021-11-12 23:21:44,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913547894] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:21:44,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:21:44,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:21:44,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860683629] [2021-11-12 23:21:44,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:21:44,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:21:44,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:21:44,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:21:44,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:21:44,579 INFO L87 Difference]: Start difference. First operand 1436 states and 1955 transitions. Second operand has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:48,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:21:48,648 INFO L93 Difference]: Finished difference Result 3024 states and 4084 transitions. [2021-11-12 23:21:48,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 23:21:48,649 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:21:48,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:21:48,651 INFO L225 Difference]: With dead ends: 3024 [2021-11-12 23:21:48,651 INFO L226 Difference]: Without dead ends: 2914 [2021-11-12 23:21:48,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-11-12 23:21:48,652 INFO L933 BasicCegarLoop]: 861 mSDtfsCounter, 8154 mSDsluCounter, 3029 mSDsCounter, 0 mSdLazyCounter, 3721 mSolverCounterSat, 1069 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2059.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8154 SdHoareTripleChecker+Valid, 3880 SdHoareTripleChecker+Invalid, 4790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.25ms SdHoareTripleChecker+Time, 1069 IncrementalHoareTripleChecker+Valid, 3721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2504.12ms IncrementalHoareTripleChecker+Time [2021-11-12 23:21:48,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8154 Valid, 3880 Invalid, 4790 Unknown, 0 Unchecked, 21.25ms Time], IncrementalHoareTripleChecker [1069 Valid, 3721 Invalid, 0 Unknown, 0 Unchecked, 2504.12ms Time] [2021-11-12 23:21:48,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2021-11-12 23:21:48,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 1440. [2021-11-12 23:21:48,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1411 states have (on average 1.3883770375620128) internal successors, (1959), 1439 states have internal predecessors, (1959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:48,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 1959 transitions. [2021-11-12 23:21:48,891 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 1959 transitions. Word has length 112 [2021-11-12 23:21:48,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:21:48,891 INFO L470 AbstractCegarLoop]: Abstraction has 1440 states and 1959 transitions. [2021-11-12 23:21:48,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:48,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 1959 transitions. [2021-11-12 23:21:48,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:21:48,894 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:21:48,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:21:48,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-11-12 23:21:48,894 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:21:48,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:21:48,894 INFO L85 PathProgramCache]: Analyzing trace with hash 606419033, now seen corresponding path program 1 times [2021-11-12 23:21:48,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:21:48,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600078314] [2021-11-12 23:21:48,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:21:48,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:21:48,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:21:49,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:21:49,013 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:21:49,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600078314] [2021-11-12 23:21:49,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600078314] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:21:49,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:21:49,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:21:49,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611223931] [2021-11-12 23:21:49,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:21:49,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:21:49,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:21:49,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:21:49,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:21:49,015 INFO L87 Difference]: Start difference. First operand 1440 states and 1959 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:51,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:21:51,585 INFO L93 Difference]: Finished difference Result 2520 states and 3421 transitions. [2021-11-12 23:21:51,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:21:51,586 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:21:51,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:21:51,587 INFO L225 Difference]: With dead ends: 2520 [2021-11-12 23:21:51,587 INFO L226 Difference]: Without dead ends: 2397 [2021-11-12 23:21:51,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:21:51,588 INFO L933 BasicCegarLoop]: 1040 mSDtfsCounter, 4401 mSDsluCounter, 3293 mSDsCounter, 0 mSdLazyCounter, 3850 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1428.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4401 SdHoareTripleChecker+Valid, 4325 SdHoareTripleChecker+Invalid, 3931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.68ms SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 3850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1761.44ms IncrementalHoareTripleChecker+Time [2021-11-12 23:21:51,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4401 Valid, 4325 Invalid, 3931 Unknown, 0 Unchecked, 16.68ms Time], IncrementalHoareTripleChecker [81 Valid, 3850 Invalid, 0 Unknown, 0 Unchecked, 1761.44ms Time] [2021-11-12 23:21:51,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2397 states. [2021-11-12 23:21:51,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2397 to 1440. [2021-11-12 23:21:51,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1411 states have (on average 1.3876683203401843) internal successors, (1958), 1439 states have internal predecessors, (1958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:51,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 1958 transitions. [2021-11-12 23:21:51,838 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 1958 transitions. Word has length 112 [2021-11-12 23:21:51,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:21:51,838 INFO L470 AbstractCegarLoop]: Abstraction has 1440 states and 1958 transitions. [2021-11-12 23:21:51,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:51,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 1958 transitions. [2021-11-12 23:21:51,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:21:51,840 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:21:51,841 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:21:51,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-11-12 23:21:51,841 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:21:51,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:21:51,841 INFO L85 PathProgramCache]: Analyzing trace with hash 497794837, now seen corresponding path program 1 times [2021-11-12 23:21:51,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:21:51,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982816907] [2021-11-12 23:21:51,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:21:51,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:21:51,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:21:51,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:21:51,953 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:21:51,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982816907] [2021-11-12 23:21:51,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982816907] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:21:51,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:21:51,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:21:51,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114873802] [2021-11-12 23:21:51,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:21:51,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:21:51,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:21:51,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:21:51,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:21:51,956 INFO L87 Difference]: Start difference. First operand 1440 states and 1958 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:54,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:21:54,244 INFO L93 Difference]: Finished difference Result 2461 states and 3321 transitions. [2021-11-12 23:21:54,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:21:54,245 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:21:54,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:21:54,248 INFO L225 Difference]: With dead ends: 2461 [2021-11-12 23:21:54,248 INFO L226 Difference]: Without dead ends: 2345 [2021-11-12 23:21:54,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:21:54,251 INFO L933 BasicCegarLoop]: 835 mSDtfsCounter, 4924 mSDsluCounter, 2688 mSDsCounter, 0 mSdLazyCounter, 3208 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1245.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4924 SdHoareTripleChecker+Valid, 3516 SdHoareTripleChecker+Invalid, 3380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.47ms SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 3208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1534.27ms IncrementalHoareTripleChecker+Time [2021-11-12 23:21:54,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4924 Valid, 3516 Invalid, 3380 Unknown, 0 Unchecked, 13.47ms Time], IncrementalHoareTripleChecker [172 Valid, 3208 Invalid, 0 Unknown, 0 Unchecked, 1534.27ms Time] [2021-11-12 23:21:54,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2345 states. [2021-11-12 23:21:54,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2345 to 1440. [2021-11-12 23:21:54,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1411 states have (on average 1.3869596031183558) internal successors, (1957), 1439 states have internal predecessors, (1957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:54,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 1957 transitions. [2021-11-12 23:21:54,526 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 1957 transitions. Word has length 112 [2021-11-12 23:21:54,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:21:54,526 INFO L470 AbstractCegarLoop]: Abstraction has 1440 states and 1957 transitions. [2021-11-12 23:21:54,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:54,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 1957 transitions. [2021-11-12 23:21:54,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:21:54,528 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:21:54,528 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:21:54,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-11-12 23:21:54,529 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:21:54,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:21:54,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1476130129, now seen corresponding path program 1 times [2021-11-12 23:21:54,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:21:54,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056813409] [2021-11-12 23:21:54,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:21:54,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:21:54,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:21:54,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:21:54,726 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:21:54,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056813409] [2021-11-12 23:21:54,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056813409] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:21:54,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:21:54,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:21:54,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105982227] [2021-11-12 23:21:54,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:21:54,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:21:54,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:21:54,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:21:54,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:21:54,730 INFO L87 Difference]: Start difference. First operand 1440 states and 1957 transitions. Second operand has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:59,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:21:59,054 INFO L93 Difference]: Finished difference Result 3180 states and 4296 transitions. [2021-11-12 23:21:59,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 23:21:59,054 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:21:59,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:21:59,057 INFO L225 Difference]: With dead ends: 3180 [2021-11-12 23:21:59,057 INFO L226 Difference]: Without dead ends: 3042 [2021-11-12 23:21:59,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-11-12 23:21:59,058 INFO L933 BasicCegarLoop]: 1072 mSDtfsCounter, 7649 mSDsluCounter, 3636 mSDsCounter, 0 mSdLazyCounter, 4337 mSolverCounterSat, 803 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2176.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7649 SdHoareTripleChecker+Valid, 4696 SdHoareTripleChecker+Invalid, 5140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.83ms SdHoareTripleChecker+Time, 803 IncrementalHoareTripleChecker+Valid, 4337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2629.82ms IncrementalHoareTripleChecker+Time [2021-11-12 23:21:59,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7649 Valid, 4696 Invalid, 5140 Unknown, 0 Unchecked, 22.83ms Time], IncrementalHoareTripleChecker [803 Valid, 4337 Invalid, 0 Unknown, 0 Unchecked, 2629.82ms Time] [2021-11-12 23:21:59,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3042 states. [2021-11-12 23:21:59,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3042 to 1444. [2021-11-12 23:21:59,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1415 states have (on average 1.3858657243816255) internal successors, (1961), 1443 states have internal predecessors, (1961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:59,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 1961 transitions. [2021-11-12 23:21:59,323 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 1961 transitions. Word has length 112 [2021-11-12 23:21:59,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:21:59,324 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 1961 transitions. [2021-11-12 23:21:59,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:59,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 1961 transitions. [2021-11-12 23:21:59,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:21:59,326 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:21:59,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:21:59,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-11-12 23:21:59,327 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:21:59,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:21:59,327 INFO L85 PathProgramCache]: Analyzing trace with hash 865897012, now seen corresponding path program 1 times [2021-11-12 23:21:59,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:21:59,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730422346] [2021-11-12 23:21:59,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:21:59,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:21:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:21:59,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:21:59,525 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:21:59,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730422346] [2021-11-12 23:21:59,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730422346] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:21:59,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:21:59,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:21:59,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820420572] [2021-11-12 23:21:59,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:21:59,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:21:59,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:21:59,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:21:59,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:21:59,527 INFO L87 Difference]: Start difference. First operand 1444 states and 1961 transitions. Second operand has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:03,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:22:03,533 INFO L93 Difference]: Finished difference Result 3040 states and 4097 transitions. [2021-11-12 23:22:03,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 23:22:03,534 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:22:03,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:22:03,536 INFO L225 Difference]: With dead ends: 3040 [2021-11-12 23:22:03,536 INFO L226 Difference]: Without dead ends: 2924 [2021-11-12 23:22:03,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-11-12 23:22:03,537 INFO L933 BasicCegarLoop]: 874 mSDtfsCounter, 8091 mSDsluCounter, 3060 mSDsCounter, 0 mSdLazyCounter, 3742 mSolverCounterSat, 1060 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1943.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8091 SdHoareTripleChecker+Valid, 3922 SdHoareTripleChecker+Invalid, 4802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.28ms SdHoareTripleChecker+Time, 1060 IncrementalHoareTripleChecker+Valid, 3742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2376.52ms IncrementalHoareTripleChecker+Time [2021-11-12 23:22:03,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8091 Valid, 3922 Invalid, 4802 Unknown, 0 Unchecked, 19.28ms Time], IncrementalHoareTripleChecker [1060 Valid, 3742 Invalid, 0 Unknown, 0 Unchecked, 2376.52ms Time] [2021-11-12 23:22:03,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2021-11-12 23:22:03,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 1448. [2021-11-12 23:22:03,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1419 states have (on average 1.3847780126849893) internal successors, (1965), 1447 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:03,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 1965 transitions. [2021-11-12 23:22:03,808 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 1965 transitions. Word has length 112 [2021-11-12 23:22:03,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:22:03,809 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 1965 transitions. [2021-11-12 23:22:03,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:03,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 1965 transitions. [2021-11-12 23:22:03,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:22:03,812 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:03,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:03,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-11-12 23:22:03,812 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:22:03,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:03,813 INFO L85 PathProgramCache]: Analyzing trace with hash -986214715, now seen corresponding path program 1 times [2021-11-12 23:22:03,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:22:03,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749814510] [2021-11-12 23:22:03,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:03,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:22:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:22:03,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:03,929 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:22:03,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749814510] [2021-11-12 23:22:03,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749814510] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:22:03,930 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:22:03,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:22:03,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159802510] [2021-11-12 23:22:03,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:22:03,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:22:03,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:22:03,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:22:03,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:22:03,932 INFO L87 Difference]: Start difference. First operand 1448 states and 1965 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:06,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:22:06,477 INFO L93 Difference]: Finished difference Result 2461 states and 3319 transitions. [2021-11-12 23:22:06,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:22:06,478 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:22:06,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:22:06,480 INFO L225 Difference]: With dead ends: 2461 [2021-11-12 23:22:06,480 INFO L226 Difference]: Without dead ends: 2349 [2021-11-12 23:22:06,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:22:06,481 INFO L933 BasicCegarLoop]: 845 mSDtfsCounter, 4852 mSDsluCounter, 2725 mSDsCounter, 0 mSdLazyCounter, 3284 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1348.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4852 SdHoareTripleChecker+Valid, 3563 SdHoareTripleChecker+Invalid, 3453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.96ms SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 3284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1654.60ms IncrementalHoareTripleChecker+Time [2021-11-12 23:22:06,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4852 Valid, 3563 Invalid, 3453 Unknown, 0 Unchecked, 14.96ms Time], IncrementalHoareTripleChecker [169 Valid, 3284 Invalid, 0 Unknown, 0 Unchecked, 1654.60ms Time] [2021-11-12 23:22:06,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2349 states. [2021-11-12 23:22:06,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2349 to 1448. [2021-11-12 23:22:06,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1419 states have (on average 1.3840732910500353) internal successors, (1964), 1447 states have internal predecessors, (1964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:06,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 1964 transitions. [2021-11-12 23:22:06,748 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 1964 transitions. Word has length 112 [2021-11-12 23:22:06,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:22:06,748 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 1964 transitions. [2021-11-12 23:22:06,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:06,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 1964 transitions. [2021-11-12 23:22:06,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:22:06,750 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:06,750 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:06,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-11-12 23:22:06,750 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:22:06,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:06,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1285263200, now seen corresponding path program 1 times [2021-11-12 23:22:06,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:22:06,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429915225] [2021-11-12 23:22:06,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:06,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:22:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:22:06,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:06,939 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:22:06,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429915225] [2021-11-12 23:22:06,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429915225] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:22:06,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:22:06,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:22:06,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565682475] [2021-11-12 23:22:06,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:22:06,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:22:06,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:22:06,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:22:06,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:22:06,941 INFO L87 Difference]: Start difference. First operand 1448 states and 1964 transitions. Second operand has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:11,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:22:11,005 INFO L93 Difference]: Finished difference Result 3032 states and 4087 transitions. [2021-11-12 23:22:11,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 23:22:11,006 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:22:11,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:22:11,008 INFO L225 Difference]: With dead ends: 3032 [2021-11-12 23:22:11,008 INFO L226 Difference]: Without dead ends: 2920 [2021-11-12 23:22:11,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-11-12 23:22:11,009 INFO L933 BasicCegarLoop]: 862 mSDtfsCounter, 8107 mSDsluCounter, 3051 mSDsCounter, 0 mSdLazyCounter, 3715 mSolverCounterSat, 1062 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1943.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8107 SdHoareTripleChecker+Valid, 3901 SdHoareTripleChecker+Invalid, 4777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.05ms SdHoareTripleChecker+Time, 1062 IncrementalHoareTripleChecker+Valid, 3715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2363.44ms IncrementalHoareTripleChecker+Time [2021-11-12 23:22:11,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8107 Valid, 3901 Invalid, 4777 Unknown, 0 Unchecked, 20.05ms Time], IncrementalHoareTripleChecker [1062 Valid, 3715 Invalid, 0 Unknown, 0 Unchecked, 2363.44ms Time] [2021-11-12 23:22:11,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2920 states. [2021-11-12 23:22:11,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2920 to 1452. [2021-11-12 23:22:11,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1452 states, 1423 states have (on average 1.382993675333802) internal successors, (1968), 1451 states have internal predecessors, (1968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:11,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 1968 transitions. [2021-11-12 23:22:11,287 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 1968 transitions. Word has length 112 [2021-11-12 23:22:11,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:22:11,288 INFO L470 AbstractCegarLoop]: Abstraction has 1452 states and 1968 transitions. [2021-11-12 23:22:11,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:11,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 1968 transitions. [2021-11-12 23:22:11,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:22:11,290 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:11,290 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:11,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-11-12 23:22:11,290 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:22:11,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:11,290 INFO L85 PathProgramCache]: Analyzing trace with hash 2038403798, now seen corresponding path program 1 times [2021-11-12 23:22:11,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:22:11,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770427363] [2021-11-12 23:22:11,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:11,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:22:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:22:11,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:11,406 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:22:11,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770427363] [2021-11-12 23:22:11,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770427363] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:22:11,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:22:11,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:22:11,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376249663] [2021-11-12 23:22:11,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:22:11,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:22:11,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:22:11,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:22:11,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:22:11,408 INFO L87 Difference]: Start difference. First operand 1452 states and 1968 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:13,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:22:13,937 INFO L93 Difference]: Finished difference Result 2455 states and 3308 transitions. [2021-11-12 23:22:13,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:22:13,938 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:22:13,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:22:13,941 INFO L225 Difference]: With dead ends: 2455 [2021-11-12 23:22:13,941 INFO L226 Difference]: Without dead ends: 2349 [2021-11-12 23:22:13,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:22:13,943 INFO L933 BasicCegarLoop]: 820 mSDtfsCounter, 4950 mSDsluCounter, 2658 mSDsCounter, 0 mSdLazyCounter, 3153 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1319.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4950 SdHoareTripleChecker+Valid, 3471 SdHoareTripleChecker+Invalid, 3325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.60ms SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 3153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1646.81ms IncrementalHoareTripleChecker+Time [2021-11-12 23:22:13,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4950 Valid, 3471 Invalid, 3325 Unknown, 0 Unchecked, 13.60ms Time], IncrementalHoareTripleChecker [172 Valid, 3153 Invalid, 0 Unknown, 0 Unchecked, 1646.81ms Time] [2021-11-12 23:22:13,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2349 states. [2021-11-12 23:22:14,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2349 to 1452. [2021-11-12 23:22:14,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1452 states, 1423 states have (on average 1.382290934645116) internal successors, (1967), 1451 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:14,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 1967 transitions. [2021-11-12 23:22:14,279 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 1967 transitions. Word has length 112 [2021-11-12 23:22:14,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:22:14,279 INFO L470 AbstractCegarLoop]: Abstraction has 1452 states and 1967 transitions. [2021-11-12 23:22:14,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:14,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 1967 transitions. [2021-11-12 23:22:14,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:22:14,282 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:14,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:14,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-11-12 23:22:14,282 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:22:14,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:14,282 INFO L85 PathProgramCache]: Analyzing trace with hash -946721092, now seen corresponding path program 1 times [2021-11-12 23:22:14,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:22:14,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752871224] [2021-11-12 23:22:14,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:14,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:22:14,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:22:14,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:14,396 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:22:14,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752871224] [2021-11-12 23:22:14,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752871224] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:22:14,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:22:14,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:22:14,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763475115] [2021-11-12 23:22:14,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:22:14,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:22:14,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:22:14,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:22:14,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:22:14,398 INFO L87 Difference]: Start difference. First operand 1452 states and 1967 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:16,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:22:16,820 INFO L93 Difference]: Finished difference Result 2461 states and 3316 transitions. [2021-11-12 23:22:16,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:22:16,821 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:22:16,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:22:16,824 INFO L225 Difference]: With dead ends: 2461 [2021-11-12 23:22:16,824 INFO L226 Difference]: Without dead ends: 2349 [2021-11-12 23:22:16,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:22:16,826 INFO L933 BasicCegarLoop]: 820 mSDtfsCounter, 4955 mSDsluCounter, 2652 mSDsCounter, 0 mSdLazyCounter, 3146 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1250.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4955 SdHoareTripleChecker+Valid, 3465 SdHoareTripleChecker+Invalid, 3318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.54ms SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 3146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1536.67ms IncrementalHoareTripleChecker+Time [2021-11-12 23:22:16,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4955 Valid, 3465 Invalid, 3318 Unknown, 0 Unchecked, 12.54ms Time], IncrementalHoareTripleChecker [172 Valid, 3146 Invalid, 0 Unknown, 0 Unchecked, 1536.67ms Time] [2021-11-12 23:22:16,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2349 states. [2021-11-12 23:22:17,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2349 to 1452. [2021-11-12 23:22:17,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1452 states, 1423 states have (on average 1.38158819395643) internal successors, (1966), 1451 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:17,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 1966 transitions. [2021-11-12 23:22:17,113 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 1966 transitions. Word has length 112 [2021-11-12 23:22:17,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:22:17,113 INFO L470 AbstractCegarLoop]: Abstraction has 1452 states and 1966 transitions. [2021-11-12 23:22:17,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:17,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 1966 transitions. [2021-11-12 23:22:17,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:22:17,116 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:17,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:17,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-11-12 23:22:17,116 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:22:17,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:17,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1402965661, now seen corresponding path program 1 times [2021-11-12 23:22:17,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:22:17,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456401756] [2021-11-12 23:22:17,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:17,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:22:17,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:22:17,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:17,307 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:22:17,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456401756] [2021-11-12 23:22:17,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456401756] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:22:17,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:22:17,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:22:17,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741115720] [2021-11-12 23:22:17,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:22:17,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:22:17,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:22:17,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:22:17,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:22:17,309 INFO L87 Difference]: Start difference. First operand 1452 states and 1966 transitions. Second operand has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:21,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:22:21,976 INFO L93 Difference]: Finished difference Result 3170 states and 4281 transitions. [2021-11-12 23:22:21,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 23:22:21,976 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:22:21,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:22:21,979 INFO L225 Difference]: With dead ends: 3170 [2021-11-12 23:22:21,979 INFO L226 Difference]: Without dead ends: 3041 [2021-11-12 23:22:21,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-11-12 23:22:21,980 INFO L933 BasicCegarLoop]: 1039 mSDtfsCounter, 7661 mSDsluCounter, 3968 mSDsCounter, 0 mSdLazyCounter, 4610 mSolverCounterSat, 811 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2236.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7661 SdHoareTripleChecker+Valid, 4992 SdHoareTripleChecker+Invalid, 5421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.98ms SdHoareTripleChecker+Time, 811 IncrementalHoareTripleChecker+Valid, 4610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2713.85ms IncrementalHoareTripleChecker+Time [2021-11-12 23:22:21,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7661 Valid, 4992 Invalid, 5421 Unknown, 0 Unchecked, 23.98ms Time], IncrementalHoareTripleChecker [811 Valid, 4610 Invalid, 0 Unknown, 0 Unchecked, 2713.85ms Time] [2021-11-12 23:22:21,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3041 states. [2021-11-12 23:22:22,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3041 to 1456. [2021-11-12 23:22:22,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1427 states have (on average 1.3805185704274703) internal successors, (1970), 1455 states have internal predecessors, (1970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:22,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 1970 transitions. [2021-11-12 23:22:22,280 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 1970 transitions. Word has length 112 [2021-11-12 23:22:22,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:22:22,280 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 1970 transitions. [2021-11-12 23:22:22,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:22,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 1970 transitions. [2021-11-12 23:22:22,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:22:22,282 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:22,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:22,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-11-12 23:22:22,283 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:22:22,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:22,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1650636604, now seen corresponding path program 1 times [2021-11-12 23:22:22,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:22:22,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597045418] [2021-11-12 23:22:22,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:22,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:22:22,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:22:22,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:22,397 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:22:22,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597045418] [2021-11-12 23:22:22,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597045418] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:22:22,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:22:22,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:22:22,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194392748] [2021-11-12 23:22:22,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:22:22,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:22:22,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:22:22,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:22:22,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:22:22,399 INFO L87 Difference]: Start difference. First operand 1456 states and 1970 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:24,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:22:24,826 INFO L93 Difference]: Finished difference Result 2473 states and 3330 transitions. [2021-11-12 23:22:24,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:22:24,826 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:22:24,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:22:24,828 INFO L225 Difference]: With dead ends: 2473 [2021-11-12 23:22:24,829 INFO L226 Difference]: Without dead ends: 2353 [2021-11-12 23:22:24,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:22:24,830 INFO L933 BasicCegarLoop]: 820 mSDtfsCounter, 4960 mSDsluCounter, 2648 mSDsCounter, 0 mSdLazyCounter, 3136 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1256.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4960 SdHoareTripleChecker+Valid, 3461 SdHoareTripleChecker+Invalid, 3308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.98ms SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 3136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1544.50ms IncrementalHoareTripleChecker+Time [2021-11-12 23:22:24,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4960 Valid, 3461 Invalid, 3308 Unknown, 0 Unchecked, 12.98ms Time], IncrementalHoareTripleChecker [172 Valid, 3136 Invalid, 0 Unknown, 0 Unchecked, 1544.50ms Time] [2021-11-12 23:22:24,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2353 states. [2021-11-12 23:22:25,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2353 to 1456. [2021-11-12 23:22:25,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1427 states have (on average 1.3791170287316048) internal successors, (1968), 1455 states have internal predecessors, (1968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:25,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 1968 transitions. [2021-11-12 23:22:25,121 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 1968 transitions. Word has length 112 [2021-11-12 23:22:25,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:22:25,121 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 1968 transitions. [2021-11-12 23:22:25,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:25,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 1968 transitions. [2021-11-12 23:22:25,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:22:25,122 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:25,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:25,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-11-12 23:22:25,123 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:22:25,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:25,123 INFO L85 PathProgramCache]: Analyzing trace with hash -793106707, now seen corresponding path program 1 times [2021-11-12 23:22:25,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:22:25,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927021877] [2021-11-12 23:22:25,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:25,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:22:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:22:25,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:25,308 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:22:25,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927021877] [2021-11-12 23:22:25,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927021877] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:22:25,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:22:25,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:22:25,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126762393] [2021-11-12 23:22:25,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:22:25,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:22:25,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:22:25,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:22:25,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:22:25,310 INFO L87 Difference]: Start difference. First operand 1456 states and 1968 transitions. Second operand has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:29,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:22:29,637 INFO L93 Difference]: Finished difference Result 3069 states and 4130 transitions. [2021-11-12 23:22:29,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 23:22:29,638 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:22:29,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:22:29,640 INFO L225 Difference]: With dead ends: 3069 [2021-11-12 23:22:29,640 INFO L226 Difference]: Without dead ends: 2947 [2021-11-12 23:22:29,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-11-12 23:22:29,641 INFO L933 BasicCegarLoop]: 858 mSDtfsCounter, 8089 mSDsluCounter, 3023 mSDsCounter, 0 mSdLazyCounter, 3671 mSolverCounterSat, 1072 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1972.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8089 SdHoareTripleChecker+Valid, 3869 SdHoareTripleChecker+Invalid, 4743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.24ms SdHoareTripleChecker+Time, 1072 IncrementalHoareTripleChecker+Valid, 3671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2423.97ms IncrementalHoareTripleChecker+Time [2021-11-12 23:22:29,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8089 Valid, 3869 Invalid, 4743 Unknown, 0 Unchecked, 21.24ms Time], IncrementalHoareTripleChecker [1072 Valid, 3671 Invalid, 0 Unknown, 0 Unchecked, 2423.97ms Time] [2021-11-12 23:22:29,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2947 states. [2021-11-12 23:22:29,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2947 to 1464. [2021-11-12 23:22:29,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1435 states have (on average 1.3770034843205574) internal successors, (1976), 1463 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:29,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 1976 transitions. [2021-11-12 23:22:29,943 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 1976 transitions. Word has length 112 [2021-11-12 23:22:29,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:22:29,943 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 1976 transitions. [2021-11-12 23:22:29,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:29,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 1976 transitions. [2021-11-12 23:22:29,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:22:29,945 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:29,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:29,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-11-12 23:22:29,945 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:22:29,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:29,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1161208882, now seen corresponding path program 1 times [2021-11-12 23:22:29,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:22:29,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821410033] [2021-11-12 23:22:29,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:29,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:22:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:22:30,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:30,051 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:22:30,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821410033] [2021-11-12 23:22:30,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821410033] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:22:30,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:22:30,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:22:30,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876223457] [2021-11-12 23:22:30,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:22:30,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:22:30,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:22:30,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:22:30,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:22:30,053 INFO L87 Difference]: Start difference. First operand 1464 states and 1976 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:32,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:22:32,504 INFO L93 Difference]: Finished difference Result 2475 states and 3327 transitions. [2021-11-12 23:22:32,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:22:32,505 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:22:32,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:22:32,506 INFO L225 Difference]: With dead ends: 2475 [2021-11-12 23:22:32,507 INFO L226 Difference]: Without dead ends: 2353 [2021-11-12 23:22:32,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:22:32,508 INFO L933 BasicCegarLoop]: 812 mSDtfsCounter, 4988 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 3104 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1228.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4988 SdHoareTripleChecker+Valid, 3426 SdHoareTripleChecker+Invalid, 3276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.64ms SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 3104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1514.35ms IncrementalHoareTripleChecker+Time [2021-11-12 23:22:32,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4988 Valid, 3426 Invalid, 3276 Unknown, 0 Unchecked, 13.64ms Time], IncrementalHoareTripleChecker [172 Valid, 3104 Invalid, 0 Unknown, 0 Unchecked, 1514.35ms Time] [2021-11-12 23:22:32,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2353 states. [2021-11-12 23:22:32,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2353 to 1464. [2021-11-12 23:22:32,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1435 states have (on average 1.3756097560975609) internal successors, (1974), 1463 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:32,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 1974 transitions. [2021-11-12 23:22:32,809 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 1974 transitions. Word has length 112 [2021-11-12 23:22:32,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:22:32,810 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 1974 transitions. [2021-11-12 23:22:32,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:32,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 1974 transitions. [2021-11-12 23:22:32,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:22:32,811 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:32,811 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:32,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-11-12 23:22:32,811 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:22:32,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:32,812 INFO L85 PathProgramCache]: Analyzing trace with hash -752363654, now seen corresponding path program 1 times [2021-11-12 23:22:32,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:22:32,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207086225] [2021-11-12 23:22:32,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:32,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:22:32,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:22:32,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:32,914 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:22:32,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207086225] [2021-11-12 23:22:32,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207086225] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:22:32,915 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:22:32,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:22:32,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784544100] [2021-11-12 23:22:32,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:22:32,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:22:32,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:22:32,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:22:32,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:22:32,916 INFO L87 Difference]: Start difference. First operand 1464 states and 1974 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:35,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:22:35,433 INFO L93 Difference]: Finished difference Result 2561 states and 3450 transitions. [2021-11-12 23:22:35,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:22:35,433 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:22:35,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:22:35,435 INFO L225 Difference]: With dead ends: 2561 [2021-11-12 23:22:35,435 INFO L226 Difference]: Without dead ends: 2413 [2021-11-12 23:22:35,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:22:35,436 INFO L933 BasicCegarLoop]: 983 mSDtfsCounter, 4598 mSDsluCounter, 3097 mSDsCounter, 0 mSdLazyCounter, 3571 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1271.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4598 SdHoareTripleChecker+Valid, 4071 SdHoareTripleChecker+Invalid, 3655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.99ms SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1578.23ms IncrementalHoareTripleChecker+Time [2021-11-12 23:22:35,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4598 Valid, 4071 Invalid, 3655 Unknown, 0 Unchecked, 14.99ms Time], IncrementalHoareTripleChecker [84 Valid, 3571 Invalid, 0 Unknown, 0 Unchecked, 1578.23ms Time] [2021-11-12 23:22:35,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2413 states. [2021-11-12 23:22:35,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2413 to 1464. [2021-11-12 23:22:35,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1435 states have (on average 1.3742160278745645) internal successors, (1972), 1463 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:35,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 1972 transitions. [2021-11-12 23:22:35,753 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 1972 transitions. Word has length 112 [2021-11-12 23:22:35,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:22:35,753 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 1972 transitions. [2021-11-12 23:22:35,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:35,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 1972 transitions. [2021-11-12 23:22:35,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:22:35,754 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:35,754 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:35,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-11-12 23:22:35,755 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:22:35,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:35,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1290310657, now seen corresponding path program 1 times [2021-11-12 23:22:35,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:22:35,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352449958] [2021-11-12 23:22:35,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:35,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:22:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:22:35,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:35,865 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:22:35,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352449958] [2021-11-12 23:22:35,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352449958] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:22:35,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:22:35,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:22:35,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218947782] [2021-11-12 23:22:35,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:22:35,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:22:35,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:22:35,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:22:35,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:22:35,868 INFO L87 Difference]: Start difference. First operand 1464 states and 1972 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:38,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:22:38,542 INFO L93 Difference]: Finished difference Result 2469 states and 3318 transitions. [2021-11-12 23:22:38,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:22:38,542 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:22:38,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:22:38,544 INFO L225 Difference]: With dead ends: 2469 [2021-11-12 23:22:38,544 INFO L226 Difference]: Without dead ends: 2353 [2021-11-12 23:22:38,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:22:38,546 INFO L933 BasicCegarLoop]: 855 mSDtfsCounter, 4802 mSDsluCounter, 2756 mSDsCounter, 0 mSdLazyCounter, 3272 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1337.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4802 SdHoareTripleChecker+Valid, 3604 SdHoareTripleChecker+Invalid, 3439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.94ms SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 3272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1645.21ms IncrementalHoareTripleChecker+Time [2021-11-12 23:22:38,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4802 Valid, 3604 Invalid, 3439 Unknown, 0 Unchecked, 15.94ms Time], IncrementalHoareTripleChecker [167 Valid, 3272 Invalid, 0 Unknown, 0 Unchecked, 1645.21ms Time] [2021-11-12 23:22:38,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2353 states. [2021-11-12 23:22:38,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2353 to 1464. [2021-11-12 23:22:38,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1435 states have (on average 1.372822299651568) internal successors, (1970), 1463 states have internal predecessors, (1970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:38,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 1970 transitions. [2021-11-12 23:22:38,856 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 1970 transitions. Word has length 112 [2021-11-12 23:22:38,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:22:38,856 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 1970 transitions. [2021-11-12 23:22:38,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:38,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 1970 transitions. [2021-11-12 23:22:38,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:22:38,858 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:38,858 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:38,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-11-12 23:22:38,859 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:22:38,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:38,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1351588119, now seen corresponding path program 1 times [2021-11-12 23:22:38,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:22:38,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331246970] [2021-11-12 23:22:38,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:38,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:22:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:22:39,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:39,054 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:22:39,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331246970] [2021-11-12 23:22:39,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331246970] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:22:39,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:22:39,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:22:39,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238590772] [2021-11-12 23:22:39,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:22:39,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:22:39,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:22:39,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:22:39,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:22:39,055 INFO L87 Difference]: Start difference. First operand 1464 states and 1970 transitions. Second operand has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:43,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:22:43,935 INFO L93 Difference]: Finished difference Result 3067 states and 4122 transitions. [2021-11-12 23:22:43,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 23:22:43,936 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:22:43,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:22:43,938 INFO L225 Difference]: With dead ends: 3067 [2021-11-12 23:22:43,938 INFO L226 Difference]: Without dead ends: 2947 [2021-11-12 23:22:43,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-11-12 23:22:43,939 INFO L933 BasicCegarLoop]: 871 mSDtfsCounter, 7929 mSDsluCounter, 3893 mSDsCounter, 0 mSdLazyCounter, 4519 mSolverCounterSat, 1059 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2300.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7929 SdHoareTripleChecker+Valid, 4749 SdHoareTripleChecker+Invalid, 5578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.57ms SdHoareTripleChecker+Time, 1059 IncrementalHoareTripleChecker+Valid, 4519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2791.89ms IncrementalHoareTripleChecker+Time [2021-11-12 23:22:43,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7929 Valid, 4749 Invalid, 5578 Unknown, 0 Unchecked, 24.57ms Time], IncrementalHoareTripleChecker [1059 Valid, 4519 Invalid, 0 Unknown, 0 Unchecked, 2791.89ms Time] [2021-11-12 23:22:43,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2947 states. [2021-11-12 23:22:44,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2947 to 1472. [2021-11-12 23:22:44,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1443 states have (on average 1.3707553707553708) internal successors, (1978), 1471 states have internal predecessors, (1978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:44,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 1978 transitions. [2021-11-12 23:22:44,273 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 1978 transitions. Word has length 112 [2021-11-12 23:22:44,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:22:44,273 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 1978 transitions. [2021-11-12 23:22:44,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:44,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 1978 transitions. [2021-11-12 23:22:44,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:22:44,274 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:44,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:44,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-11-12 23:22:44,275 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:22:44,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:44,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1690130227, now seen corresponding path program 1 times [2021-11-12 23:22:44,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:22:44,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396395091] [2021-11-12 23:22:44,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:44,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:22:44,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:22:44,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:44,401 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:22:44,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396395091] [2021-11-12 23:22:44,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396395091] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:22:44,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:22:44,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:22:44,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312420069] [2021-11-12 23:22:44,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:22:44,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:22:44,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:22:44,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:22:44,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:22:44,404 INFO L87 Difference]: Start difference. First operand 1472 states and 1978 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:46,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:22:46,946 INFO L93 Difference]: Finished difference Result 2473 states and 3318 transitions. [2021-11-12 23:22:46,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:22:46,947 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:22:46,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:22:46,949 INFO L225 Difference]: With dead ends: 2473 [2021-11-12 23:22:46,949 INFO L226 Difference]: Without dead ends: 2353 [2021-11-12 23:22:46,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:22:46,950 INFO L933 BasicCegarLoop]: 831 mSDtfsCounter, 4918 mSDsluCounter, 2681 mSDsCounter, 0 mSdLazyCounter, 3126 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1244.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4918 SdHoareTripleChecker+Valid, 3505 SdHoareTripleChecker+Invalid, 3296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.90ms SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 3126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1538.97ms IncrementalHoareTripleChecker+Time [2021-11-12 23:22:46,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4918 Valid, 3505 Invalid, 3296 Unknown, 0 Unchecked, 14.90ms Time], IncrementalHoareTripleChecker [170 Valid, 3126 Invalid, 0 Unknown, 0 Unchecked, 1538.97ms Time] [2021-11-12 23:22:46,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2353 states. [2021-11-12 23:22:47,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2353 to 1472. [2021-11-12 23:22:47,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1443 states have (on average 1.3693693693693694) internal successors, (1976), 1471 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:47,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 1976 transitions. [2021-11-12 23:22:47,297 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 1976 transitions. Word has length 112 [2021-11-12 23:22:47,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:22:47,297 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 1976 transitions. [2021-11-12 23:22:47,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:47,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 1976 transitions. [2021-11-12 23:22:47,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:22:47,299 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:47,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:47,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-11-12 23:22:47,299 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:22:47,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:47,299 INFO L85 PathProgramCache]: Analyzing trace with hash -972979987, now seen corresponding path program 1 times [2021-11-12 23:22:47,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:22:47,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141235628] [2021-11-12 23:22:47,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:47,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:22:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:22:47,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:47,402 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:22:47,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141235628] [2021-11-12 23:22:47,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141235628] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:22:47,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:22:47,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:22:47,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571395774] [2021-11-12 23:22:47,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:22:47,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:22:47,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:22:47,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:22:47,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:22:47,405 INFO L87 Difference]: Start difference. First operand 1472 states and 1976 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:49,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:22:49,967 INFO L93 Difference]: Finished difference Result 2569 states and 3451 transitions. [2021-11-12 23:22:49,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:22:49,967 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:22:49,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:22:49,969 INFO L225 Difference]: With dead ends: 2569 [2021-11-12 23:22:49,969 INFO L226 Difference]: Without dead ends: 2421 [2021-11-12 23:22:49,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:22:49,971 INFO L933 BasicCegarLoop]: 983 mSDtfsCounter, 3062 mSDsluCounter, 3117 mSDsCounter, 0 mSdLazyCounter, 3555 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1262.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3062 SdHoareTripleChecker+Valid, 4091 SdHoareTripleChecker+Invalid, 3611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.70ms SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 3555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1569.12ms IncrementalHoareTripleChecker+Time [2021-11-12 23:22:49,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3062 Valid, 4091 Invalid, 3611 Unknown, 0 Unchecked, 13.70ms Time], IncrementalHoareTripleChecker [56 Valid, 3555 Invalid, 0 Unknown, 0 Unchecked, 1569.12ms Time] [2021-11-12 23:22:49,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2421 states. [2021-11-12 23:22:50,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2421 to 1472. [2021-11-12 23:22:50,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1443 states have (on average 1.367983367983368) internal successors, (1974), 1471 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:50,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 1974 transitions. [2021-11-12 23:22:50,302 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 1974 transitions. Word has length 112 [2021-11-12 23:22:50,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:22:50,302 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 1974 transitions. [2021-11-12 23:22:50,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:50,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 1974 transitions. [2021-11-12 23:22:50,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:22:50,303 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:50,303 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:50,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-11-12 23:22:50,304 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:22:50,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:50,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1329319844, now seen corresponding path program 1 times [2021-11-12 23:22:50,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:22:50,304 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198087590] [2021-11-12 23:22:50,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:50,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:22:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:22:50,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:50,411 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:22:50,411 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198087590] [2021-11-12 23:22:50,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198087590] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:22:50,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:22:50,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:22:50,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129914346] [2021-11-12 23:22:50,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:22:50,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:22:50,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:22:50,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:22:50,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:22:50,413 INFO L87 Difference]: Start difference. First operand 1472 states and 1974 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:53,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:22:53,239 INFO L93 Difference]: Finished difference Result 2715 states and 3640 transitions. [2021-11-12 23:22:53,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:22:53,240 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:22:53,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:22:53,245 INFO L225 Difference]: With dead ends: 2715 [2021-11-12 23:22:53,245 INFO L226 Difference]: Without dead ends: 2481 [2021-11-12 23:22:53,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:22:53,247 INFO L933 BasicCegarLoop]: 1132 mSDtfsCounter, 4357 mSDsluCounter, 3424 mSDsCounter, 0 mSdLazyCounter, 3815 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1428.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4357 SdHoareTripleChecker+Valid, 4544 SdHoareTripleChecker+Invalid, 3862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.72ms SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 3815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1756.34ms IncrementalHoareTripleChecker+Time [2021-11-12 23:22:53,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4357 Valid, 4544 Invalid, 3862 Unknown, 0 Unchecked, 15.72ms Time], IncrementalHoareTripleChecker [47 Valid, 3815 Invalid, 0 Unknown, 0 Unchecked, 1756.34ms Time] [2021-11-12 23:22:53,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2481 states. [2021-11-12 23:22:53,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2481 to 1472. [2021-11-12 23:22:53,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1443 states have (on average 1.3665973665973665) internal successors, (1972), 1471 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:53,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 1972 transitions. [2021-11-12 23:22:53,624 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 1972 transitions. Word has length 112 [2021-11-12 23:22:53,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:22:53,624 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 1972 transitions. [2021-11-12 23:22:53,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:53,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 1972 transitions. [2021-11-12 23:22:53,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:22:53,626 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:53,626 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:53,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-11-12 23:22:53,626 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:22:53,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:53,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1858638162, now seen corresponding path program 1 times [2021-11-12 23:22:53,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:22:53,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450598045] [2021-11-12 23:22:53,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:53,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:22:53,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:22:53,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:53,726 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:22:53,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450598045] [2021-11-12 23:22:53,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450598045] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:22:53,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:22:53,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:22:53,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925669076] [2021-11-12 23:22:53,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:22:53,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:22:53,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:22:53,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:22:53,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:22:53,728 INFO L87 Difference]: Start difference. First operand 1472 states and 1972 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:56,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:22:56,499 INFO L93 Difference]: Finished difference Result 2581 states and 3461 transitions. [2021-11-12 23:22:56,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:22:56,499 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:22:56,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:22:56,502 INFO L225 Difference]: With dead ends: 2581 [2021-11-12 23:22:56,502 INFO L226 Difference]: Without dead ends: 2421 [2021-11-12 23:22:56,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:22:56,503 INFO L933 BasicCegarLoop]: 1188 mSDtfsCounter, 4258 mSDsluCounter, 4041 mSDsCounter, 0 mSdLazyCounter, 3968 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1440.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4258 SdHoareTripleChecker+Valid, 5218 SdHoareTripleChecker+Invalid, 4034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.81ms SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1773.29ms IncrementalHoareTripleChecker+Time [2021-11-12 23:22:56,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4258 Valid, 5218 Invalid, 4034 Unknown, 0 Unchecked, 14.81ms Time], IncrementalHoareTripleChecker [66 Valid, 3968 Invalid, 0 Unknown, 0 Unchecked, 1773.29ms Time] [2021-11-12 23:22:56,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2421 states. [2021-11-12 23:22:56,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2421 to 1472. [2021-11-12 23:22:56,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1443 states have (on average 1.365211365211365) internal successors, (1970), 1471 states have internal predecessors, (1970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:56,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 1970 transitions. [2021-11-12 23:22:56,876 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 1970 transitions. Word has length 112 [2021-11-12 23:22:56,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:22:56,876 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 1970 transitions. [2021-11-12 23:22:56,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:56,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 1970 transitions. [2021-11-12 23:22:56,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:22:56,878 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:56,878 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:56,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-11-12 23:22:56,878 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:22:56,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:56,879 INFO L85 PathProgramCache]: Analyzing trace with hash 2027483906, now seen corresponding path program 1 times [2021-11-12 23:22:56,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:22:56,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055341726] [2021-11-12 23:22:56,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:56,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:22:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:22:56,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:56,989 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:22:56,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055341726] [2021-11-12 23:22:56,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055341726] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:22:56,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:22:56,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:22:56,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918996349] [2021-11-12 23:22:56,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:22:56,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:22:56,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:22:56,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:22:56,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:22:56,991 INFO L87 Difference]: Start difference. First operand 1472 states and 1970 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:59,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:22:59,680 INFO L93 Difference]: Finished difference Result 2479 states and 3317 transitions. [2021-11-12 23:22:59,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:22:59,680 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:22:59,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:22:59,682 INFO L225 Difference]: With dead ends: 2479 [2021-11-12 23:22:59,683 INFO L226 Difference]: Without dead ends: 2353 [2021-11-12 23:22:59,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:22:59,684 INFO L933 BasicCegarLoop]: 874 mSDtfsCounter, 4762 mSDsluCounter, 2805 mSDsCounter, 0 mSdLazyCounter, 3234 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1293.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4762 SdHoareTripleChecker+Valid, 3672 SdHoareTripleChecker+Invalid, 3400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.99ms SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 3234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1614.87ms IncrementalHoareTripleChecker+Time [2021-11-12 23:22:59,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4762 Valid, 3672 Invalid, 3400 Unknown, 0 Unchecked, 14.99ms Time], IncrementalHoareTripleChecker [166 Valid, 3234 Invalid, 0 Unknown, 0 Unchecked, 1614.87ms Time] [2021-11-12 23:22:59,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2353 states. [2021-11-12 23:23:00,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2353 to 1472. [2021-11-12 23:23:00,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1443 states have (on average 1.363825363825364) internal successors, (1968), 1471 states have internal predecessors, (1968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:00,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 1968 transitions. [2021-11-12 23:23:00,035 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 1968 transitions. Word has length 112 [2021-11-12 23:23:00,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:23:00,035 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 1968 transitions. [2021-11-12 23:23:00,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:00,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 1968 transitions. [2021-11-12 23:23:00,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:23:00,037 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:23:00,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:23:00,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-11-12 23:23:00,037 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:23:00,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:23:00,037 INFO L85 PathProgramCache]: Analyzing trace with hash 2012055413, now seen corresponding path program 1 times [2021-11-12 23:23:00,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:23:00,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377431020] [2021-11-12 23:23:00,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:23:00,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:23:00,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:23:00,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:23:00,148 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:23:00,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377431020] [2021-11-12 23:23:00,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377431020] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:23:00,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:23:00,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:23:00,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184520491] [2021-11-12 23:23:00,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:23:00,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:23:00,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:23:00,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:23:00,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:23:00,150 INFO L87 Difference]: Start difference. First operand 1472 states and 1968 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:03,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:23:03,241 INFO L93 Difference]: Finished difference Result 2479 states and 3315 transitions. [2021-11-12 23:23:03,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:23:03,241 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:23:03,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:23:03,244 INFO L225 Difference]: With dead ends: 2479 [2021-11-12 23:23:03,244 INFO L226 Difference]: Without dead ends: 2353 [2021-11-12 23:23:03,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:23:03,245 INFO L933 BasicCegarLoop]: 874 mSDtfsCounter, 4759 mSDsluCounter, 2805 mSDsCounter, 0 mSdLazyCounter, 3230 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1488.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4759 SdHoareTripleChecker+Valid, 3672 SdHoareTripleChecker+Invalid, 3396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.48ms SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 3230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1837.19ms IncrementalHoareTripleChecker+Time [2021-11-12 23:23:03,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4759 Valid, 3672 Invalid, 3396 Unknown, 0 Unchecked, 17.48ms Time], IncrementalHoareTripleChecker [166 Valid, 3230 Invalid, 0 Unknown, 0 Unchecked, 1837.19ms Time] [2021-11-12 23:23:03,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2353 states. [2021-11-12 23:23:03,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2353 to 1472. [2021-11-12 23:23:03,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1443 states have (on average 1.3624393624393625) internal successors, (1966), 1471 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:03,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 1966 transitions. [2021-11-12 23:23:03,608 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 1966 transitions. Word has length 112 [2021-11-12 23:23:03,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:23:03,608 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 1966 transitions. [2021-11-12 23:23:03,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:03,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 1966 transitions. [2021-11-12 23:23:03,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:23:03,611 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:23:03,611 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:23:03,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-11-12 23:23:03,611 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:23:03,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:23:03,612 INFO L85 PathProgramCache]: Analyzing trace with hash 38130447, now seen corresponding path program 1 times [2021-11-12 23:23:03,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:23:03,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567230410] [2021-11-12 23:23:03,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:23:03,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:23:03,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:23:03,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:23:03,804 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:23:03,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567230410] [2021-11-12 23:23:03,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567230410] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:23:03,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:23:03,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:23:03,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738366025] [2021-11-12 23:23:03,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:23:03,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:23:03,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:23:03,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:23:03,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:23:03,806 INFO L87 Difference]: Start difference. First operand 1472 states and 1966 transitions. Second operand has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:08,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:23:08,639 INFO L93 Difference]: Finished difference Result 3263 states and 4372 transitions. [2021-11-12 23:23:08,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 23:23:08,639 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:23:08,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:23:08,642 INFO L225 Difference]: With dead ends: 3263 [2021-11-12 23:23:08,642 INFO L226 Difference]: Without dead ends: 3103 [2021-11-12 23:23:08,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-11-12 23:23:08,643 INFO L933 BasicCegarLoop]: 1088 mSDtfsCounter, 7509 mSDsluCounter, 3671 mSDsCounter, 0 mSdLazyCounter, 4260 mSolverCounterSat, 796 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2135.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7509 SdHoareTripleChecker+Valid, 4747 SdHoareTripleChecker+Invalid, 5056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.84ms SdHoareTripleChecker+Time, 796 IncrementalHoareTripleChecker+Valid, 4260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2593.25ms IncrementalHoareTripleChecker+Time [2021-11-12 23:23:08,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7509 Valid, 4747 Invalid, 5056 Unknown, 0 Unchecked, 21.84ms Time], IncrementalHoareTripleChecker [796 Valid, 4260 Invalid, 0 Unknown, 0 Unchecked, 2593.25ms Time] [2021-11-12 23:23:08,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3103 states. [2021-11-12 23:23:08,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3103 to 1480. [2021-11-12 23:23:08,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1480 states, 1451 states have (on average 1.3604410751206064) internal successors, (1974), 1479 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:08,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1480 states to 1480 states and 1974 transitions. [2021-11-12 23:23:08,998 INFO L78 Accepts]: Start accepts. Automaton has 1480 states and 1974 transitions. Word has length 112 [2021-11-12 23:23:08,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:23:08,998 INFO L470 AbstractCegarLoop]: Abstraction has 1480 states and 1974 transitions. [2021-11-12 23:23:08,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:08,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1480 states and 1974 transitions. [2021-11-12 23:23:09,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:23:09,001 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:23:09,001 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:23:09,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-11-12 23:23:09,001 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:23:09,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:23:09,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1914809708, now seen corresponding path program 1 times [2021-11-12 23:23:09,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:23:09,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144955624] [2021-11-12 23:23:09,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:23:09,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:23:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:23:09,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:23:09,171 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:23:09,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144955624] [2021-11-12 23:23:09,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144955624] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:23:09,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:23:09,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:23:09,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711319971] [2021-11-12 23:23:09,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:23:09,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:23:09,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:23:09,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:23:09,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:23:09,172 INFO L87 Difference]: Start difference. First operand 1480 states and 1974 transitions. Second operand has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:13,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:23:13,847 INFO L93 Difference]: Finished difference Result 3087 states and 4130 transitions. [2021-11-12 23:23:13,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 23:23:13,847 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:23:13,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:23:13,850 INFO L225 Difference]: With dead ends: 3087 [2021-11-12 23:23:13,850 INFO L226 Difference]: Without dead ends: 2961 [2021-11-12 23:23:13,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-11-12 23:23:13,851 INFO L933 BasicCegarLoop]: 913 mSDtfsCounter, 7834 mSDsluCounter, 3157 mSDsCounter, 0 mSdLazyCounter, 3758 mSolverCounterSat, 1031 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2010.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7834 SdHoareTripleChecker+Valid, 4058 SdHoareTripleChecker+Invalid, 4789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.93ms SdHoareTripleChecker+Time, 1031 IncrementalHoareTripleChecker+Valid, 3758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2466.41ms IncrementalHoareTripleChecker+Time [2021-11-12 23:23:13,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7834 Valid, 4058 Invalid, 4789 Unknown, 0 Unchecked, 19.93ms Time], IncrementalHoareTripleChecker [1031 Valid, 3758 Invalid, 0 Unknown, 0 Unchecked, 2466.41ms Time] [2021-11-12 23:23:13,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2021-11-12 23:23:14,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 1488. [2021-11-12 23:23:14,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1459 states have (on average 1.3584647018505827) internal successors, (1982), 1487 states have internal predecessors, (1982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:14,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 1982 transitions. [2021-11-12 23:23:14,214 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 1982 transitions. Word has length 112 [2021-11-12 23:23:14,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:23:14,215 INFO L470 AbstractCegarLoop]: Abstraction has 1488 states and 1982 transitions. [2021-11-12 23:23:14,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:14,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 1982 transitions. [2021-11-12 23:23:14,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-12 23:23:14,216 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:23:14,216 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:23:14,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-11-12 23:23:14,217 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:23:14,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:23:14,217 INFO L85 PathProgramCache]: Analyzing trace with hash 529413222, now seen corresponding path program 1 times [2021-11-12 23:23:14,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:23:14,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427000154] [2021-11-12 23:23:14,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:23:14,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:23:14,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:23:14,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:23:14,330 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:23:14,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427000154] [2021-11-12 23:23:14,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427000154] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:23:14,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:23:14,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:23:14,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804122121] [2021-11-12 23:23:14,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:23:14,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:23:14,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:23:14,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:23:14,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:23:14,332 INFO L87 Difference]: Start difference. First operand 1488 states and 1982 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:17,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:23:17,029 INFO L93 Difference]: Finished difference Result 2481 states and 3312 transitions. [2021-11-12 23:23:17,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:23:17,030 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-11-12 23:23:17,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:23:17,032 INFO L225 Difference]: With dead ends: 2481 [2021-11-12 23:23:17,032 INFO L226 Difference]: Without dead ends: 2361 [2021-11-12 23:23:17,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:23:17,034 INFO L933 BasicCegarLoop]: 865 mSDtfsCounter, 4774 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 3201 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1293.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4774 SdHoareTripleChecker+Valid, 3645 SdHoareTripleChecker+Invalid, 3367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.11ms SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 3201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1591.37ms IncrementalHoareTripleChecker+Time [2021-11-12 23:23:17,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4774 Valid, 3645 Invalid, 3367 Unknown, 0 Unchecked, 13.11ms Time], IncrementalHoareTripleChecker [166 Valid, 3201 Invalid, 0 Unknown, 0 Unchecked, 1591.37ms Time] [2021-11-12 23:23:17,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2361 states. [2021-11-12 23:23:17,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2361 to 1488. [2021-11-12 23:23:17,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1459 states have (on average 1.35709389993146) internal successors, (1980), 1487 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:17,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 1980 transitions. [2021-11-12 23:23:17,409 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 1980 transitions. Word has length 112 [2021-11-12 23:23:17,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:23:17,410 INFO L470 AbstractCegarLoop]: Abstraction has 1488 states and 1980 transitions. [2021-11-12 23:23:17,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:17,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 1980 transitions. [2021-11-12 23:23:17,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-12 23:23:17,412 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:23:17,412 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:23:17,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-11-12 23:23:17,412 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:23:17,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:23:17,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1879261968, now seen corresponding path program 1 times [2021-11-12 23:23:17,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:23:17,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006585406] [2021-11-12 23:23:17,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:23:17,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:23:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:23:17,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:23:17,508 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:23:17,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006585406] [2021-11-12 23:23:17,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006585406] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:23:17,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:23:17,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:23:17,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249542108] [2021-11-12 23:23:17,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:23:17,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:23:17,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:23:17,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:23:17,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:23:17,510 INFO L87 Difference]: Start difference. First operand 1488 states and 1980 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:20,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:23:20,284 INFO L93 Difference]: Finished difference Result 2558 states and 3414 transitions. [2021-11-12 23:23:20,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:23:20,284 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-11-12 23:23:20,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:23:20,287 INFO L225 Difference]: With dead ends: 2558 [2021-11-12 23:23:20,287 INFO L226 Difference]: Without dead ends: 2429 [2021-11-12 23:23:20,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:23:20,288 INFO L933 BasicCegarLoop]: 1035 mSDtfsCounter, 2960 mSDsluCounter, 3273 mSDsCounter, 0 mSdLazyCounter, 3661 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1364.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2960 SdHoareTripleChecker+Valid, 4299 SdHoareTripleChecker+Invalid, 3717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.97ms SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 3661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1684.52ms IncrementalHoareTripleChecker+Time [2021-11-12 23:23:20,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2960 Valid, 4299 Invalid, 3717 Unknown, 0 Unchecked, 12.97ms Time], IncrementalHoareTripleChecker [56 Valid, 3661 Invalid, 0 Unknown, 0 Unchecked, 1684.52ms Time] [2021-11-12 23:23:20,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2429 states. [2021-11-12 23:23:20,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2429 to 1484. [2021-11-12 23:23:20,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1484 states, 1455 states have (on average 1.3573883161512028) internal successors, (1975), 1483 states have internal predecessors, (1975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:20,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 1975 transitions. [2021-11-12 23:23:20,680 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 1975 transitions. Word has length 113 [2021-11-12 23:23:20,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:23:20,681 INFO L470 AbstractCegarLoop]: Abstraction has 1484 states and 1975 transitions. [2021-11-12 23:23:20,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:20,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 1975 transitions. [2021-11-12 23:23:20,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-12 23:23:20,682 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:23:20,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:23:20,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-11-12 23:23:20,682 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:23:20,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:23:20,683 INFO L85 PathProgramCache]: Analyzing trace with hash -650697781, now seen corresponding path program 1 times [2021-11-12 23:23:20,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:23:20,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491366559] [2021-11-12 23:23:20,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:23:20,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:23:20,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:23:20,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:23:20,777 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:23:20,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491366559] [2021-11-12 23:23:20,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491366559] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:23:20,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:23:20,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:23:20,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754858471] [2021-11-12 23:23:20,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:23:20,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:23:20,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:23:20,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:23:20,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:23:20,778 INFO L87 Difference]: Start difference. First operand 1484 states and 1975 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:23,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:23:23,498 INFO L93 Difference]: Finished difference Result 2469 states and 3294 transitions. [2021-11-12 23:23:23,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:23:23,498 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-11-12 23:23:23,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:23:23,500 INFO L225 Difference]: With dead ends: 2469 [2021-11-12 23:23:23,500 INFO L226 Difference]: Without dead ends: 2357 [2021-11-12 23:23:23,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:23:23,501 INFO L933 BasicCegarLoop]: 911 mSDtfsCounter, 3114 mSDsluCounter, 2880 mSDsCounter, 0 mSdLazyCounter, 3362 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1297.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3114 SdHoareTripleChecker+Valid, 3782 SdHoareTripleChecker+Invalid, 3470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.61ms SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 3362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1603.55ms IncrementalHoareTripleChecker+Time [2021-11-12 23:23:23,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3114 Valid, 3782 Invalid, 3470 Unknown, 0 Unchecked, 12.61ms Time], IncrementalHoareTripleChecker [108 Valid, 3362 Invalid, 0 Unknown, 0 Unchecked, 1603.55ms Time] [2021-11-12 23:23:23,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2357 states. [2021-11-12 23:23:23,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2357 to 1480. [2021-11-12 23:23:23,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1480 states, 1451 states have (on average 1.3576843556168159) internal successors, (1970), 1479 states have internal predecessors, (1970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:23,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1480 states to 1480 states and 1970 transitions. [2021-11-12 23:23:23,875 INFO L78 Accepts]: Start accepts. Automaton has 1480 states and 1970 transitions. Word has length 113 [2021-11-12 23:23:23,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:23:23,875 INFO L470 AbstractCegarLoop]: Abstraction has 1480 states and 1970 transitions. [2021-11-12 23:23:23,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:23,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1480 states and 1970 transitions. [2021-11-12 23:23:23,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-12 23:23:23,877 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:23:23,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:23:23,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-11-12 23:23:23,877 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:23:23,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:23:23,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1100476011, now seen corresponding path program 1 times [2021-11-12 23:23:23,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:23:23,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129675046] [2021-11-12 23:23:23,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:23:23,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:23:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:23:24,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:23:24,154 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:23:24,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129675046] [2021-11-12 23:23:24,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129675046] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:23:24,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:23:24,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-12 23:23:24,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623191259] [2021-11-12 23:23:24,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:23:24,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 23:23:24,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:23:24,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 23:23:24,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:23:24,156 INFO L87 Difference]: Start difference. First operand 1480 states and 1970 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:26,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:23:26,148 INFO L93 Difference]: Finished difference Result 2176 states and 2738 transitions. [2021-11-12 23:23:26,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-12 23:23:26,148 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-11-12 23:23:26,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:23:26,150 INFO L225 Difference]: With dead ends: 2176 [2021-11-12 23:23:26,150 INFO L226 Difference]: Without dead ends: 1686 [2021-11-12 23:23:26,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-11-12 23:23:26,151 INFO L933 BasicCegarLoop]: 1408 mSDtfsCounter, 4641 mSDsluCounter, 2549 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 609.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4641 SdHoareTripleChecker+Valid, 3909 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.98ms SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 739.47ms IncrementalHoareTripleChecker+Time [2021-11-12 23:23:26,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4641 Valid, 3909 Invalid, 1061 Unknown, 0 Unchecked, 15.98ms Time], IncrementalHoareTripleChecker [132 Valid, 929 Invalid, 0 Unknown, 0 Unchecked, 739.47ms Time] [2021-11-12 23:23:26,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2021-11-12 23:23:26,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 1094. [2021-11-12 23:23:26,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1072 states have (on average 1.353544776119403) internal successors, (1451), 1093 states have internal predecessors, (1451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:26,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1451 transitions. [2021-11-12 23:23:26,470 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1451 transitions. Word has length 113 [2021-11-12 23:23:26,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:23:26,470 INFO L470 AbstractCegarLoop]: Abstraction has 1094 states and 1451 transitions. [2021-11-12 23:23:26,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:26,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1451 transitions. [2021-11-12 23:23:26,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-12 23:23:26,472 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:23:26,473 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:23:26,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-11-12 23:23:26,473 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:23:26,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:23:26,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1950833807, now seen corresponding path program 1 times [2021-11-12 23:23:26,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:23:26,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824875953] [2021-11-12 23:23:26,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:23:26,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:23:26,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:23:26,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:23:26,590 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:23:26,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824875953] [2021-11-12 23:23:26,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824875953] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:23:26,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:23:26,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:23:26,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403380402] [2021-11-12 23:23:26,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:23:26,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:23:26,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:23:26,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:23:26,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:23:26,592 INFO L87 Difference]: Start difference. First operand 1094 states and 1451 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:28,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:23:28,744 INFO L93 Difference]: Finished difference Result 1922 states and 2558 transitions. [2021-11-12 23:23:28,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:23:28,751 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-11-12 23:23:28,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:23:28,753 INFO L225 Difference]: With dead ends: 1922 [2021-11-12 23:23:28,753 INFO L226 Difference]: Without dead ends: 1800 [2021-11-12 23:23:28,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:23:28,754 INFO L933 BasicCegarLoop]: 607 mSDtfsCounter, 2924 mSDsluCounter, 1851 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 842.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2924 SdHoareTripleChecker+Valid, 2449 SdHoareTripleChecker+Invalid, 2185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.13ms SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1040.12ms IncrementalHoareTripleChecker+Time [2021-11-12 23:23:28,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2924 Valid, 2449 Invalid, 2185 Unknown, 0 Unchecked, 10.13ms Time], IncrementalHoareTripleChecker [88 Valid, 2097 Invalid, 0 Unknown, 0 Unchecked, 1040.12ms Time] [2021-11-12 23:23:28,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2021-11-12 23:23:29,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1086. [2021-11-12 23:23:29,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 1064 states have (on average 1.3543233082706767) internal successors, (1441), 1085 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:29,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1441 transitions. [2021-11-12 23:23:29,097 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1441 transitions. Word has length 113 [2021-11-12 23:23:29,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:23:29,098 INFO L470 AbstractCegarLoop]: Abstraction has 1086 states and 1441 transitions. [2021-11-12 23:23:29,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:29,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1441 transitions. [2021-11-12 23:23:29,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-12 23:23:29,099 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:23:29,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:23:29,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-11-12 23:23:29,100 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:23:29,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:23:29,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1260578693, now seen corresponding path program 1 times [2021-11-12 23:23:29,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:23:29,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141908393] [2021-11-12 23:23:29,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:23:29,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:23:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:23:29,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:23:29,506 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:23:29,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141908393] [2021-11-12 23:23:29,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141908393] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:23:29,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:23:29,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-12 23:23:29,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620652575] [2021-11-12 23:23:29,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:23:29,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 23:23:29,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:23:29,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 23:23:29,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:23:29,507 INFO L87 Difference]: Start difference. First operand 1086 states and 1441 transitions. Second operand has 12 states, 12 states have (on average 9.416666666666666) internal successors, (113), 11 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:31,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:23:31,794 INFO L93 Difference]: Finished difference Result 2176 states and 2911 transitions. [2021-11-12 23:23:31,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:23:31,795 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.416666666666666) internal successors, (113), 11 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-11-12 23:23:31,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:23:31,797 INFO L225 Difference]: With dead ends: 2176 [2021-11-12 23:23:31,797 INFO L226 Difference]: Without dead ends: 2048 [2021-11-12 23:23:31,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-11-12 23:23:31,802 INFO L933 BasicCegarLoop]: 1011 mSDtfsCounter, 4662 mSDsluCounter, 4658 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 541.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4662 SdHoareTripleChecker+Valid, 5599 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.44ms SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 641.17ms IncrementalHoareTripleChecker+Time [2021-11-12 23:23:31,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4662 Valid, 5599 Invalid, 937 Unknown, 0 Unchecked, 12.44ms Time], IncrementalHoareTripleChecker [65 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 641.17ms Time] [2021-11-12 23:23:31,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2021-11-12 23:23:32,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 1062. [2021-11-12 23:23:32,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 1040 states have (on average 1.3509615384615385) internal successors, (1405), 1061 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:32,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1405 transitions. [2021-11-12 23:23:32,166 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1405 transitions. Word has length 113 [2021-11-12 23:23:32,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:23:32,167 INFO L470 AbstractCegarLoop]: Abstraction has 1062 states and 1405 transitions. [2021-11-12 23:23:32,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.416666666666666) internal successors, (113), 11 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:32,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1405 transitions. [2021-11-12 23:23:32,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-12 23:23:32,168 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:23:32,168 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:23:32,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-11-12 23:23:32,168 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:23:32,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:23:32,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1222904865, now seen corresponding path program 1 times [2021-11-12 23:23:32,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:23:32,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212044531] [2021-11-12 23:23:32,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:23:32,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:23:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:23:32,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:23:32,291 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:23:32,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212044531] [2021-11-12 23:23:32,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212044531] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:23:32,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:23:32,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:23:32,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715323605] [2021-11-12 23:23:32,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:23:32,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:23:32,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:23:32,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:23:32,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:23:32,293 INFO L87 Difference]: Start difference. First operand 1062 states and 1405 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:34,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:23:34,478 INFO L93 Difference]: Finished difference Result 1896 states and 2519 transitions. [2021-11-12 23:23:34,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:23:34,479 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-11-12 23:23:34,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:23:34,481 INFO L225 Difference]: With dead ends: 1896 [2021-11-12 23:23:34,481 INFO L226 Difference]: Without dead ends: 1776 [2021-11-12 23:23:34,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:23:34,482 INFO L933 BasicCegarLoop]: 603 mSDtfsCounter, 2772 mSDsluCounter, 1855 mSDsCounter, 0 mSdLazyCounter, 2110 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 891.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2772 SdHoareTripleChecker+Valid, 2450 SdHoareTripleChecker+Invalid, 2194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.16ms SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1094.64ms IncrementalHoareTripleChecker+Time [2021-11-12 23:23:34,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2772 Valid, 2450 Invalid, 2194 Unknown, 0 Unchecked, 9.16ms Time], IncrementalHoareTripleChecker [84 Valid, 2110 Invalid, 0 Unknown, 0 Unchecked, 1094.64ms Time] [2021-11-12 23:23:34,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2021-11-12 23:23:34,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1054. [2021-11-12 23:23:34,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 1032 states have (on average 1.3517441860465116) internal successors, (1395), 1053 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:34,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1395 transitions. [2021-11-12 23:23:34,821 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1395 transitions. Word has length 113 [2021-11-12 23:23:34,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:23:34,821 INFO L470 AbstractCegarLoop]: Abstraction has 1054 states and 1395 transitions. [2021-11-12 23:23:34,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:34,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1395 transitions. [2021-11-12 23:23:34,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-12 23:23:34,822 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:23:34,823 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:23:34,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-11-12 23:23:34,823 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:23:34,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:23:34,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1537778661, now seen corresponding path program 1 times [2021-11-12 23:23:34,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:23:34,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184134716] [2021-11-12 23:23:34,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:23:34,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:23:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:23:34,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:23:34,933 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:23:34,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184134716] [2021-11-12 23:23:34,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184134716] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:23:34,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:23:34,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:23:34,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593949619] [2021-11-12 23:23:34,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:23:34,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:23:34,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:23:34,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:23:34,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:23:34,936 INFO L87 Difference]: Start difference. First operand 1054 states and 1395 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:37,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:23:37,079 INFO L93 Difference]: Finished difference Result 1902 states and 2524 transitions. [2021-11-12 23:23:37,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:23:37,079 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-11-12 23:23:37,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:23:37,081 INFO L225 Difference]: With dead ends: 1902 [2021-11-12 23:23:37,081 INFO L226 Difference]: Without dead ends: 1776 [2021-11-12 23:23:37,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:23:37,082 INFO L933 BasicCegarLoop]: 612 mSDtfsCounter, 2724 mSDsluCounter, 1881 mSDsCounter, 0 mSdLazyCounter, 2130 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 850.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2724 SdHoareTripleChecker+Valid, 2484 SdHoareTripleChecker+Invalid, 2214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.57ms SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1052.13ms IncrementalHoareTripleChecker+Time [2021-11-12 23:23:37,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2724 Valid, 2484 Invalid, 2214 Unknown, 0 Unchecked, 9.57ms Time], IncrementalHoareTripleChecker [84 Valid, 2130 Invalid, 0 Unknown, 0 Unchecked, 1052.13ms Time] [2021-11-12 23:23:37,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2021-11-12 23:23:37,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1046. [2021-11-12 23:23:37,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 1024 states have (on average 1.3525390625) internal successors, (1385), 1045 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:37,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1385 transitions. [2021-11-12 23:23:37,428 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1385 transitions. Word has length 113 [2021-11-12 23:23:37,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:23:37,428 INFO L470 AbstractCegarLoop]: Abstraction has 1046 states and 1385 transitions. [2021-11-12 23:23:37,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:37,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1385 transitions. [2021-11-12 23:23:37,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-12 23:23:37,429 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:23:37,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:23:37,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-11-12 23:23:37,430 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:23:37,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:23:37,430 INFO L85 PathProgramCache]: Analyzing trace with hash 217968531, now seen corresponding path program 1 times [2021-11-12 23:23:37,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:23:37,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393552042] [2021-11-12 23:23:37,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:23:37,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:23:37,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:23:37,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:23:37,537 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:23:37,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393552042] [2021-11-12 23:23:37,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393552042] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:23:37,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:23:37,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:23:37,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669769589] [2021-11-12 23:23:37,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:23:37,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:23:37,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:23:37,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:23:37,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:23:37,539 INFO L87 Difference]: Start difference. First operand 1046 states and 1385 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:39,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:23:39,748 INFO L93 Difference]: Finished difference Result 1960 states and 2610 transitions. [2021-11-12 23:23:39,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:23:39,749 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-11-12 23:23:39,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:23:39,750 INFO L225 Difference]: With dead ends: 1960 [2021-11-12 23:23:39,750 INFO L226 Difference]: Without dead ends: 1800 [2021-11-12 23:23:39,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:23:39,751 INFO L933 BasicCegarLoop]: 696 mSDtfsCounter, 2565 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 2294 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 902.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2565 SdHoareTripleChecker+Valid, 2787 SdHoareTripleChecker+Invalid, 2341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.05ms SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1110.14ms IncrementalHoareTripleChecker+Time [2021-11-12 23:23:39,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2565 Valid, 2787 Invalid, 2341 Unknown, 0 Unchecked, 10.05ms Time], IncrementalHoareTripleChecker [47 Valid, 2294 Invalid, 0 Unknown, 0 Unchecked, 1110.14ms Time] [2021-11-12 23:23:39,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2021-11-12 23:23:40,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1038. [2021-11-12 23:23:40,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1038 states, 1016 states have (on average 1.3533464566929134) internal successors, (1375), 1037 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:40,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1038 states to 1038 states and 1375 transitions. [2021-11-12 23:23:40,076 INFO L78 Accepts]: Start accepts. Automaton has 1038 states and 1375 transitions. Word has length 113 [2021-11-12 23:23:40,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:23:40,077 INFO L470 AbstractCegarLoop]: Abstraction has 1038 states and 1375 transitions. [2021-11-12 23:23:40,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:40,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1038 states and 1375 transitions. [2021-11-12 23:23:40,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:23:40,078 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:23:40,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:23:40,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-11-12 23:23:40,078 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:23:40,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:23:40,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1716325617, now seen corresponding path program 1 times [2021-11-12 23:23:40,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:23:40,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095543934] [2021-11-12 23:23:40,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:23:40,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:23:40,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:23:40,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:23:40,189 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:23:40,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095543934] [2021-11-12 23:23:40,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095543934] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:23:40,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:23:40,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:23:40,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397385302] [2021-11-12 23:23:40,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:23:40,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:23:40,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:23:40,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:23:40,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:23:40,191 INFO L87 Difference]: Start difference. First operand 1038 states and 1375 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:42,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:23:42,325 INFO L93 Difference]: Finished difference Result 1794 states and 2357 transitions. [2021-11-12 23:23:42,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:23:42,325 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:23:42,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:23:42,327 INFO L225 Difference]: With dead ends: 1794 [2021-11-12 23:23:42,327 INFO L226 Difference]: Without dead ends: 1690 [2021-11-12 23:23:42,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:23:42,328 INFO L933 BasicCegarLoop]: 536 mSDtfsCounter, 2739 mSDsluCounter, 1648 mSDsCounter, 0 mSdLazyCounter, 1970 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 831.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2739 SdHoareTripleChecker+Valid, 2177 SdHoareTripleChecker+Invalid, 2126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.02ms SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 1970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1027.23ms IncrementalHoareTripleChecker+Time [2021-11-12 23:23:42,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2739 Valid, 2177 Invalid, 2126 Unknown, 0 Unchecked, 9.02ms Time], IncrementalHoareTripleChecker [156 Valid, 1970 Invalid, 0 Unknown, 0 Unchecked, 1027.23ms Time] [2021-11-12 23:23:42,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2021-11-12 23:23:42,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1038. [2021-11-12 23:23:42,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1038 states, 1016 states have (on average 1.3513779527559056) internal successors, (1373), 1037 states have internal predecessors, (1373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:42,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1038 states to 1038 states and 1373 transitions. [2021-11-12 23:23:42,678 INFO L78 Accepts]: Start accepts. Automaton has 1038 states and 1373 transitions. Word has length 114 [2021-11-12 23:23:42,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:23:42,679 INFO L470 AbstractCegarLoop]: Abstraction has 1038 states and 1373 transitions. [2021-11-12 23:23:42,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:42,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1038 states and 1373 transitions. [2021-11-12 23:23:42,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:23:42,680 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:23:42,680 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:23:42,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-11-12 23:23:42,680 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:23:42,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:23:42,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1958502362, now seen corresponding path program 1 times [2021-11-12 23:23:42,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:23:42,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462334511] [2021-11-12 23:23:42,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:23:42,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:23:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:23:42,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:23:42,845 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:23:42,846 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462334511] [2021-11-12 23:23:42,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462334511] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:23:42,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:23:42,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:23:42,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265794745] [2021-11-12 23:23:42,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:23:42,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:23:42,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:23:42,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:23:42,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:23:42,847 INFO L87 Difference]: Start difference. First operand 1038 states and 1373 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:46,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:23:46,777 INFO L93 Difference]: Finished difference Result 2324 states and 3069 transitions. [2021-11-12 23:23:46,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 23:23:46,778 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:23:46,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:23:46,780 INFO L225 Difference]: With dead ends: 2324 [2021-11-12 23:23:46,780 INFO L226 Difference]: Without dead ends: 2216 [2021-11-12 23:23:46,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-11-12 23:23:46,781 INFO L933 BasicCegarLoop]: 537 mSDtfsCounter, 4874 mSDsluCounter, 1758 mSDsCounter, 0 mSdLazyCounter, 2160 mSolverCounterSat, 743 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1300.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4874 SdHoareTripleChecker+Valid, 2285 SdHoareTripleChecker+Invalid, 2903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.74ms SdHoareTripleChecker+Time, 743 IncrementalHoareTripleChecker+Valid, 2160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1600.27ms IncrementalHoareTripleChecker+Time [2021-11-12 23:23:46,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4874 Valid, 2285 Invalid, 2903 Unknown, 0 Unchecked, 13.74ms Time], IncrementalHoareTripleChecker [743 Valid, 2160 Invalid, 0 Unknown, 0 Unchecked, 1600.27ms Time] [2021-11-12 23:23:46,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2216 states. [2021-11-12 23:23:47,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2216 to 1046. [2021-11-12 23:23:47,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 1024 states have (on average 1.3486328125) internal successors, (1381), 1045 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:47,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1381 transitions. [2021-11-12 23:23:47,149 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1381 transitions. Word has length 114 [2021-11-12 23:23:47,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:23:47,150 INFO L470 AbstractCegarLoop]: Abstraction has 1046 states and 1381 transitions. [2021-11-12 23:23:47,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:47,150 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1381 transitions. [2021-11-12 23:23:47,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:23:47,151 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:23:47,151 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:23:47,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-11-12 23:23:47,151 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:23:47,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:23:47,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1309808286, now seen corresponding path program 1 times [2021-11-12 23:23:47,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:23:47,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290323632] [2021-11-12 23:23:47,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:23:47,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:23:47,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:23:47,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:23:47,260 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:23:47,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290323632] [2021-11-12 23:23:47,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290323632] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:23:47,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:23:47,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:23:47,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940192979] [2021-11-12 23:23:47,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:23:47,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:23:47,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:23:47,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:23:47,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:23:47,262 INFO L87 Difference]: Start difference. First operand 1046 states and 1381 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:49,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:23:49,409 INFO L93 Difference]: Finished difference Result 1798 states and 2357 transitions. [2021-11-12 23:23:49,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:23:49,410 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:23:49,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:23:49,411 INFO L225 Difference]: With dead ends: 1798 [2021-11-12 23:23:49,411 INFO L226 Difference]: Without dead ends: 1690 [2021-11-12 23:23:49,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:23:49,412 INFO L933 BasicCegarLoop]: 514 mSDtfsCounter, 2845 mSDsluCounter, 1583 mSDsCounter, 0 mSdLazyCounter, 1826 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 800.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2845 SdHoareTripleChecker+Valid, 2090 SdHoareTripleChecker+Invalid, 1985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.85ms SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 987.65ms IncrementalHoareTripleChecker+Time [2021-11-12 23:23:49,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2845 Valid, 2090 Invalid, 1985 Unknown, 0 Unchecked, 8.85ms Time], IncrementalHoareTripleChecker [159 Valid, 1826 Invalid, 0 Unknown, 0 Unchecked, 987.65ms Time] [2021-11-12 23:23:49,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2021-11-12 23:23:49,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1046. [2021-11-12 23:23:49,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 1024 states have (on average 1.3466796875) internal successors, (1379), 1045 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:49,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1379 transitions. [2021-11-12 23:23:49,775 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1379 transitions. Word has length 114 [2021-11-12 23:23:49,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:23:49,775 INFO L470 AbstractCegarLoop]: Abstraction has 1046 states and 1379 transitions. [2021-11-12 23:23:49,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:49,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1379 transitions. [2021-11-12 23:23:49,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:23:49,776 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:23:49,776 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:23:49,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-11-12 23:23:49,777 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:23:49,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:23:49,777 INFO L85 PathProgramCache]: Analyzing trace with hash 44709825, now seen corresponding path program 1 times [2021-11-12 23:23:49,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:23:49,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591304855] [2021-11-12 23:23:49,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:23:49,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:23:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:23:49,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:23:49,942 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:23:49,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591304855] [2021-11-12 23:23:49,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591304855] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:23:49,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:23:49,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:23:49,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532047545] [2021-11-12 23:23:49,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:23:49,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:23:49,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:23:49,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:23:49,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:23:49,947 INFO L87 Difference]: Start difference. First operand 1046 states and 1379 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:54,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:23:54,181 INFO L93 Difference]: Finished difference Result 2210 states and 2907 transitions. [2021-11-12 23:23:54,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 23:23:54,181 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:23:54,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:23:54,183 INFO L225 Difference]: With dead ends: 2210 [2021-11-12 23:23:54,183 INFO L226 Difference]: Without dead ends: 2205 [2021-11-12 23:23:54,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-11-12 23:23:54,184 INFO L933 BasicCegarLoop]: 538 mSDtfsCounter, 4796 mSDsluCounter, 2106 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 746 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1437.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4796 SdHoareTripleChecker+Valid, 2630 SdHoareTripleChecker+Invalid, 3273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.47ms SdHoareTripleChecker+Time, 746 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1751.26ms IncrementalHoareTripleChecker+Time [2021-11-12 23:23:54,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4796 Valid, 2630 Invalid, 3273 Unknown, 0 Unchecked, 15.47ms Time], IncrementalHoareTripleChecker [746 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 1751.26ms Time] [2021-11-12 23:23:54,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2205 states. [2021-11-12 23:23:54,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2205 to 1054. [2021-11-12 23:23:54,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 1032 states have (on average 1.3439922480620154) internal successors, (1387), 1053 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:54,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1387 transitions. [2021-11-12 23:23:54,536 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1387 transitions. Word has length 114 [2021-11-12 23:23:54,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:23:54,536 INFO L470 AbstractCegarLoop]: Abstraction has 1054 states and 1387 transitions. [2021-11-12 23:23:54,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:54,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1387 transitions. [2021-11-12 23:23:54,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:23:54,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:23:54,537 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:23:54,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-11-12 23:23:54,537 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:23:54,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:23:54,538 INFO L85 PathProgramCache]: Analyzing trace with hash -759029279, now seen corresponding path program 1 times [2021-11-12 23:23:54,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:23:54,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10785654] [2021-11-12 23:23:54,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:23:54,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:23:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:23:54,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:23:54,645 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:23:54,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10785654] [2021-11-12 23:23:54,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10785654] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:23:54,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:23:54,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:23:54,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245848727] [2021-11-12 23:23:54,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:23:54,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:23:54,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:23:54,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:23:54,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:23:54,647 INFO L87 Difference]: Start difference. First operand 1054 states and 1387 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:56,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:23:56,838 INFO L93 Difference]: Finished difference Result 1695 states and 2213 transitions. [2021-11-12 23:23:56,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:23:56,839 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:23:56,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:23:56,840 INFO L225 Difference]: With dead ends: 1695 [2021-11-12 23:23:56,840 INFO L226 Difference]: Without dead ends: 1690 [2021-11-12 23:23:56,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:23:56,841 INFO L933 BasicCegarLoop]: 519 mSDtfsCounter, 2843 mSDsluCounter, 1589 mSDsCounter, 0 mSdLazyCounter, 1816 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 802.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2843 SdHoareTripleChecker+Valid, 2099 SdHoareTripleChecker+Invalid, 1975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.06ms SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 990.94ms IncrementalHoareTripleChecker+Time [2021-11-12 23:23:56,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2843 Valid, 2099 Invalid, 1975 Unknown, 0 Unchecked, 9.06ms Time], IncrementalHoareTripleChecker [159 Valid, 1816 Invalid, 0 Unknown, 0 Unchecked, 990.94ms Time] [2021-11-12 23:23:56,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2021-11-12 23:23:57,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1054. [2021-11-12 23:23:57,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 1032 states have (on average 1.3420542635658914) internal successors, (1385), 1053 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:57,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1385 transitions. [2021-11-12 23:23:57,207 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1385 transitions. Word has length 114 [2021-11-12 23:23:57,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:23:57,208 INFO L470 AbstractCegarLoop]: Abstraction has 1054 states and 1385 transitions. [2021-11-12 23:23:57,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:57,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1385 transitions. [2021-11-12 23:23:57,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:23:57,209 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:23:57,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:23:57,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-11-12 23:23:57,209 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:23:57,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:23:57,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1153167823, now seen corresponding path program 1 times [2021-11-12 23:23:57,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:23:57,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679654803] [2021-11-12 23:23:57,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:23:57,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:23:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:23:57,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:23:57,307 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:23:57,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679654803] [2021-11-12 23:23:57,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679654803] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:23:57,307 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:23:57,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:23:57,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445136916] [2021-11-12 23:23:57,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:23:57,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:23:57,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:23:57,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:23:57,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:23:57,308 INFO L87 Difference]: Start difference. First operand 1054 states and 1385 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:59,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:23:59,508 INFO L93 Difference]: Finished difference Result 1809 states and 2375 transitions. [2021-11-12 23:23:59,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:23:59,508 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:23:59,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:23:59,510 INFO L225 Difference]: With dead ends: 1809 [2021-11-12 23:23:59,510 INFO L226 Difference]: Without dead ends: 1792 [2021-11-12 23:23:59,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:23:59,511 INFO L933 BasicCegarLoop]: 646 mSDtfsCounter, 2613 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 2163 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 814.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2613 SdHoareTripleChecker+Valid, 2610 SdHoareTripleChecker+Invalid, 2244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.79ms SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1017.12ms IncrementalHoareTripleChecker+Time [2021-11-12 23:23:59,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2613 Valid, 2610 Invalid, 2244 Unknown, 0 Unchecked, 8.79ms Time], IncrementalHoareTripleChecker [81 Valid, 2163 Invalid, 0 Unknown, 0 Unchecked, 1017.12ms Time] [2021-11-12 23:23:59,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1792 states. [2021-11-12 23:23:59,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1792 to 1054. [2021-11-12 23:23:59,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 1032 states have (on average 1.3401162790697674) internal successors, (1383), 1053 states have internal predecessors, (1383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:59,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1383 transitions. [2021-11-12 23:23:59,895 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1383 transitions. Word has length 114 [2021-11-12 23:23:59,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:23:59,895 INFO L470 AbstractCegarLoop]: Abstraction has 1054 states and 1383 transitions. [2021-11-12 23:23:59,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:23:59,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1383 transitions. [2021-11-12 23:23:59,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:23:59,896 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:23:59,896 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:23:59,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-11-12 23:23:59,897 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:23:59,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:23:59,897 INFO L85 PathProgramCache]: Analyzing trace with hash -248950219, now seen corresponding path program 1 times [2021-11-12 23:23:59,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:23:59,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390375908] [2021-11-12 23:23:59,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:23:59,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:23:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:00,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:00,014 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:00,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390375908] [2021-11-12 23:24:00,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390375908] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:00,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:00,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:24:00,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786965982] [2021-11-12 23:24:00,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:00,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:24:00,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:00,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:24:00,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:24:00,016 INFO L87 Difference]: Start difference. First operand 1054 states and 1383 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:02,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:02,240 INFO L93 Difference]: Finished difference Result 1798 states and 2349 transitions. [2021-11-12 23:24:02,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:24:02,241 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:24:02,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:02,243 INFO L225 Difference]: With dead ends: 1798 [2021-11-12 23:24:02,243 INFO L226 Difference]: Without dead ends: 1690 [2021-11-12 23:24:02,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:24:02,243 INFO L933 BasicCegarLoop]: 545 mSDtfsCounter, 2703 mSDsluCounter, 1674 mSDsCounter, 0 mSdLazyCounter, 1958 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 815.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2703 SdHoareTripleChecker+Valid, 2212 SdHoareTripleChecker+Invalid, 2112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.10ms SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1008.24ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:02,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2703 Valid, 2212 Invalid, 2112 Unknown, 0 Unchecked, 9.10ms Time], IncrementalHoareTripleChecker [154 Valid, 1958 Invalid, 0 Unknown, 0 Unchecked, 1008.24ms Time] [2021-11-12 23:24:02,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2021-11-12 23:24:02,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1054. [2021-11-12 23:24:02,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 1032 states have (on average 1.3381782945736433) internal successors, (1381), 1053 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:02,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1381 transitions. [2021-11-12 23:24:02,624 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1381 transitions. Word has length 114 [2021-11-12 23:24:02,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:02,625 INFO L470 AbstractCegarLoop]: Abstraction has 1054 states and 1381 transitions. [2021-11-12 23:24:02,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:02,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1381 transitions. [2021-11-12 23:24:02,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:24:02,626 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:02,626 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:02,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-11-12 23:24:02,626 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:24:02,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:02,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1514165854, now seen corresponding path program 1 times [2021-11-12 23:24:02,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:02,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52950256] [2021-11-12 23:24:02,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:02,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:02,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:02,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:02,787 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:02,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52950256] [2021-11-12 23:24:02,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52950256] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:02,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:02,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:24:02,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842745137] [2021-11-12 23:24:02,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:02,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:24:02,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:02,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:24:02,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:24:02,789 INFO L87 Difference]: Start difference. First operand 1054 states and 1381 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:06,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:06,875 INFO L93 Difference]: Finished difference Result 2210 states and 2899 transitions. [2021-11-12 23:24:06,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 23:24:06,875 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:24:06,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:06,877 INFO L225 Difference]: With dead ends: 2210 [2021-11-12 23:24:06,877 INFO L226 Difference]: Without dead ends: 2205 [2021-11-12 23:24:06,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-11-12 23:24:06,878 INFO L933 BasicCegarLoop]: 567 mSDtfsCounter, 4565 mSDsluCounter, 1835 mSDsCounter, 0 mSdLazyCounter, 2257 mSolverCounterSat, 732 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1309.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4565 SdHoareTripleChecker+Valid, 2390 SdHoareTripleChecker+Invalid, 2989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.05ms SdHoareTripleChecker+Time, 732 IncrementalHoareTripleChecker+Valid, 2257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1604.27ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:06,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4565 Valid, 2390 Invalid, 2989 Unknown, 0 Unchecked, 14.05ms Time], IncrementalHoareTripleChecker [732 Valid, 2257 Invalid, 0 Unknown, 0 Unchecked, 1604.27ms Time] [2021-11-12 23:24:06,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2205 states. [2021-11-12 23:24:07,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2205 to 1062. [2021-11-12 23:24:07,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 1040 states have (on average 1.335576923076923) internal successors, (1389), 1061 states have internal predecessors, (1389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:07,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1389 transitions. [2021-11-12 23:24:07,245 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1389 transitions. Word has length 114 [2021-11-12 23:24:07,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:07,245 INFO L470 AbstractCegarLoop]: Abstraction has 1062 states and 1389 transitions. [2021-11-12 23:24:07,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:07,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1389 transitions. [2021-11-12 23:24:07,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:24:07,246 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:07,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:07,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-11-12 23:24:07,247 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:24:07,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:07,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1656096971, now seen corresponding path program 1 times [2021-11-12 23:24:07,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:07,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14986251] [2021-11-12 23:24:07,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:07,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:07,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:07,444 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:07,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14986251] [2021-11-12 23:24:07,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14986251] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:07,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:07,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:24:07,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056297048] [2021-11-12 23:24:07,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:07,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:24:07,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:07,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:24:07,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:24:07,446 INFO L87 Difference]: Start difference. First operand 1062 states and 1389 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:11,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:11,564 INFO L93 Difference]: Finished difference Result 2324 states and 3055 transitions. [2021-11-12 23:24:11,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 23:24:11,565 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:24:11,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:11,566 INFO L225 Difference]: With dead ends: 2324 [2021-11-12 23:24:11,566 INFO L226 Difference]: Without dead ends: 2216 [2021-11-12 23:24:11,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-11-12 23:24:11,567 INFO L933 BasicCegarLoop]: 542 mSDtfsCounter, 4791 mSDsluCounter, 1790 mSDsCounter, 0 mSdLazyCounter, 2141 mSolverCounterSat, 744 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1291.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4791 SdHoareTripleChecker+Valid, 2320 SdHoareTripleChecker+Invalid, 2885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.76ms SdHoareTripleChecker+Time, 744 IncrementalHoareTripleChecker+Valid, 2141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1578.79ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:11,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4791 Valid, 2320 Invalid, 2885 Unknown, 0 Unchecked, 13.76ms Time], IncrementalHoareTripleChecker [744 Valid, 2141 Invalid, 0 Unknown, 0 Unchecked, 1578.79ms Time] [2021-11-12 23:24:11,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2216 states. [2021-11-12 23:24:11,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2216 to 1070. [2021-11-12 23:24:11,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1070 states, 1048 states have (on average 1.3330152671755726) internal successors, (1397), 1069 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:11,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1397 transitions. [2021-11-12 23:24:11,969 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1397 transitions. Word has length 114 [2021-11-12 23:24:11,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:11,969 INFO L470 AbstractCegarLoop]: Abstraction has 1070 states and 1397 transitions. [2021-11-12 23:24:11,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:11,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1397 transitions. [2021-11-12 23:24:11,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:24:11,970 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:11,971 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:11,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-11-12 23:24:11,971 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:24:11,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:11,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1579404938, now seen corresponding path program 1 times [2021-11-12 23:24:11,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:11,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596305310] [2021-11-12 23:24:11,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:11,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:11,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:12,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:12,084 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:12,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596305310] [2021-11-12 23:24:12,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596305310] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:12,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:12,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:24:12,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125227587] [2021-11-12 23:24:12,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:12,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:24:12,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:12,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:24:12,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:24:12,086 INFO L87 Difference]: Start difference. First operand 1070 states and 1397 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:14,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:14,307 INFO L93 Difference]: Finished difference Result 1794 states and 2339 transitions. [2021-11-12 23:24:14,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:24:14,307 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:24:14,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:14,309 INFO L225 Difference]: With dead ends: 1794 [2021-11-12 23:24:14,309 INFO L226 Difference]: Without dead ends: 1690 [2021-11-12 23:24:14,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:24:14,310 INFO L933 BasicCegarLoop]: 518 mSDtfsCounter, 2817 mSDsluCounter, 1596 mSDsCounter, 0 mSdLazyCounter, 1809 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 785.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2817 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.59ms SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 969.88ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:14,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2817 Valid, 2107 Invalid, 1966 Unknown, 0 Unchecked, 8.59ms Time], IncrementalHoareTripleChecker [157 Valid, 1809 Invalid, 0 Unknown, 0 Unchecked, 969.88ms Time] [2021-11-12 23:24:14,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2021-11-12 23:24:14,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1070. [2021-11-12 23:24:14,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1070 states, 1048 states have (on average 1.3311068702290076) internal successors, (1395), 1069 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:14,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1395 transitions. [2021-11-12 23:24:14,694 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1395 transitions. Word has length 114 [2021-11-12 23:24:14,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:14,694 INFO L470 AbstractCegarLoop]: Abstraction has 1070 states and 1395 transitions. [2021-11-12 23:24:14,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:14,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1395 transitions. [2021-11-12 23:24:14,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:24:14,696 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:14,696 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:14,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-11-12 23:24:14,696 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:24:14,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:14,697 INFO L85 PathProgramCache]: Analyzing trace with hash 816296341, now seen corresponding path program 1 times [2021-11-12 23:24:14,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:14,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252572679] [2021-11-12 23:24:14,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:14,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:14,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:14,819 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:14,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252572679] [2021-11-12 23:24:14,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252572679] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:14,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:14,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:24:14,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866401379] [2021-11-12 23:24:14,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:14,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:24:14,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:14,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:24:14,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:24:14,821 INFO L87 Difference]: Start difference. First operand 1070 states and 1395 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:17,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:17,029 INFO L93 Difference]: Finished difference Result 1798 states and 2341 transitions. [2021-11-12 23:24:17,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:24:17,030 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:24:17,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:17,031 INFO L225 Difference]: With dead ends: 1798 [2021-11-12 23:24:17,031 INFO L226 Difference]: Without dead ends: 1690 [2021-11-12 23:24:17,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:24:17,032 INFO L933 BasicCegarLoop]: 519 mSDtfsCounter, 2814 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 1803 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 773.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2814 SdHoareTripleChecker+Valid, 2110 SdHoareTripleChecker+Invalid, 1960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.03ms SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 956.74ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:17,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2814 Valid, 2110 Invalid, 1960 Unknown, 0 Unchecked, 9.03ms Time], IncrementalHoareTripleChecker [157 Valid, 1803 Invalid, 0 Unknown, 0 Unchecked, 956.74ms Time] [2021-11-12 23:24:17,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2021-11-12 23:24:17,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1070. [2021-11-12 23:24:17,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1070 states, 1048 states have (on average 1.3291984732824427) internal successors, (1393), 1069 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:17,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1393 transitions. [2021-11-12 23:24:17,447 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1393 transitions. Word has length 114 [2021-11-12 23:24:17,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:17,447 INFO L470 AbstractCegarLoop]: Abstraction has 1070 states and 1393 transitions. [2021-11-12 23:24:17,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:17,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1393 transitions. [2021-11-12 23:24:17,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:24:17,449 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:17,449 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:17,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-11-12 23:24:17,449 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:24:17,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:17,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1803640257, now seen corresponding path program 1 times [2021-11-12 23:24:17,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:17,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010070775] [2021-11-12 23:24:17,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:17,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:17,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:17,624 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:17,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010070775] [2021-11-12 23:24:17,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010070775] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:17,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:17,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:24:17,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862990070] [2021-11-12 23:24:17,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:17,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:24:17,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:17,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:24:17,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:24:17,626 INFO L87 Difference]: Start difference. First operand 1070 states and 1393 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:22,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:22,166 INFO L93 Difference]: Finished difference Result 2526 states and 3319 transitions. [2021-11-12 23:24:22,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 23:24:22,166 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:24:22,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:22,168 INFO L225 Difference]: With dead ends: 2526 [2021-11-12 23:24:22,168 INFO L226 Difference]: Without dead ends: 2404 [2021-11-12 23:24:22,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-11-12 23:24:22,169 INFO L933 BasicCegarLoop]: 652 mSDtfsCounter, 4580 mSDsluCounter, 2788 mSDsCounter, 0 mSdLazyCounter, 3042 mSolverCounterSat, 549 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1485.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4580 SdHoareTripleChecker+Valid, 3425 SdHoareTripleChecker+Invalid, 3591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.67ms SdHoareTripleChecker+Time, 549 IncrementalHoareTripleChecker+Valid, 3042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1812.83ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:22,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4580 Valid, 3425 Invalid, 3591 Unknown, 0 Unchecked, 15.67ms Time], IncrementalHoareTripleChecker [549 Valid, 3042 Invalid, 0 Unknown, 0 Unchecked, 1812.83ms Time] [2021-11-12 23:24:22,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2404 states. [2021-11-12 23:24:22,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2404 to 1078. [2021-11-12 23:24:22,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 1056 states have (on average 1.3267045454545454) internal successors, (1401), 1077 states have internal predecessors, (1401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:22,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1401 transitions. [2021-11-12 23:24:22,566 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1401 transitions. Word has length 114 [2021-11-12 23:24:22,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:22,566 INFO L470 AbstractCegarLoop]: Abstraction has 1078 states and 1401 transitions. [2021-11-12 23:24:22,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:22,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1401 transitions. [2021-11-12 23:24:22,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:24:22,568 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:22,568 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:22,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-11-12 23:24:22,568 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:24:22,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:22,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1464990417, now seen corresponding path program 1 times [2021-11-12 23:24:22,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:22,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411780884] [2021-11-12 23:24:22,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:22,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:22,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:22,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:22,761 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:22,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411780884] [2021-11-12 23:24:22,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411780884] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:22,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:22,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:24:22,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033149470] [2021-11-12 23:24:22,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:22,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:24:22,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:22,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:24:22,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:24:22,763 INFO L87 Difference]: Start difference. First operand 1078 states and 1401 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:27,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:27,038 INFO L93 Difference]: Finished difference Result 2332 states and 3057 transitions. [2021-11-12 23:24:27,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 23:24:27,038 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:24:27,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:27,040 INFO L225 Difference]: With dead ends: 2332 [2021-11-12 23:24:27,040 INFO L226 Difference]: Without dead ends: 2224 [2021-11-12 23:24:27,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-11-12 23:24:27,041 INFO L933 BasicCegarLoop]: 541 mSDtfsCounter, 4739 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 2125 mSolverCounterSat, 741 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1297.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4739 SdHoareTripleChecker+Valid, 2317 SdHoareTripleChecker+Invalid, 2866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.70ms SdHoareTripleChecker+Time, 741 IncrementalHoareTripleChecker+Valid, 2125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1580.98ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:27,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4739 Valid, 2317 Invalid, 2866 Unknown, 0 Unchecked, 13.70ms Time], IncrementalHoareTripleChecker [741 Valid, 2125 Invalid, 0 Unknown, 0 Unchecked, 1580.98ms Time] [2021-11-12 23:24:27,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2224 states. [2021-11-12 23:24:27,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2224 to 1086. [2021-11-12 23:24:27,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 1064 states have (on average 1.324248120300752) internal successors, (1409), 1085 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:27,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1409 transitions. [2021-11-12 23:24:27,449 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1409 transitions. Word has length 114 [2021-11-12 23:24:27,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:27,450 INFO L470 AbstractCegarLoop]: Abstraction has 1086 states and 1409 transitions. [2021-11-12 23:24:27,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:27,450 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1409 transitions. [2021-11-12 23:24:27,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:24:27,451 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:27,451 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:27,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-11-12 23:24:27,452 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:24:27,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:27,452 INFO L85 PathProgramCache]: Analyzing trace with hash -931195966, now seen corresponding path program 1 times [2021-11-12 23:24:27,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:27,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051341651] [2021-11-12 23:24:27,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:27,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:27,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:27,560 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:27,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051341651] [2021-11-12 23:24:27,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051341651] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:27,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:27,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:24:27,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337273224] [2021-11-12 23:24:27,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:27,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:24:27,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:27,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:24:27,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:24:27,562 INFO L87 Difference]: Start difference. First operand 1086 states and 1409 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:29,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:29,856 INFO L93 Difference]: Finished difference Result 1802 states and 2341 transitions. [2021-11-12 23:24:29,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:24:29,857 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:24:29,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:29,859 INFO L225 Difference]: With dead ends: 1802 [2021-11-12 23:24:29,859 INFO L226 Difference]: Without dead ends: 1698 [2021-11-12 23:24:29,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:24:29,860 INFO L933 BasicCegarLoop]: 517 mSDtfsCounter, 2815 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 1792 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 783.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2815 SdHoareTripleChecker+Valid, 2103 SdHoareTripleChecker+Invalid, 1949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.77ms SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 966.50ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:29,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2815 Valid, 2103 Invalid, 1949 Unknown, 0 Unchecked, 8.77ms Time], IncrementalHoareTripleChecker [157 Valid, 1792 Invalid, 0 Unknown, 0 Unchecked, 966.50ms Time] [2021-11-12 23:24:29,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1698 states. [2021-11-12 23:24:30,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1698 to 1086. [2021-11-12 23:24:30,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 1064 states have (on average 1.3223684210526316) internal successors, (1407), 1085 states have internal predecessors, (1407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:30,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1407 transitions. [2021-11-12 23:24:30,279 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1407 transitions. Word has length 114 [2021-11-12 23:24:30,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:30,279 INFO L470 AbstractCegarLoop]: Abstraction has 1086 states and 1407 transitions. [2021-11-12 23:24:30,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:30,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1407 transitions. [2021-11-12 23:24:30,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:24:30,281 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:30,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:30,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-11-12 23:24:30,281 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:24:30,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:30,281 INFO L85 PathProgramCache]: Analyzing trace with hash -792310262, now seen corresponding path program 1 times [2021-11-12 23:24:30,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:30,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495224629] [2021-11-12 23:24:30,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:30,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:30,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:30,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:30,442 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:30,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495224629] [2021-11-12 23:24:30,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495224629] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:30,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:30,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:24:30,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223173534] [2021-11-12 23:24:30,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:30,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:24:30,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:30,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:24:30,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:24:30,443 INFO L87 Difference]: Start difference. First operand 1086 states and 1407 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:35,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:35,096 INFO L93 Difference]: Finished difference Result 2710 states and 3557 transitions. [2021-11-12 23:24:35,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 23:24:35,097 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:24:35,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:35,099 INFO L225 Difference]: With dead ends: 2710 [2021-11-12 23:24:35,099 INFO L226 Difference]: Without dead ends: 2542 [2021-11-12 23:24:35,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-11-12 23:24:35,101 INFO L933 BasicCegarLoop]: 730 mSDtfsCounter, 5113 mSDsluCounter, 2278 mSDsCounter, 0 mSdLazyCounter, 2525 mSolverCounterSat, 479 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1302.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5113 SdHoareTripleChecker+Valid, 2997 SdHoareTripleChecker+Invalid, 3004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.75ms SdHoareTripleChecker+Time, 479 IncrementalHoareTripleChecker+Valid, 2525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1595.11ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:35,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5113 Valid, 2997 Invalid, 3004 Unknown, 0 Unchecked, 14.75ms Time], IncrementalHoareTripleChecker [479 Valid, 2525 Invalid, 0 Unknown, 0 Unchecked, 1595.11ms Time] [2021-11-12 23:24:35,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2542 states. [2021-11-12 23:24:35,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2542 to 1094. [2021-11-12 23:24:35,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1072 states have (on average 1.319962686567164) internal successors, (1415), 1093 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:35,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1415 transitions. [2021-11-12 23:24:35,568 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1415 transitions. Word has length 114 [2021-11-12 23:24:35,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:35,568 INFO L470 AbstractCegarLoop]: Abstraction has 1094 states and 1415 transitions. [2021-11-12 23:24:35,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:35,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1415 transitions. [2021-11-12 23:24:35,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:24:35,570 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:35,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:35,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-11-12 23:24:35,570 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:24:35,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:35,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1628046504, now seen corresponding path program 1 times [2021-11-12 23:24:35,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:35,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682948032] [2021-11-12 23:24:35,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:35,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:35,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:35,685 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:35,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682948032] [2021-11-12 23:24:35,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682948032] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:35,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:35,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:24:35,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919201842] [2021-11-12 23:24:35,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:35,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:24:35,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:35,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:24:35,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:24:35,687 INFO L87 Difference]: Start difference. First operand 1094 states and 1415 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:38,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:38,134 INFO L93 Difference]: Finished difference Result 1818 states and 2356 transitions. [2021-11-12 23:24:38,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:24:38,134 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:24:38,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:38,136 INFO L225 Difference]: With dead ends: 1818 [2021-11-12 23:24:38,136 INFO L226 Difference]: Without dead ends: 1706 [2021-11-12 23:24:38,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:24:38,137 INFO L933 BasicCegarLoop]: 526 mSDtfsCounter, 2806 mSDsluCounter, 1609 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 805.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2806 SdHoareTripleChecker+Valid, 2126 SdHoareTripleChecker+Invalid, 1946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.52ms SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 994.58ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:38,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2806 Valid, 2126 Invalid, 1946 Unknown, 0 Unchecked, 9.52ms Time], IncrementalHoareTripleChecker [157 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 994.58ms Time] [2021-11-12 23:24:38,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2021-11-12 23:24:38,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1094. [2021-11-12 23:24:38,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1072 states have (on average 1.3180970149253732) internal successors, (1413), 1093 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:38,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1413 transitions. [2021-11-12 23:24:38,554 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1413 transitions. Word has length 114 [2021-11-12 23:24:38,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:38,554 INFO L470 AbstractCegarLoop]: Abstraction has 1094 states and 1413 transitions. [2021-11-12 23:24:38,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:38,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1413 transitions. [2021-11-12 23:24:38,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:24:38,555 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:38,555 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:38,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-11-12 23:24:38,556 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:24:38,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:38,556 INFO L85 PathProgramCache]: Analyzing trace with hash -754723690, now seen corresponding path program 1 times [2021-11-12 23:24:38,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:38,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149296421] [2021-11-12 23:24:38,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:38,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:38,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:38,665 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:38,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149296421] [2021-11-12 23:24:38,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149296421] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:38,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:38,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:24:38,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693941128] [2021-11-12 23:24:38,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:38,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:24:38,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:38,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:24:38,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:24:38,668 INFO L87 Difference]: Start difference. First operand 1094 states and 1413 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:41,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:41,278 INFO L93 Difference]: Finished difference Result 1960 states and 2547 transitions. [2021-11-12 23:24:41,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:24:41,279 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:24:41,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:41,281 INFO L225 Difference]: With dead ends: 1960 [2021-11-12 23:24:41,281 INFO L226 Difference]: Without dead ends: 1832 [2021-11-12 23:24:41,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:24:41,282 INFO L933 BasicCegarLoop]: 629 mSDtfsCounter, 2603 mSDsluCounter, 1963 mSDsCounter, 0 mSdLazyCounter, 2128 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 924.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2603 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 2208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.49ms SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 2128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1135.66ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:41,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2603 Valid, 2583 Invalid, 2208 Unknown, 0 Unchecked, 10.49ms Time], IncrementalHoareTripleChecker [80 Valid, 2128 Invalid, 0 Unknown, 0 Unchecked, 1135.66ms Time] [2021-11-12 23:24:41,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1832 states. [2021-11-12 23:24:41,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1832 to 1094. [2021-11-12 23:24:41,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1072 states have (on average 1.3162313432835822) internal successors, (1411), 1093 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:41,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1411 transitions. [2021-11-12 23:24:41,729 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1411 transitions. Word has length 114 [2021-11-12 23:24:41,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:41,729 INFO L470 AbstractCegarLoop]: Abstraction has 1094 states and 1411 transitions. [2021-11-12 23:24:41,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:41,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1411 transitions. [2021-11-12 23:24:41,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:24:41,730 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:41,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:41,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-11-12 23:24:41,731 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:24:41,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:41,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1263034005, now seen corresponding path program 1 times [2021-11-12 23:24:41,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:41,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351345335] [2021-11-12 23:24:41,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:41,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:41,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:41,838 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:41,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351345335] [2021-11-12 23:24:41,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351345335] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:41,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:41,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:24:41,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915924221] [2021-11-12 23:24:41,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:41,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:24:41,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:41,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:24:41,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:24:41,841 INFO L87 Difference]: Start difference. First operand 1094 states and 1411 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:44,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:44,148 INFO L93 Difference]: Finished difference Result 1818 states and 2352 transitions. [2021-11-12 23:24:44,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:24:44,148 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:24:44,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:44,149 INFO L225 Difference]: With dead ends: 1818 [2021-11-12 23:24:44,150 INFO L226 Difference]: Without dead ends: 1706 [2021-11-12 23:24:44,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:24:44,150 INFO L933 BasicCegarLoop]: 539 mSDtfsCounter, 2762 mSDsluCounter, 1648 mSDsCounter, 0 mSdLazyCounter, 1805 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 760.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2762 SdHoareTripleChecker+Valid, 2178 SdHoareTripleChecker+Invalid, 1960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.77ms SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 1805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 942.68ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:44,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2762 Valid, 2178 Invalid, 1960 Unknown, 0 Unchecked, 8.77ms Time], IncrementalHoareTripleChecker [155 Valid, 1805 Invalid, 0 Unknown, 0 Unchecked, 942.68ms Time] [2021-11-12 23:24:44,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2021-11-12 23:24:44,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1094. [2021-11-12 23:24:44,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1072 states have (on average 1.314365671641791) internal successors, (1409), 1093 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:44,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1409 transitions. [2021-11-12 23:24:44,600 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1409 transitions. Word has length 114 [2021-11-12 23:24:44,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:44,600 INFO L470 AbstractCegarLoop]: Abstraction has 1094 states and 1409 transitions. [2021-11-12 23:24:44,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:44,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1409 transitions. [2021-11-12 23:24:44,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:24:44,602 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:44,603 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:44,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-11-12 23:24:44,603 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:24:44,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:44,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1119736189, now seen corresponding path program 1 times [2021-11-12 23:24:44,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:44,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066419522] [2021-11-12 23:24:44,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:44,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:44,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:44,713 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:44,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066419522] [2021-11-12 23:24:44,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066419522] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:44,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:44,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:24:44,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726846036] [2021-11-12 23:24:44,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:44,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:24:44,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:44,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:24:44,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:24:44,714 INFO L87 Difference]: Start difference. First operand 1094 states and 1409 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:47,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:47,050 INFO L93 Difference]: Finished difference Result 1960 states and 2541 transitions. [2021-11-12 23:24:47,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:24:47,051 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:24:47,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:47,052 INFO L225 Difference]: With dead ends: 1960 [2021-11-12 23:24:47,052 INFO L226 Difference]: Without dead ends: 1832 [2021-11-12 23:24:47,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:24:47,053 INFO L933 BasicCegarLoop]: 630 mSDtfsCounter, 2635 mSDsluCounter, 1921 mSDsCounter, 0 mSdLazyCounter, 2082 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 776.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2635 SdHoareTripleChecker+Valid, 2542 SdHoareTripleChecker+Invalid, 2163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.07ms SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 966.64ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:47,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2635 Valid, 2542 Invalid, 2163 Unknown, 0 Unchecked, 9.07ms Time], IncrementalHoareTripleChecker [81 Valid, 2082 Invalid, 0 Unknown, 0 Unchecked, 966.64ms Time] [2021-11-12 23:24:47,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1832 states. [2021-11-12 23:24:47,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1832 to 1094. [2021-11-12 23:24:47,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1072 states have (on average 1.3125) internal successors, (1407), 1093 states have internal predecessors, (1407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:47,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1407 transitions. [2021-11-12 23:24:47,524 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1407 transitions. Word has length 114 [2021-11-12 23:24:47,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:47,524 INFO L470 AbstractCegarLoop]: Abstraction has 1094 states and 1407 transitions. [2021-11-12 23:24:47,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:47,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1407 transitions. [2021-11-12 23:24:47,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:24:47,526 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:47,526 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:47,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-11-12 23:24:47,527 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:24:47,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:47,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1773855829, now seen corresponding path program 1 times [2021-11-12 23:24:47,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:47,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360357932] [2021-11-12 23:24:47,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:47,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:47,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:47,616 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:47,616 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360357932] [2021-11-12 23:24:47,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360357932] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:47,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:47,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:24:47,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503177314] [2021-11-12 23:24:47,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:47,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:24:47,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:47,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:24:47,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:24:47,617 INFO L87 Difference]: Start difference. First operand 1094 states and 1407 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:49,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:49,986 INFO L93 Difference]: Finished difference Result 1814 states and 2343 transitions. [2021-11-12 23:24:49,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:24:49,986 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:24:49,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:49,987 INFO L225 Difference]: With dead ends: 1814 [2021-11-12 23:24:49,988 INFO L226 Difference]: Without dead ends: 1706 [2021-11-12 23:24:49,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:24:49,988 INFO L933 BasicCegarLoop]: 561 mSDtfsCounter, 2628 mSDsluCounter, 1722 mSDsCounter, 0 mSdLazyCounter, 1948 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 800.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2628 SdHoareTripleChecker+Valid, 2276 SdHoareTripleChecker+Invalid, 2098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.82ms SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 1948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 991.42ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:49,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2628 Valid, 2276 Invalid, 2098 Unknown, 0 Unchecked, 8.82ms Time], IncrementalHoareTripleChecker [150 Valid, 1948 Invalid, 0 Unknown, 0 Unchecked, 991.42ms Time] [2021-11-12 23:24:49,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2021-11-12 23:24:50,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1094. [2021-11-12 23:24:50,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1072 states have (on average 1.310634328358209) internal successors, (1405), 1093 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:50,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1405 transitions. [2021-11-12 23:24:50,420 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1405 transitions. Word has length 114 [2021-11-12 23:24:50,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:50,420 INFO L470 AbstractCegarLoop]: Abstraction has 1094 states and 1405 transitions. [2021-11-12 23:24:50,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:50,421 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1405 transitions. [2021-11-12 23:24:50,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:24:50,421 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:50,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:50,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-11-12 23:24:50,422 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:24:50,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:50,422 INFO L85 PathProgramCache]: Analyzing trace with hash 507897430, now seen corresponding path program 1 times [2021-11-12 23:24:50,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:50,422 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588539524] [2021-11-12 23:24:50,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:50,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:50,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:50,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:50,610 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:50,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588539524] [2021-11-12 23:24:50,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588539524] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:50,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:50,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:24:50,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319003779] [2021-11-12 23:24:50,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:50,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:24:50,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:50,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:24:50,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:24:50,612 INFO L87 Difference]: Start difference. First operand 1094 states and 1405 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:54,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:54,906 INFO L93 Difference]: Finished difference Result 2336 states and 3043 transitions. [2021-11-12 23:24:54,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 23:24:54,906 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:24:54,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:54,908 INFO L225 Difference]: With dead ends: 2336 [2021-11-12 23:24:54,908 INFO L226 Difference]: Without dead ends: 2224 [2021-11-12 23:24:54,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-11-12 23:24:54,909 INFO L933 BasicCegarLoop]: 569 mSDtfsCounter, 4666 mSDsluCounter, 1844 mSDsCounter, 0 mSdLazyCounter, 2137 mSolverCounterSat, 718 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1242.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4666 SdHoareTripleChecker+Valid, 2401 SdHoareTripleChecker+Invalid, 2855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.89ms SdHoareTripleChecker+Time, 718 IncrementalHoareTripleChecker+Valid, 2137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1532.49ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:54,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4666 Valid, 2401 Invalid, 2855 Unknown, 0 Unchecked, 13.89ms Time], IncrementalHoareTripleChecker [718 Valid, 2137 Invalid, 0 Unknown, 0 Unchecked, 1532.49ms Time] [2021-11-12 23:24:54,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2224 states. [2021-11-12 23:24:55,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2224 to 1102. [2021-11-12 23:24:55,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 1080 states have (on average 1.3083333333333333) internal successors, (1413), 1101 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:55,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1413 transitions. [2021-11-12 23:24:55,361 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1413 transitions. Word has length 114 [2021-11-12 23:24:55,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:55,362 INFO L470 AbstractCegarLoop]: Abstraction has 1102 states and 1413 transitions. [2021-11-12 23:24:55,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:55,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1413 transitions. [2021-11-12 23:24:55,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:24:55,363 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:55,363 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:55,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-11-12 23:24:55,363 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:24:55,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:55,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1233359702, now seen corresponding path program 1 times [2021-11-12 23:24:55,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:55,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951990294] [2021-11-12 23:24:55,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:55,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:55,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:55,454 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:55,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951990294] [2021-11-12 23:24:55,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951990294] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:55,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:55,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:24:55,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788841337] [2021-11-12 23:24:55,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:55,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:24:55,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:55,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:24:55,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:24:55,455 INFO L87 Difference]: Start difference. First operand 1102 states and 1413 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:57,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:24:57,807 INFO L93 Difference]: Finished difference Result 1968 states and 2543 transitions. [2021-11-12 23:24:57,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:24:57,807 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:24:57,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:24:57,809 INFO L225 Difference]: With dead ends: 1968 [2021-11-12 23:24:57,809 INFO L226 Difference]: Without dead ends: 1840 [2021-11-12 23:24:57,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:24:57,810 INFO L933 BasicCegarLoop]: 624 mSDtfsCounter, 2745 mSDsluCounter, 1888 mSDsCounter, 0 mSdLazyCounter, 2001 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 756.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2745 SdHoareTripleChecker+Valid, 2503 SdHoareTripleChecker+Invalid, 2083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.91ms SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 941.91ms IncrementalHoareTripleChecker+Time [2021-11-12 23:24:57,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2745 Valid, 2503 Invalid, 2083 Unknown, 0 Unchecked, 8.91ms Time], IncrementalHoareTripleChecker [82 Valid, 2001 Invalid, 0 Unknown, 0 Unchecked, 941.91ms Time] [2021-11-12 23:24:57,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1840 states. [2021-11-12 23:24:58,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1840 to 1102. [2021-11-12 23:24:58,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 1080 states have (on average 1.3064814814814816) internal successors, (1411), 1101 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:58,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1411 transitions. [2021-11-12 23:24:58,274 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1411 transitions. Word has length 114 [2021-11-12 23:24:58,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:24:58,274 INFO L470 AbstractCegarLoop]: Abstraction has 1102 states and 1411 transitions. [2021-11-12 23:24:58,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:24:58,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1411 transitions. [2021-11-12 23:24:58,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:24:58,276 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:24:58,276 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:24:58,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-11-12 23:24:58,277 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:24:58,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:24:58,277 INFO L85 PathProgramCache]: Analyzing trace with hash -678837400, now seen corresponding path program 1 times [2021-11-12 23:24:58,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:24:58,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018425458] [2021-11-12 23:24:58,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:24:58,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:24:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:24:58,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:24:58,372 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:24:58,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018425458] [2021-11-12 23:24:58,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018425458] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:24:58,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:24:58,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:24:58,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093355955] [2021-11-12 23:24:58,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:24:58,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:24:58,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:24:58,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:24:58,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:24:58,373 INFO L87 Difference]: Start difference. First operand 1102 states and 1411 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:00,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:25:00,741 INFO L93 Difference]: Finished difference Result 1818 states and 2342 transitions. [2021-11-12 23:25:00,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:25:00,741 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:25:00,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:25:00,743 INFO L225 Difference]: With dead ends: 1818 [2021-11-12 23:25:00,743 INFO L226 Difference]: Without dead ends: 1706 [2021-11-12 23:25:00,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:25:00,743 INFO L933 BasicCegarLoop]: 561 mSDtfsCounter, 2684 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 1828 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 769.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2684 SdHoareTripleChecker+Valid, 2266 SdHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.03ms SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 1828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 953.73ms IncrementalHoareTripleChecker+Time [2021-11-12 23:25:00,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2684 Valid, 2266 Invalid, 1979 Unknown, 0 Unchecked, 9.03ms Time], IncrementalHoareTripleChecker [151 Valid, 1828 Invalid, 0 Unknown, 0 Unchecked, 953.73ms Time] [2021-11-12 23:25:00,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2021-11-12 23:25:01,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1102. [2021-11-12 23:25:01,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 1080 states have (on average 1.3046296296296296) internal successors, (1409), 1101 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:01,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1409 transitions. [2021-11-12 23:25:01,224 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1409 transitions. Word has length 114 [2021-11-12 23:25:01,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:25:01,224 INFO L470 AbstractCegarLoop]: Abstraction has 1102 states and 1409 transitions. [2021-11-12 23:25:01,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:01,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1409 transitions. [2021-11-12 23:25:01,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:25:01,225 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:25:01,225 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:25:01,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-11-12 23:25:01,226 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:25:01,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:25:01,226 INFO L85 PathProgramCache]: Analyzing trace with hash -168278721, now seen corresponding path program 1 times [2021-11-12 23:25:01,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:25:01,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400289285] [2021-11-12 23:25:01,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:25:01,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:25:01,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:25:01,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:25:01,325 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:25:01,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400289285] [2021-11-12 23:25:01,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400289285] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:25:01,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:25:01,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:25:01,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711726886] [2021-11-12 23:25:01,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:25:01,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:25:01,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:25:01,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:25:01,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:25:01,327 INFO L87 Difference]: Start difference. First operand 1102 states and 1409 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:03,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:25:03,872 INFO L93 Difference]: Finished difference Result 1814 states and 2335 transitions. [2021-11-12 23:25:03,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:25:03,873 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:25:03,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:25:03,875 INFO L225 Difference]: With dead ends: 1814 [2021-11-12 23:25:03,875 INFO L226 Difference]: Without dead ends: 1706 [2021-11-12 23:25:03,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:25:03,876 INFO L933 BasicCegarLoop]: 570 mSDtfsCounter, 2591 mSDsluCounter, 1749 mSDsCounter, 0 mSdLazyCounter, 1951 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 840.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2591 SdHoareTripleChecker+Valid, 2312 SdHoareTripleChecker+Invalid, 2099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.47ms SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 1951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1034.58ms IncrementalHoareTripleChecker+Time [2021-11-12 23:25:03,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2591 Valid, 2312 Invalid, 2099 Unknown, 0 Unchecked, 9.47ms Time], IncrementalHoareTripleChecker [148 Valid, 1951 Invalid, 0 Unknown, 0 Unchecked, 1034.58ms Time] [2021-11-12 23:25:03,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2021-11-12 23:25:04,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1102. [2021-11-12 23:25:04,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 1080 states have (on average 1.3027777777777778) internal successors, (1407), 1101 states have internal predecessors, (1407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:04,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1407 transitions. [2021-11-12 23:25:04,395 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1407 transitions. Word has length 114 [2021-11-12 23:25:04,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:25:04,395 INFO L470 AbstractCegarLoop]: Abstraction has 1102 states and 1407 transitions. [2021-11-12 23:25:04,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:04,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1407 transitions. [2021-11-12 23:25:04,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:25:04,397 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:25:04,397 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:25:04,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-11-12 23:25:04,397 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:25:04,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:25:04,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1433973975, now seen corresponding path program 1 times [2021-11-12 23:25:04,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:25:04,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937702311] [2021-11-12 23:25:04,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:25:04,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:25:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:25:04,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:25:04,583 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:25:04,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937702311] [2021-11-12 23:25:04,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937702311] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:25:04,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:25:04,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:25:04,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317160912] [2021-11-12 23:25:04,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:25:04,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:25:04,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:25:04,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:25:04,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:25:04,584 INFO L87 Difference]: Start difference. First operand 1102 states and 1407 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:09,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:25:09,283 INFO L93 Difference]: Finished difference Result 2336 states and 3035 transitions. [2021-11-12 23:25:09,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 23:25:09,283 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:25:09,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:25:09,285 INFO L225 Difference]: With dead ends: 2336 [2021-11-12 23:25:09,285 INFO L226 Difference]: Without dead ends: 2224 [2021-11-12 23:25:09,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-11-12 23:25:09,286 INFO L933 BasicCegarLoop]: 578 mSDtfsCounter, 4506 mSDsluCounter, 2403 mSDsCounter, 0 mSdLazyCounter, 2638 mSolverCounterSat, 709 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1393.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4506 SdHoareTripleChecker+Valid, 2966 SdHoareTripleChecker+Invalid, 3347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.30ms SdHoareTripleChecker+Time, 709 IncrementalHoareTripleChecker+Valid, 2638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1704.57ms IncrementalHoareTripleChecker+Time [2021-11-12 23:25:09,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4506 Valid, 2966 Invalid, 3347 Unknown, 0 Unchecked, 15.30ms Time], IncrementalHoareTripleChecker [709 Valid, 2638 Invalid, 0 Unknown, 0 Unchecked, 1704.57ms Time] [2021-11-12 23:25:09,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2224 states. [2021-11-12 23:25:09,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2224 to 1110. [2021-11-12 23:25:09,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 1088 states have (on average 1.3005514705882353) internal successors, (1415), 1109 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:09,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1415 transitions. [2021-11-12 23:25:09,765 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1415 transitions. Word has length 114 [2021-11-12 23:25:09,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:25:09,766 INFO L470 AbstractCegarLoop]: Abstraction has 1110 states and 1415 transitions. [2021-11-12 23:25:09,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:09,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1415 transitions. [2021-11-12 23:25:09,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:25:09,767 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:25:09,767 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:25:09,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-11-12 23:25:09,767 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:25:09,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:25:09,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1390479784, now seen corresponding path program 1 times [2021-11-12 23:25:09,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:25:09,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839599478] [2021-11-12 23:25:09,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:25:09,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:25:09,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:25:09,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:25:09,851 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:25:09,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839599478] [2021-11-12 23:25:09,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839599478] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:25:09,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:25:09,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:25:09,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933578445] [2021-11-12 23:25:09,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:25:09,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:25:09,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:25:09,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:25:09,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:25:09,852 INFO L87 Difference]: Start difference. First operand 1110 states and 1415 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:12,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:25:12,271 INFO L93 Difference]: Finished difference Result 1814 states and 2331 transitions. [2021-11-12 23:25:12,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:25:12,272 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:25:12,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:25:12,273 INFO L225 Difference]: With dead ends: 1814 [2021-11-12 23:25:12,273 INFO L226 Difference]: Without dead ends: 1706 [2021-11-12 23:25:12,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:25:12,274 INFO L933 BasicCegarLoop]: 570 mSDtfsCounter, 2590 mSDsluCounter, 1749 mSDsCounter, 0 mSdLazyCounter, 1938 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 797.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2590 SdHoareTripleChecker+Valid, 2312 SdHoareTripleChecker+Invalid, 2086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.17ms SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 1938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 988.35ms IncrementalHoareTripleChecker+Time [2021-11-12 23:25:12,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2590 Valid, 2312 Invalid, 2086 Unknown, 0 Unchecked, 9.17ms Time], IncrementalHoareTripleChecker [148 Valid, 1938 Invalid, 0 Unknown, 0 Unchecked, 988.35ms Time] [2021-11-12 23:25:12,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2021-11-12 23:25:12,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1110. [2021-11-12 23:25:12,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 1088 states have (on average 1.2987132352941178) internal successors, (1413), 1109 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:12,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1413 transitions. [2021-11-12 23:25:12,738 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1413 transitions. Word has length 114 [2021-11-12 23:25:12,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:25:12,739 INFO L470 AbstractCegarLoop]: Abstraction has 1110 states and 1413 transitions. [2021-11-12 23:25:12,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:12,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1413 transitions. [2021-11-12 23:25:12,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:25:12,740 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:25:12,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:25:12,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-11-12 23:25:12,740 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:25:12,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:25:12,740 INFO L85 PathProgramCache]: Analyzing trace with hash 124901704, now seen corresponding path program 1 times [2021-11-12 23:25:12,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:25:12,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751038808] [2021-11-12 23:25:12,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:25:12,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:25:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:25:12,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:25:12,945 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:25:12,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751038808] [2021-11-12 23:25:12,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751038808] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:25:12,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:25:12,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:25:12,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434151881] [2021-11-12 23:25:12,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:25:12,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:25:12,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:25:12,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:25:12,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:25:12,947 INFO L87 Difference]: Start difference. First operand 1110 states and 1413 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:17,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:25:17,509 INFO L93 Difference]: Finished difference Result 2336 states and 3031 transitions. [2021-11-12 23:25:17,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 23:25:17,510 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:25:17,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:25:17,512 INFO L225 Difference]: With dead ends: 2336 [2021-11-12 23:25:17,512 INFO L226 Difference]: Without dead ends: 2224 [2021-11-12 23:25:17,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-11-12 23:25:17,513 INFO L933 BasicCegarLoop]: 594 mSDtfsCounter, 4395 mSDsluCounter, 1899 mSDsCounter, 0 mSdLazyCounter, 2232 mSolverCounterSat, 707 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1288.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4395 SdHoareTripleChecker+Valid, 2481 SdHoareTripleChecker+Invalid, 2939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.09ms SdHoareTripleChecker+Time, 707 IncrementalHoareTripleChecker+Valid, 2232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1575.67ms IncrementalHoareTripleChecker+Time [2021-11-12 23:25:17,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4395 Valid, 2481 Invalid, 2939 Unknown, 0 Unchecked, 14.09ms Time], IncrementalHoareTripleChecker [707 Valid, 2232 Invalid, 0 Unknown, 0 Unchecked, 1575.67ms Time] [2021-11-12 23:25:17,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2224 states. [2021-11-12 23:25:17,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2224 to 1118. [2021-11-12 23:25:17,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1118 states, 1096 states have (on average 1.2965328467153285) internal successors, (1421), 1117 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:17,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 1421 transitions. [2021-11-12 23:25:17,981 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 1421 transitions. Word has length 114 [2021-11-12 23:25:17,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:25:17,981 INFO L470 AbstractCegarLoop]: Abstraction has 1118 states and 1421 transitions. [2021-11-12 23:25:17,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:17,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 1421 transitions. [2021-11-12 23:25:17,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:25:17,982 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:25:17,982 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:25:17,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-11-12 23:25:17,983 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:25:17,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:25:17,983 INFO L85 PathProgramCache]: Analyzing trace with hash 2039173860, now seen corresponding path program 1 times [2021-11-12 23:25:17,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:25:17,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215215828] [2021-11-12 23:25:17,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:25:17,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:25:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:25:18,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:25:18,144 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:25:18,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215215828] [2021-11-12 23:25:18,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215215828] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:25:18,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:25:18,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:25:18,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879620244] [2021-11-12 23:25:18,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:25:18,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:25:18,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:25:18,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:25:18,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:25:18,146 INFO L87 Difference]: Start difference. First operand 1118 states and 1421 transitions. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:22,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:25:22,736 INFO L93 Difference]: Finished difference Result 2342 states and 3039 transitions. [2021-11-12 23:25:22,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-12 23:25:22,736 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:25:22,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:25:22,738 INFO L225 Difference]: With dead ends: 2342 [2021-11-12 23:25:22,738 INFO L226 Difference]: Without dead ends: 2234 [2021-11-12 23:25:22,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2021-11-12 23:25:22,739 INFO L933 BasicCegarLoop]: 565 mSDtfsCounter, 4621 mSDsluCounter, 1844 mSDsCounter, 0 mSdLazyCounter, 2124 mSolverCounterSat, 722 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1266.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4621 SdHoareTripleChecker+Valid, 2397 SdHoareTripleChecker+Invalid, 2846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.13ms SdHoareTripleChecker+Time, 722 IncrementalHoareTripleChecker+Valid, 2124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1548.31ms IncrementalHoareTripleChecker+Time [2021-11-12 23:25:22,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4621 Valid, 2397 Invalid, 2846 Unknown, 0 Unchecked, 13.13ms Time], IncrementalHoareTripleChecker [722 Valid, 2124 Invalid, 0 Unknown, 0 Unchecked, 1548.31ms Time] [2021-11-12 23:25:22,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2234 states. [2021-11-12 23:25:23,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2234 to 1126. [2021-11-12 23:25:23,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1126 states, 1104 states have (on average 1.2943840579710144) internal successors, (1429), 1125 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:23,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1429 transitions. [2021-11-12 23:25:23,253 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1429 transitions. Word has length 114 [2021-11-12 23:25:23,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:25:23,253 INFO L470 AbstractCegarLoop]: Abstraction has 1126 states and 1429 transitions. [2021-11-12 23:25:23,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:23,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1429 transitions. [2021-11-12 23:25:23,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 23:25:23,254 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:25:23,254 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:25:23,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-11-12 23:25:23,255 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:25:23,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:25:23,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1742591701, now seen corresponding path program 1 times [2021-11-12 23:25:23,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:25:23,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099066962] [2021-11-12 23:25:23,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:25:23,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:25:23,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:25:23,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:25:23,582 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:25:23,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099066962] [2021-11-12 23:25:23,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099066962] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:25:23,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:25:23,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-12 23:25:23,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309931848] [2021-11-12 23:25:23,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:25:23,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 23:25:23,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:25:23,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 23:25:23,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:25:23,584 INFO L87 Difference]: Start difference. First operand 1126 states and 1429 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:26,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:25:26,322 INFO L93 Difference]: Finished difference Result 2372 states and 3061 transitions. [2021-11-12 23:25:26,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:25:26,323 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-11-12 23:25:26,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:25:26,324 INFO L225 Difference]: With dead ends: 2372 [2021-11-12 23:25:26,325 INFO L226 Difference]: Without dead ends: 2166 [2021-11-12 23:25:26,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-11-12 23:25:26,325 INFO L933 BasicCegarLoop]: 1280 mSDtfsCounter, 3737 mSDsluCounter, 5571 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 419.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3737 SdHoareTripleChecker+Valid, 6722 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.42ms SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 503.96ms IncrementalHoareTripleChecker+Time [2021-11-12 23:25:26,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3737 Valid, 6722 Invalid, 773 Unknown, 0 Unchecked, 12.42ms Time], IncrementalHoareTripleChecker [36 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 503.96ms Time] [2021-11-12 23:25:26,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2166 states. [2021-11-12 23:25:26,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2166 to 1024. [2021-11-12 23:25:26,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1024 states, 1003 states have (on average 1.292123629112662) internal successors, (1296), 1023 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:26,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1296 transitions. [2021-11-12 23:25:26,817 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1296 transitions. Word has length 114 [2021-11-12 23:25:26,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:25:26,817 INFO L470 AbstractCegarLoop]: Abstraction has 1024 states and 1296 transitions. [2021-11-12 23:25:26,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:26,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1296 transitions. [2021-11-12 23:25:26,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-12 23:25:26,818 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:25:26,818 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:25:26,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-11-12 23:25:26,819 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:25:26,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:25:26,819 INFO L85 PathProgramCache]: Analyzing trace with hash 2017453909, now seen corresponding path program 1 times [2021-11-12 23:25:26,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:25:26,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042502236] [2021-11-12 23:25:26,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:25:26,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:25:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:25:26,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:25:26,926 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:25:26,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042502236] [2021-11-12 23:25:26,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042502236] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:25:26,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:25:26,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:25:26,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301116238] [2021-11-12 23:25:26,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:25:26,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:25:26,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:25:26,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:25:26,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:25:26,928 INFO L87 Difference]: Start difference. First operand 1024 states and 1296 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:29,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:25:29,260 INFO L93 Difference]: Finished difference Result 1686 states and 2157 transitions. [2021-11-12 23:25:29,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:25:29,260 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 [2021-11-12 23:25:29,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:25:29,262 INFO L225 Difference]: With dead ends: 1686 [2021-11-12 23:25:29,262 INFO L226 Difference]: Without dead ends: 1578 [2021-11-12 23:25:29,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:25:29,262 INFO L933 BasicCegarLoop]: 533 mSDtfsCounter, 1761 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 1720 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 686.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1761 SdHoareTripleChecker+Valid, 2090 SdHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.82ms SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 851.12ms IncrementalHoareTripleChecker+Time [2021-11-12 23:25:29,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1761 Valid, 2090 Invalid, 1809 Unknown, 0 Unchecked, 7.82ms Time], IncrementalHoareTripleChecker [89 Valid, 1720 Invalid, 0 Unknown, 0 Unchecked, 851.12ms Time] [2021-11-12 23:25:29,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2021-11-12 23:25:29,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1016. [2021-11-12 23:25:29,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 995 states have (on average 1.292462311557789) internal successors, (1286), 1015 states have internal predecessors, (1286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:29,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1286 transitions. [2021-11-12 23:25:29,730 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1286 transitions. Word has length 115 [2021-11-12 23:25:29,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:25:29,730 INFO L470 AbstractCegarLoop]: Abstraction has 1016 states and 1286 transitions. [2021-11-12 23:25:29,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:29,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1286 transitions. [2021-11-12 23:25:29,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-12 23:25:29,731 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:25:29,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:25:29,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-11-12 23:25:29,732 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:25:29,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:25:29,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1119837715, now seen corresponding path program 1 times [2021-11-12 23:25:29,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:25:29,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642571680] [2021-11-12 23:25:29,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:25:29,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:25:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:25:29,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:25:29,851 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:25:29,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642571680] [2021-11-12 23:25:29,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642571680] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:25:29,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:25:29,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:25:29,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182554101] [2021-11-12 23:25:29,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:25:29,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:25:29,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:25:29,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:25:29,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:25:29,853 INFO L87 Difference]: Start difference. First operand 1016 states and 1286 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:32,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:25:32,271 INFO L93 Difference]: Finished difference Result 1583 states and 2015 transitions. [2021-11-12 23:25:32,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:25:32,272 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 [2021-11-12 23:25:32,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:25:32,273 INFO L225 Difference]: With dead ends: 1583 [2021-11-12 23:25:32,273 INFO L226 Difference]: Without dead ends: 1578 [2021-11-12 23:25:32,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:25:32,274 INFO L933 BasicCegarLoop]: 536 mSDtfsCounter, 2434 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 1752 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 739.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2434 SdHoareTripleChecker+Valid, 2126 SdHoareTripleChecker+Invalid, 1884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.41ms SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 919.53ms IncrementalHoareTripleChecker+Time [2021-11-12 23:25:32,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2434 Valid, 2126 Invalid, 1884 Unknown, 0 Unchecked, 8.41ms Time], IncrementalHoareTripleChecker [132 Valid, 1752 Invalid, 0 Unknown, 0 Unchecked, 919.53ms Time] [2021-11-12 23:25:32,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2021-11-12 23:25:32,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1008. [2021-11-12 23:25:32,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 987 states have (on average 1.292806484295846) internal successors, (1276), 1007 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:32,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1276 transitions. [2021-11-12 23:25:32,848 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1276 transitions. Word has length 115 [2021-11-12 23:25:32,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:25:32,848 INFO L470 AbstractCegarLoop]: Abstraction has 1008 states and 1276 transitions. [2021-11-12 23:25:32,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:32,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1276 transitions. [2021-11-12 23:25:32,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-12 23:25:32,849 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:25:32,849 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:25:32,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-11-12 23:25:32,850 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:25:32,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:25:32,850 INFO L85 PathProgramCache]: Analyzing trace with hash 39331804, now seen corresponding path program 1 times [2021-11-12 23:25:32,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:25:32,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077262909] [2021-11-12 23:25:32,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:25:32,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:25:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:25:32,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:25:32,940 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:25:32,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077262909] [2021-11-12 23:25:32,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077262909] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:25:32,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:25:32,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:25:32,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138830508] [2021-11-12 23:25:32,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:25:32,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:25:32,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:25:32,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:25:32,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:25:32,942 INFO L87 Difference]: Start difference. First operand 1008 states and 1276 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:35,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:25:35,294 INFO L93 Difference]: Finished difference Result 1583 states and 2013 transitions. [2021-11-12 23:25:35,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:25:35,294 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 [2021-11-12 23:25:35,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:25:35,296 INFO L225 Difference]: With dead ends: 1583 [2021-11-12 23:25:35,296 INFO L226 Difference]: Without dead ends: 1578 [2021-11-12 23:25:35,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:25:35,296 INFO L933 BasicCegarLoop]: 539 mSDtfsCounter, 1688 mSDsluCounter, 1608 mSDsCounter, 0 mSdLazyCounter, 1752 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 708.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1688 SdHoareTripleChecker+Valid, 2138 SdHoareTripleChecker+Invalid, 1840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.58ms SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 878.94ms IncrementalHoareTripleChecker+Time [2021-11-12 23:25:35,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1688 Valid, 2138 Invalid, 1840 Unknown, 0 Unchecked, 7.58ms Time], IncrementalHoareTripleChecker [88 Valid, 1752 Invalid, 0 Unknown, 0 Unchecked, 878.94ms Time] [2021-11-12 23:25:35,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2021-11-12 23:25:35,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1000. [2021-11-12 23:25:35,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1000 states, 979 states have (on average 1.2931562819203268) internal successors, (1266), 999 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:35,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1266 transitions. [2021-11-12 23:25:35,778 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1266 transitions. Word has length 115 [2021-11-12 23:25:35,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:25:35,778 INFO L470 AbstractCegarLoop]: Abstraction has 1000 states and 1266 transitions. [2021-11-12 23:25:35,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:35,778 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1266 transitions. [2021-11-12 23:25:35,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-12 23:25:35,779 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:25:35,779 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:25:35,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-11-12 23:25:35,779 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:25:35,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:25:35,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1643497820, now seen corresponding path program 1 times [2021-11-12 23:25:35,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:25:35,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476045011] [2021-11-12 23:25:35,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:25:35,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:25:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:25:35,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:25:35,866 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:25:35,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476045011] [2021-11-12 23:25:35,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476045011] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:25:35,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:25:35,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:25:35,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390116181] [2021-11-12 23:25:35,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:25:35,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:25:35,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:25:35,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:25:35,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:25:35,867 INFO L87 Difference]: Start difference. First operand 1000 states and 1266 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:38,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:25:38,266 INFO L93 Difference]: Finished difference Result 1686 states and 2151 transitions. [2021-11-12 23:25:38,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:25:38,267 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 [2021-11-12 23:25:38,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:25:38,268 INFO L225 Difference]: With dead ends: 1686 [2021-11-12 23:25:38,268 INFO L226 Difference]: Without dead ends: 1578 [2021-11-12 23:25:38,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:25:38,269 INFO L933 BasicCegarLoop]: 540 mSDtfsCounter, 2414 mSDsluCounter, 1617 mSDsCounter, 0 mSdLazyCounter, 1752 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 721.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2414 SdHoareTripleChecker+Valid, 2148 SdHoareTripleChecker+Invalid, 1884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.02ms SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 895.61ms IncrementalHoareTripleChecker+Time [2021-11-12 23:25:38,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2414 Valid, 2148 Invalid, 1884 Unknown, 0 Unchecked, 8.02ms Time], IncrementalHoareTripleChecker [132 Valid, 1752 Invalid, 0 Unknown, 0 Unchecked, 895.61ms Time] [2021-11-12 23:25:38,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2021-11-12 23:25:38,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 992. [2021-11-12 23:25:38,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 971 states have (on average 1.29351184346035) internal successors, (1256), 991 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:38,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1256 transitions. [2021-11-12 23:25:38,741 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1256 transitions. Word has length 115 [2021-11-12 23:25:38,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:25:38,741 INFO L470 AbstractCegarLoop]: Abstraction has 992 states and 1256 transitions. [2021-11-12 23:25:38,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:38,741 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1256 transitions. [2021-11-12 23:25:38,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-12 23:25:38,742 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:25:38,742 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:25:38,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-11-12 23:25:38,742 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:25:38,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:25:38,743 INFO L85 PathProgramCache]: Analyzing trace with hash 394279225, now seen corresponding path program 1 times [2021-11-12 23:25:38,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:25:38,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773019709] [2021-11-12 23:25:38,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:25:38,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:25:38,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:25:38,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:25:38,827 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:25:38,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773019709] [2021-11-12 23:25:38,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773019709] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:25:38,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:25:38,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:25:38,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479861213] [2021-11-12 23:25:38,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:25:38,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:25:38,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:25:38,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:25:38,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:25:38,829 INFO L87 Difference]: Start difference. First operand 992 states and 1256 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:41,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:25:41,342 INFO L93 Difference]: Finished difference Result 1786 states and 2286 transitions. [2021-11-12 23:25:41,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:25:41,343 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 [2021-11-12 23:25:41,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:25:41,344 INFO L225 Difference]: With dead ends: 1786 [2021-11-12 23:25:41,344 INFO L226 Difference]: Without dead ends: 1664 [2021-11-12 23:25:41,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:25:41,345 INFO L933 BasicCegarLoop]: 588 mSDtfsCounter, 2392 mSDsluCounter, 1795 mSDsCounter, 0 mSdLazyCounter, 1866 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 751.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2392 SdHoareTripleChecker+Valid, 2374 SdHoareTripleChecker+Invalid, 1939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.07ms SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 931.65ms IncrementalHoareTripleChecker+Time [2021-11-12 23:25:41,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2392 Valid, 2374 Invalid, 1939 Unknown, 0 Unchecked, 9.07ms Time], IncrementalHoareTripleChecker [73 Valid, 1866 Invalid, 0 Unknown, 0 Unchecked, 931.65ms Time] [2021-11-12 23:25:41,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2021-11-12 23:25:41,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 984. [2021-11-12 23:25:41,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 984 states, 963 states have (on average 1.2938733125649013) internal successors, (1246), 983 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:41,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1246 transitions. [2021-11-12 23:25:41,860 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1246 transitions. Word has length 115 [2021-11-12 23:25:41,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:25:41,860 INFO L470 AbstractCegarLoop]: Abstraction has 984 states and 1246 transitions. [2021-11-12 23:25:41,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:41,860 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1246 transitions. [2021-11-12 23:25:41,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-12 23:25:41,861 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:25:41,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:25:41,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-11-12 23:25:41,862 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:25:41,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:25:41,862 INFO L85 PathProgramCache]: Analyzing trace with hash -390020060, now seen corresponding path program 1 times [2021-11-12 23:25:41,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:25:41,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691324609] [2021-11-12 23:25:41,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:25:41,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:25:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:25:41,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:25:41,990 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:25:41,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691324609] [2021-11-12 23:25:41,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691324609] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:25:41,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:25:41,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:25:41,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047876161] [2021-11-12 23:25:41,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:25:41,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:25:41,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:25:41,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:25:41,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:25:41,993 INFO L87 Difference]: Start difference. First operand 984 states and 1246 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:44,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:25:44,550 INFO L93 Difference]: Finished difference Result 1678 states and 2139 transitions. [2021-11-12 23:25:44,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:25:44,550 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 [2021-11-12 23:25:44,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:25:44,552 INFO L225 Difference]: With dead ends: 1678 [2021-11-12 23:25:44,552 INFO L226 Difference]: Without dead ends: 1570 [2021-11-12 23:25:44,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:25:44,553 INFO L933 BasicCegarLoop]: 553 mSDtfsCounter, 2370 mSDsluCounter, 1656 mSDsCounter, 0 mSdLazyCounter, 1768 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 772.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2370 SdHoareTripleChecker+Valid, 2200 SdHoareTripleChecker+Invalid, 1898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.25ms SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 957.72ms IncrementalHoareTripleChecker+Time [2021-11-12 23:25:44,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2370 Valid, 2200 Invalid, 1898 Unknown, 0 Unchecked, 9.25ms Time], IncrementalHoareTripleChecker [130 Valid, 1768 Invalid, 0 Unknown, 0 Unchecked, 957.72ms Time] [2021-11-12 23:25:44,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2021-11-12 23:25:45,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 976. [2021-11-12 23:25:45,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 955 states have (on average 1.294240837696335) internal successors, (1236), 975 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:45,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1236 transitions. [2021-11-12 23:25:45,042 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1236 transitions. Word has length 115 [2021-11-12 23:25:45,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:25:45,043 INFO L470 AbstractCegarLoop]: Abstraction has 976 states and 1236 transitions. [2021-11-12 23:25:45,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:45,043 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1236 transitions. [2021-11-12 23:25:45,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-12 23:25:45,044 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:25:45,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:25:45,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-11-12 23:25:45,044 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:25:45,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:25:45,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1701216580, now seen corresponding path program 1 times [2021-11-12 23:25:45,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:25:45,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334450872] [2021-11-12 23:25:45,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:25:45,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:25:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:25:45,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:25:45,159 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:25:45,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334450872] [2021-11-12 23:25:45,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334450872] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:25:45,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:25:45,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:25:45,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397104891] [2021-11-12 23:25:45,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:25:45,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:25:45,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:25:45,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:25:45,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:25:45,161 INFO L87 Difference]: Start difference. First operand 976 states and 1236 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:47,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:25:47,615 INFO L93 Difference]: Finished difference Result 1682 states and 2142 transitions. [2021-11-12 23:25:47,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:25:47,616 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 [2021-11-12 23:25:47,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:25:47,618 INFO L225 Difference]: With dead ends: 1682 [2021-11-12 23:25:47,618 INFO L226 Difference]: Without dead ends: 1570 [2021-11-12 23:25:47,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:25:47,619 INFO L933 BasicCegarLoop]: 557 mSDtfsCounter, 1654 mSDsluCounter, 1660 mSDsCounter, 0 mSdLazyCounter, 1768 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 720.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1654 SdHoareTripleChecker+Valid, 2208 SdHoareTripleChecker+Invalid, 1855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.83ms SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 894.56ms IncrementalHoareTripleChecker+Time [2021-11-12 23:25:47,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1654 Valid, 2208 Invalid, 1855 Unknown, 0 Unchecked, 7.83ms Time], IncrementalHoareTripleChecker [87 Valid, 1768 Invalid, 0 Unknown, 0 Unchecked, 894.56ms Time] [2021-11-12 23:25:47,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2021-11-12 23:25:48,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 968. [2021-11-12 23:25:48,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 947 states have (on average 1.2946145723336853) internal successors, (1226), 967 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:48,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1226 transitions. [2021-11-12 23:25:48,080 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1226 transitions. Word has length 115 [2021-11-12 23:25:48,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:25:48,080 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1226 transitions. [2021-11-12 23:25:48,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:48,080 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1226 transitions. [2021-11-12 23:25:48,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-12 23:25:48,081 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:25:48,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:25:48,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-11-12 23:25:48,082 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:25:48,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:25:48,082 INFO L85 PathProgramCache]: Analyzing trace with hash 544737330, now seen corresponding path program 1 times [2021-11-12 23:25:48,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:25:48,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359471905] [2021-11-12 23:25:48,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:25:48,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:25:48,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:25:48,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:25:48,187 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:25:48,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359471905] [2021-11-12 23:25:48,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359471905] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:25:48,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:25:48,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:25:48,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930141008] [2021-11-12 23:25:48,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:25:48,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:25:48,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:25:48,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:25:48,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:25:48,188 INFO L87 Difference]: Start difference. First operand 968 states and 1226 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:50,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:25:50,765 INFO L93 Difference]: Finished difference Result 1898 states and 2437 transitions. [2021-11-12 23:25:50,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:25:50,766 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 [2021-11-12 23:25:50,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:25:50,768 INFO L225 Difference]: With dead ends: 1898 [2021-11-12 23:25:50,768 INFO L226 Difference]: Without dead ends: 1730 [2021-11-12 23:25:50,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:25:50,768 INFO L933 BasicCegarLoop]: 675 mSDtfsCounter, 2261 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 2110 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 818.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2261 SdHoareTripleChecker+Valid, 2677 SdHoareTripleChecker+Invalid, 2151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.20ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1009.99ms IncrementalHoareTripleChecker+Time [2021-11-12 23:25:50,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2261 Valid, 2677 Invalid, 2151 Unknown, 0 Unchecked, 9.20ms Time], IncrementalHoareTripleChecker [41 Valid, 2110 Invalid, 0 Unknown, 0 Unchecked, 1009.99ms Time] [2021-11-12 23:25:50,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-11-12 23:25:51,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 960. [2021-11-12 23:25:51,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 960 states, 939 states have (on average 1.2949946751863686) internal successors, (1216), 959 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:51,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1216 transitions. [2021-11-12 23:25:51,256 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1216 transitions. Word has length 115 [2021-11-12 23:25:51,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:25:51,256 INFO L470 AbstractCegarLoop]: Abstraction has 960 states and 1216 transitions. [2021-11-12 23:25:51,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:51,256 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1216 transitions. [2021-11-12 23:25:51,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-12 23:25:51,257 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:25:51,257 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:25:51,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-11-12 23:25:51,257 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:25:51,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:25:51,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1769687726, now seen corresponding path program 1 times [2021-11-12 23:25:51,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:25:51,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918268241] [2021-11-12 23:25:51,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:25:51,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:25:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:25:51,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:25:51,349 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:25:51,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918268241] [2021-11-12 23:25:51,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918268241] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:25:51,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:25:51,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:25:51,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666342258] [2021-11-12 23:25:51,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:25:51,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:25:51,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:25:51,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:25:51,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:25:51,351 INFO L87 Difference]: Start difference. First operand 960 states and 1216 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:53,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:25:53,826 INFO L93 Difference]: Finished difference Result 1674 states and 2130 transitions. [2021-11-12 23:25:53,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:25:53,827 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 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 [2021-11-12 23:25:53,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:25:53,828 INFO L225 Difference]: With dead ends: 1674 [2021-11-12 23:25:53,828 INFO L226 Difference]: Without dead ends: 1562 [2021-11-12 23:25:53,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:25:53,829 INFO L933 BasicCegarLoop]: 579 mSDtfsCounter, 1595 mSDsluCounter, 1724 mSDsCounter, 0 mSdLazyCounter, 1894 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 764.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1595 SdHoareTripleChecker+Valid, 2294 SdHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.97ms SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 944.19ms IncrementalHoareTripleChecker+Time [2021-11-12 23:25:53,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1595 Valid, 2294 Invalid, 1979 Unknown, 0 Unchecked, 7.97ms Time], IncrementalHoareTripleChecker [85 Valid, 1894 Invalid, 0 Unknown, 0 Unchecked, 944.19ms Time] [2021-11-12 23:25:53,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1562 states. [2021-11-12 23:25:54,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1562 to 952. [2021-11-12 23:25:54,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 931 states have (on average 1.2953813104189045) internal successors, (1206), 951 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:54,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1206 transitions. [2021-11-12 23:25:54,348 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1206 transitions. Word has length 115 [2021-11-12 23:25:54,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:25:54,348 INFO L470 AbstractCegarLoop]: Abstraction has 952 states and 1206 transitions. [2021-11-12 23:25:54,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 7 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:54,348 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1206 transitions. [2021-11-12 23:25:54,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-12 23:25:54,349 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:25:54,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:25:54,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-11-12 23:25:54,349 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:25:54,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:25:54,349 INFO L85 PathProgramCache]: Analyzing trace with hash 736668301, now seen corresponding path program 1 times [2021-11-12 23:25:54,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:25:54,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848129917] [2021-11-12 23:25:54,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:25:54,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:25:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:25:54,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:25:54,715 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:25:54,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848129917] [2021-11-12 23:25:54,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848129917] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:25:54,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:25:54,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-12 23:25:54,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174903259] [2021-11-12 23:25:54,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:25:54,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 23:25:54,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:25:54,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 23:25:54,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:25:54,717 INFO L87 Difference]: Start difference. First operand 952 states and 1206 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:57,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:25:57,850 INFO L93 Difference]: Finished difference Result 2064 states and 2663 transitions. [2021-11-12 23:25:57,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:25:57,851 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 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 [2021-11-12 23:25:57,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:25:57,853 INFO L225 Difference]: With dead ends: 2064 [2021-11-12 23:25:57,853 INFO L226 Difference]: Without dead ends: 1924 [2021-11-12 23:25:57,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-11-12 23:25:57,854 INFO L933 BasicCegarLoop]: 1014 mSDtfsCounter, 3186 mSDsluCounter, 4353 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 497.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3186 SdHoareTripleChecker+Valid, 5267 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.54ms SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 594.72ms IncrementalHoareTripleChecker+Time [2021-11-12 23:25:57,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3186 Valid, 5267 Invalid, 830 Unknown, 0 Unchecked, 12.54ms Time], IncrementalHoareTripleChecker [53 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 594.72ms Time] [2021-11-12 23:25:57,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1924 states. [2021-11-12 23:25:58,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1924 to 916. [2021-11-12 23:25:58,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 895 states have (on average 1.2916201117318435) internal successors, (1156), 915 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:58,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1156 transitions. [2021-11-12 23:25:58,326 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1156 transitions. Word has length 116 [2021-11-12 23:25:58,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:25:58,327 INFO L470 AbstractCegarLoop]: Abstraction has 916 states and 1156 transitions. [2021-11-12 23:25:58,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:25:58,327 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1156 transitions. [2021-11-12 23:25:58,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-12 23:25:58,328 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:25:58,328 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:25:58,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-11-12 23:25:58,328 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:25:58,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:25:58,328 INFO L85 PathProgramCache]: Analyzing trace with hash 61393649, now seen corresponding path program 1 times [2021-11-12 23:25:58,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:25:58,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546455725] [2021-11-12 23:25:58,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:25:58,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:25:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:25:58,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:25:58,642 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:25:58,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546455725] [2021-11-12 23:25:58,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546455725] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:25:58,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:25:58,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-12 23:25:58,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940153862] [2021-11-12 23:25:58,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:25:58,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-12 23:25:58,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:25:58,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-12 23:25:58,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:25:58,644 INFO L87 Difference]: Start difference. First operand 916 states and 1156 transitions. Second operand has 13 states, 13 states have (on average 8.923076923076923) internal successors, (116), 12 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:03,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:03,487 INFO L93 Difference]: Finished difference Result 2998 states and 3874 transitions. [2021-11-12 23:26:03,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-12 23:26:03,488 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.923076923076923) internal successors, (116), 12 states have internal predecessors, (116), 0 states have call successors, (0), 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 [2021-11-12 23:26:03,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:03,490 INFO L225 Difference]: With dead ends: 2998 [2021-11-12 23:26:03,490 INFO L226 Difference]: Without dead ends: 2840 [2021-11-12 23:26:03,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-11-12 23:26:03,491 INFO L933 BasicCegarLoop]: 1637 mSDtfsCounter, 2890 mSDsluCounter, 12285 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 787.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2890 SdHoareTripleChecker+Valid, 13579 SdHoareTripleChecker+Invalid, 1466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.85ms SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 939.38ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:03,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2890 Valid, 13579 Invalid, 1466 Unknown, 0 Unchecked, 20.85ms Time], IncrementalHoareTripleChecker [36 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 939.38ms Time] [2021-11-12 23:26:03,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2840 states. [2021-11-12 23:26:03,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2840 to 862. [2021-11-12 23:26:03,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 862 states, 842 states have (on average 1.2909738717339667) internal successors, (1087), 861 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:03,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 1087 transitions. [2021-11-12 23:26:03,956 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 1087 transitions. Word has length 116 [2021-11-12 23:26:03,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:03,956 INFO L470 AbstractCegarLoop]: Abstraction has 862 states and 1087 transitions. [2021-11-12 23:26:03,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.923076923076923) internal successors, (116), 12 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:03,956 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 1087 transitions. [2021-11-12 23:26:03,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-12 23:26:03,957 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:03,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:26:03,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-11-12 23:26:03,957 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:26:03,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:03,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1141163554, now seen corresponding path program 1 times [2021-11-12 23:26:03,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:26:03,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952236099] [2021-11-12 23:26:03,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:03,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:26:03,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:04,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:26:04,214 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:26:04,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952236099] [2021-11-12 23:26:04,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952236099] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:26:04,215 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:26:04,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-12 23:26:04,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264825326] [2021-11-12 23:26:04,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:04,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 23:26:04,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:26:04,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 23:26:04,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:26:04,216 INFO L87 Difference]: Start difference. First operand 862 states and 1087 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:05,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:05,484 INFO L93 Difference]: Finished difference Result 1462 states and 1869 transitions. [2021-11-12 23:26:05,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-12 23:26:05,484 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 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 [2021-11-12 23:26:05,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:05,485 INFO L225 Difference]: With dead ends: 1462 [2021-11-12 23:26:05,486 INFO L226 Difference]: Without dead ends: 1088 [2021-11-12 23:26:05,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:26:05,486 INFO L933 BasicCegarLoop]: 735 mSDtfsCounter, 1715 mSDsluCounter, 3153 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 186.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1715 SdHoareTripleChecker+Valid, 3834 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.39ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 222.88ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:05,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1715 Valid, 3834 Invalid, 341 Unknown, 0 Unchecked, 6.39ms Time], IncrementalHoareTripleChecker [15 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 222.88ms Time] [2021-11-12 23:26:05,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2021-11-12 23:26:05,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 592. [2021-11-12 23:26:05,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 577 states have (on average 1.2842287694974004) internal successors, (741), 591 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:05,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 741 transitions. [2021-11-12 23:26:05,879 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 741 transitions. Word has length 116 [2021-11-12 23:26:05,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:05,879 INFO L470 AbstractCegarLoop]: Abstraction has 592 states and 741 transitions. [2021-11-12 23:26:05,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:05,879 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 741 transitions. [2021-11-12 23:26:05,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-12 23:26:05,880 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:05,880 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:26:05,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-11-12 23:26:05,880 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:26:05,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:05,882 INFO L85 PathProgramCache]: Analyzing trace with hash -673900795, now seen corresponding path program 1 times [2021-11-12 23:26:05,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:26:05,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000926904] [2021-11-12 23:26:05,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:05,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:26:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:06,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:26:06,164 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:26:06,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000926904] [2021-11-12 23:26:06,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000926904] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:26:06,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:26:06,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-12 23:26:06,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623521219] [2021-11-12 23:26:06,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:06,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 23:26:06,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:26:06,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 23:26:06,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:26:06,165 INFO L87 Difference]: Start difference. First operand 592 states and 741 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:08,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:08,738 INFO L93 Difference]: Finished difference Result 1542 states and 1994 transitions. [2021-11-12 23:26:08,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:26:08,738 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 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 [2021-11-12 23:26:08,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:08,739 INFO L225 Difference]: With dead ends: 1542 [2021-11-12 23:26:08,739 INFO L226 Difference]: Without dead ends: 1384 [2021-11-12 23:26:08,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-11-12 23:26:08,740 INFO L933 BasicCegarLoop]: 812 mSDtfsCounter, 1967 mSDsluCounter, 3199 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 324.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1967 SdHoareTripleChecker+Valid, 3892 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.50ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 391.35ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:08,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1967 Valid, 3892 Invalid, 616 Unknown, 0 Unchecked, 8.50ms Time], IncrementalHoareTripleChecker [26 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 391.35ms Time] [2021-11-12 23:26:08,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2021-11-12 23:26:09,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 538. [2021-11-12 23:26:09,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 526 states have (on average 1.273764258555133) internal successors, (670), 537 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:09,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 670 transitions. [2021-11-12 23:26:09,111 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 670 transitions. Word has length 116 [2021-11-12 23:26:09,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:09,111 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 670 transitions. [2021-11-12 23:26:09,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:09,111 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 670 transitions. [2021-11-12 23:26:09,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-12 23:26:09,112 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:09,112 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:26:09,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-11-12 23:26:09,112 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:26:09,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:09,113 INFO L85 PathProgramCache]: Analyzing trace with hash -615531059, now seen corresponding path program 1 times [2021-11-12 23:26:09,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:26:09,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659489350] [2021-11-12 23:26:09,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:09,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:26:09,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:09,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:26:09,379 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:26:09,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659489350] [2021-11-12 23:26:09,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659489350] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:26:09,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:26:09,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-12 23:26:09,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524059312] [2021-11-12 23:26:09,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:09,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 23:26:09,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:26:09,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 23:26:09,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:26:09,380 INFO L87 Difference]: Start difference. First operand 538 states and 670 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:12,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:12,033 INFO L93 Difference]: Finished difference Result 1386 states and 1785 transitions. [2021-11-12 23:26:12,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:26:12,034 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 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 [2021-11-12 23:26:12,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:12,035 INFO L225 Difference]: With dead ends: 1386 [2021-11-12 23:26:12,035 INFO L226 Difference]: Without dead ends: 1260 [2021-11-12 23:26:12,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-11-12 23:26:12,035 INFO L933 BasicCegarLoop]: 749 mSDtfsCounter, 1664 mSDsluCounter, 3052 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 394.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1664 SdHoareTripleChecker+Valid, 3654 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.54ms SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 475.81ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:12,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1664 Valid, 3654 Invalid, 771 Unknown, 0 Unchecked, 8.54ms Time], IncrementalHoareTripleChecker [36 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 475.81ms Time] [2021-11-12 23:26:12,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2021-11-12 23:26:12,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 516. [2021-11-12 23:26:12,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 506 states have (on average 1.2648221343873518) internal successors, (640), 515 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:12,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 640 transitions. [2021-11-12 23:26:12,385 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 640 transitions. Word has length 116 [2021-11-12 23:26:12,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:12,386 INFO L470 AbstractCegarLoop]: Abstraction has 516 states and 640 transitions. [2021-11-12 23:26:12,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 11 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:12,386 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 640 transitions. [2021-11-12 23:26:12,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-12 23:26:12,387 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:12,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:26:12,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-11-12 23:26:12,387 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:26:12,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:12,387 INFO L85 PathProgramCache]: Analyzing trace with hash 736410642, now seen corresponding path program 1 times [2021-11-12 23:26:12,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:26:12,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207854876] [2021-11-12 23:26:12,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:12,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:26:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:12,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:26:12,682 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:26:12,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207854876] [2021-11-12 23:26:12,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207854876] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:26:12,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:26:12,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-12 23:26:12,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699471994] [2021-11-12 23:26:12,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:12,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-12 23:26:12,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:26:12,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-12 23:26:12,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:26:12,683 INFO L87 Difference]: Start difference. First operand 516 states and 640 transitions. Second operand has 13 states, 13 states have (on average 8.923076923076923) internal successors, (116), 12 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:16,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:16,604 INFO L93 Difference]: Finished difference Result 1852 states and 2405 transitions. [2021-11-12 23:26:16,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-12 23:26:16,605 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.923076923076923) internal successors, (116), 12 states have internal predecessors, (116), 0 states have call successors, (0), 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 [2021-11-12 23:26:16,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:16,606 INFO L225 Difference]: With dead ends: 1852 [2021-11-12 23:26:16,606 INFO L226 Difference]: Without dead ends: 1636 [2021-11-12 23:26:16,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-11-12 23:26:16,610 INFO L933 BasicCegarLoop]: 868 mSDtfsCounter, 1770 mSDsluCounter, 4726 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 449.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1770 SdHoareTripleChecker+Valid, 5307 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.64ms SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 539.26ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:16,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1770 Valid, 5307 Invalid, 877 Unknown, 0 Unchecked, 9.64ms Time], IncrementalHoareTripleChecker [25 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 539.26ms Time] [2021-11-12 23:26:16,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2021-11-12 23:26:16,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 404. [2021-11-12 23:26:16,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 398 states have (on average 1.2412060301507537) internal successors, (494), 403 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:16,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 494 transitions. [2021-11-12 23:26:16,940 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 494 transitions. Word has length 116 [2021-11-12 23:26:16,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:16,941 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 494 transitions. [2021-11-12 23:26:16,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.923076923076923) internal successors, (116), 12 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:16,941 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 494 transitions. [2021-11-12 23:26:16,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-12 23:26:16,941 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:16,941 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:26:16,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-11-12 23:26:16,942 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:26:16,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:16,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1386194619, now seen corresponding path program 1 times [2021-11-12 23:26:16,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:26:16,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319144163] [2021-11-12 23:26:16,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:16,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:26:16,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:17,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:26:17,670 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:26:17,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319144163] [2021-11-12 23:26:17,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319144163] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:26:17,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:26:17,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-12 23:26:17,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843559895] [2021-11-12 23:26:17,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:17,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-12 23:26:17,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:26:17,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-12 23:26:17,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2021-11-12 23:26:17,671 INFO L87 Difference]: Start difference. First operand 404 states and 494 transitions. Second operand has 22 states, 22 states have (on average 5.2727272727272725) internal successors, (116), 21 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:22,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:22,145 INFO L93 Difference]: Finished difference Result 1704 states and 2187 transitions. [2021-11-12 23:26:22,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-12 23:26:22,145 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.2727272727272725) internal successors, (116), 21 states have internal predecessors, (116), 0 states have call successors, (0), 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 [2021-11-12 23:26:22,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:22,146 INFO L225 Difference]: With dead ends: 1704 [2021-11-12 23:26:22,146 INFO L226 Difference]: Without dead ends: 1496 [2021-11-12 23:26:22,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=411, Invalid=1659, Unknown=0, NotChecked=0, Total=2070 [2021-11-12 23:26:22,147 INFO L933 BasicCegarLoop]: 682 mSDtfsCounter, 3224 mSDsluCounter, 7962 mSDsCounter, 0 mSdLazyCounter, 2217 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1036.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3224 SdHoareTripleChecker+Valid, 8372 SdHoareTripleChecker+Invalid, 2296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.03ms SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1237.42ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:22,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3224 Valid, 8372 Invalid, 2296 Unknown, 0 Unchecked, 18.03ms Time], IncrementalHoareTripleChecker [79 Valid, 2217 Invalid, 0 Unknown, 0 Unchecked, 1237.42ms Time] [2021-11-12 23:26:22,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2021-11-12 23:26:22,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 416. [2021-11-12 23:26:22,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 410 states have (on average 1.2341463414634146) internal successors, (506), 415 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:22,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 506 transitions. [2021-11-12 23:26:22,496 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 506 transitions. Word has length 116 [2021-11-12 23:26:22,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:22,497 INFO L470 AbstractCegarLoop]: Abstraction has 416 states and 506 transitions. [2021-11-12 23:26:22,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.2727272727272725) internal successors, (116), 21 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:22,497 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 506 transitions. [2021-11-12 23:26:22,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-12 23:26:22,497 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:22,497 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:26:22,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-11-12 23:26:22,498 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:26:22,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:22,498 INFO L85 PathProgramCache]: Analyzing trace with hash -2011872188, now seen corresponding path program 1 times [2021-11-12 23:26:22,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:26:22,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042080540] [2021-11-12 23:26:22,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:22,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:26:22,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:22,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:26:22,665 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:26:22,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042080540] [2021-11-12 23:26:22,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042080540] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:26:22,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:26:22,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-12 23:26:22,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827828355] [2021-11-12 23:26:22,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:22,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:26:22,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:26:22,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:26:22,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-12 23:26:22,667 INFO L87 Difference]: Start difference. First operand 416 states and 506 transitions. Second operand has 11 states, 11 states have (on average 10.636363636363637) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:26,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:26,828 INFO L93 Difference]: Finished difference Result 1554 states and 2015 transitions. [2021-11-12 23:26:26,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-12 23:26:26,828 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.636363636363637) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 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 [2021-11-12 23:26:26,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:26,829 INFO L225 Difference]: With dead ends: 1554 [2021-11-12 23:26:26,829 INFO L226 Difference]: Without dead ends: 1420 [2021-11-12 23:26:26,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=242, Invalid=688, Unknown=0, NotChecked=0, Total=930 [2021-11-12 23:26:26,830 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 2424 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 773.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2424 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.91ms SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 942.05ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:26,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2424 Valid, 1427 Invalid, 1629 Unknown, 0 Unchecked, 7.91ms Time], IncrementalHoareTripleChecker [186 Valid, 1443 Invalid, 0 Unknown, 0 Unchecked, 942.05ms Time] [2021-11-12 23:26:26,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2021-11-12 23:26:27,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 424. [2021-11-12 23:26:27,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 418 states have (on average 1.229665071770335) internal successors, (514), 423 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:27,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 514 transitions. [2021-11-12 23:26:27,185 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 514 transitions. Word has length 117 [2021-11-12 23:26:27,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:27,185 INFO L470 AbstractCegarLoop]: Abstraction has 424 states and 514 transitions. [2021-11-12 23:26:27,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.636363636363637) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:27,185 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 514 transitions. [2021-11-12 23:26:27,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-12 23:26:27,186 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:27,186 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:26:27,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-11-12 23:26:27,186 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:26:27,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:27,186 INFO L85 PathProgramCache]: Analyzing trace with hash 2069034064, now seen corresponding path program 1 times [2021-11-12 23:26:27,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:26:27,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984773887] [2021-11-12 23:26:27,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:27,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:26:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:27,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:26:27,453 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:26:27,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984773887] [2021-11-12 23:26:27,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984773887] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:26:27,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:26:27,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-12 23:26:27,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836532172] [2021-11-12 23:26:27,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:27,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 23:26:27,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:26:27,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 23:26:27,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:26:27,454 INFO L87 Difference]: Start difference. First operand 424 states and 514 transitions. Second operand has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:28,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:28,801 INFO L93 Difference]: Finished difference Result 724 states and 899 transitions. [2021-11-12 23:26:28,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:26:28,801 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 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 [2021-11-12 23:26:28,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:28,802 INFO L225 Difference]: With dead ends: 724 [2021-11-12 23:26:28,802 INFO L226 Difference]: Without dead ends: 614 [2021-11-12 23:26:28,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-11-12 23:26:28,803 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 1487 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 255.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.71ms SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 301.60ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:28,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1487 Valid, 1418 Invalid, 519 Unknown, 0 Unchecked, 3.71ms Time], IncrementalHoareTripleChecker [44 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 301.60ms Time] [2021-11-12 23:26:28,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2021-11-12 23:26:29,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 412. [2021-11-12 23:26:29,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 407 states have (on average 1.221130221130221) internal successors, (497), 411 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:29,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 497 transitions. [2021-11-12 23:26:29,172 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 497 transitions. Word has length 117 [2021-11-12 23:26:29,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:29,172 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 497 transitions. [2021-11-12 23:26:29,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:29,172 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 497 transitions. [2021-11-12 23:26:29,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-12 23:26:29,173 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:29,173 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:26:29,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-11-12 23:26:29,173 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:26:29,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:29,173 INFO L85 PathProgramCache]: Analyzing trace with hash 288516916, now seen corresponding path program 1 times [2021-11-12 23:26:29,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:26:29,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33580175] [2021-11-12 23:26:29,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:29,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:26:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:29,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:26:29,542 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:26:29,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33580175] [2021-11-12 23:26:29,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33580175] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:26:29,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:26:29,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-12 23:26:29,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343199293] [2021-11-12 23:26:29,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:29,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-12 23:26:29,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:26:29,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-12 23:26:29,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-12 23:26:29,543 INFO L87 Difference]: Start difference. First operand 412 states and 497 transitions. Second operand has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:32,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:32,426 INFO L93 Difference]: Finished difference Result 1276 states and 1620 transitions. [2021-11-12 23:26:32,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-12 23:26:32,426 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 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 [2021-11-12 23:26:32,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:32,427 INFO L225 Difference]: With dead ends: 1276 [2021-11-12 23:26:32,427 INFO L226 Difference]: Without dead ends: 1048 [2021-11-12 23:26:32,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-11-12 23:26:32,428 INFO L933 BasicCegarLoop]: 570 mSDtfsCounter, 1197 mSDsluCounter, 3882 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 361.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 4213 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.23ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 428.57ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:32,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1197 Valid, 4213 Invalid, 712 Unknown, 0 Unchecked, 7.23ms Time], IncrementalHoareTripleChecker [18 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 428.57ms Time] [2021-11-12 23:26:32,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2021-11-12 23:26:32,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 288. [2021-11-12 23:26:32,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 286 states have (on average 1.1958041958041958) internal successors, (342), 287 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:32,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 342 transitions. [2021-11-12 23:26:32,734 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 342 transitions. Word has length 117 [2021-11-12 23:26:32,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:32,734 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 342 transitions. [2021-11-12 23:26:32,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:32,734 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 342 transitions. [2021-11-12 23:26:32,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-12 23:26:32,735 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:32,735 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:26:32,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-11-12 23:26:32,735 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:26:32,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:32,736 INFO L85 PathProgramCache]: Analyzing trace with hash -531832465, now seen corresponding path program 1 times [2021-11-12 23:26:32,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:26:32,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312783223] [2021-11-12 23:26:32,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:32,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:26:32,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:32,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:26:32,819 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:26:32,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312783223] [2021-11-12 23:26:32,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312783223] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:26:32,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:26:32,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-12 23:26:32,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228960465] [2021-11-12 23:26:32,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:32,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:26:32,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:26:32,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:26:32,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:26:32,820 INFO L87 Difference]: Start difference. First operand 288 states and 342 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:33,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:33,759 INFO L93 Difference]: Finished difference Result 566 states and 704 transitions. [2021-11-12 23:26:33,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 23:26:33,760 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2021-11-12 23:26:33,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:33,760 INFO L225 Difference]: With dead ends: 566 [2021-11-12 23:26:33,760 INFO L226 Difference]: Without dead ends: 432 [2021-11-12 23:26:33,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2021-11-12 23:26:33,761 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 725 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 191.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.89ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 233.98ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:33,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [725 Valid, 550 Invalid, 503 Unknown, 0 Unchecked, 1.89ms Time], IncrementalHoareTripleChecker [14 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 233.98ms Time] [2021-11-12 23:26:33,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2021-11-12 23:26:34,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 280. [2021-11-12 23:26:34,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 278 states have (on average 1.1942446043165467) internal successors, (332), 279 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:34,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 332 transitions. [2021-11-12 23:26:34,060 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 332 transitions. Word has length 118 [2021-11-12 23:26:34,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:34,061 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 332 transitions. [2021-11-12 23:26:34,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:34,061 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 332 transitions. [2021-11-12 23:26:34,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-12 23:26:34,061 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:34,061 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:26:34,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-11-12 23:26:34,061 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:26:34,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:34,062 INFO L85 PathProgramCache]: Analyzing trace with hash -2078533446, now seen corresponding path program 1 times [2021-11-12 23:26:34,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:26:34,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122187826] [2021-11-12 23:26:34,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:34,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:26:34,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:34,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:26:34,340 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:26:34,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122187826] [2021-11-12 23:26:34,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122187826] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:26:34,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:26:34,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-12 23:26:34,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550818139] [2021-11-12 23:26:34,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:34,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 23:26:34,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:26:34,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 23:26:34,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:26:34,341 INFO L87 Difference]: Start difference. First operand 280 states and 332 transitions. Second operand has 12 states, 12 states have (on average 9.916666666666666) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:36,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:36,040 INFO L93 Difference]: Finished difference Result 646 states and 812 transitions. [2021-11-12 23:26:36,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:26:36,040 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.916666666666666) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2021-11-12 23:26:36,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:36,041 INFO L225 Difference]: With dead ends: 646 [2021-11-12 23:26:36,041 INFO L226 Difference]: Without dead ends: 640 [2021-11-12 23:26:36,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-11-12 23:26:36,041 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 1041 mSDsluCounter, 1450 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 197.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.46ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 235.51ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:36,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1041 Valid, 1744 Invalid, 401 Unknown, 0 Unchecked, 3.46ms Time], IncrementalHoareTripleChecker [14 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 235.51ms Time] [2021-11-12 23:26:36,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2021-11-12 23:26:36,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 274. [2021-11-12 23:26:36,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 273 states have (on average 1.1904761904761905) internal successors, (325), 273 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:36,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 325 transitions. [2021-11-12 23:26:36,344 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 325 transitions. Word has length 119 [2021-11-12 23:26:36,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:36,344 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 325 transitions. [2021-11-12 23:26:36,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.916666666666666) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:36,344 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 325 transitions. [2021-11-12 23:26:36,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-12 23:26:36,345 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:36,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:26:36,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-11-12 23:26:36,345 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:26:36,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:36,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1184257751, now seen corresponding path program 1 times [2021-11-12 23:26:36,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:26:36,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084361579] [2021-11-12 23:26:36,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:36,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:26:36,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:36,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:26:36,396 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:26:36,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084361579] [2021-11-12 23:26:36,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084361579] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:26:36,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:26:36,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 23:26:36,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782477280] [2021-11-12 23:26:36,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:36,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:26:36,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:26:36,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:26:36,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:26:36,398 INFO L87 Difference]: Start difference. First operand 274 states and 325 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:36,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:36,891 INFO L93 Difference]: Finished difference Result 386 states and 475 transitions. [2021-11-12 23:26:36,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:26:36,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 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 139 [2021-11-12 23:26:36,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:36,892 INFO L225 Difference]: With dead ends: 386 [2021-11-12 23:26:36,892 INFO L226 Difference]: Without dead ends: 333 [2021-11-12 23:26:36,892 INFO L932 BasicCegarLoop]: 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 [2021-11-12 23:26:36,893 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 83 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.42ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.81ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:36,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 392 Invalid, 32 Unknown, 0 Unchecked, 0.42ms Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 37.81ms Time] [2021-11-12 23:26:36,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2021-11-12 23:26:37,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 323. [2021-11-12 23:26:37,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 322 states have (on average 1.2111801242236024) internal successors, (390), 322 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:37,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 390 transitions. [2021-11-12 23:26:37,320 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 390 transitions. Word has length 139 [2021-11-12 23:26:37,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:37,320 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 390 transitions. [2021-11-12 23:26:37,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:37,321 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 390 transitions. [2021-11-12 23:26:37,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-12 23:26:37,321 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:37,321 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:26:37,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-11-12 23:26:37,321 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:26:37,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:37,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1527983402, now seen corresponding path program 1 times [2021-11-12 23:26:37,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:26:37,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323416070] [2021-11-12 23:26:37,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:37,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:26:37,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:37,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:26:37,382 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:26:37,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323416070] [2021-11-12 23:26:37,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323416070] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:26:37,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:26:37,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 23:26:37,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862650436] [2021-11-12 23:26:37,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:37,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:26:37,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:26:37,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:26:37,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:26:37,383 INFO L87 Difference]: Start difference. First operand 323 states and 390 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:38,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:38,235 INFO L93 Difference]: Finished difference Result 625 states and 796 transitions. [2021-11-12 23:26:38,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:26:38,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2021-11-12 23:26:38,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:38,236 INFO L225 Difference]: With dead ends: 625 [2021-11-12 23:26:38,236 INFO L226 Difference]: Without dead ends: 474 [2021-11-12 23:26:38,236 INFO L932 BasicCegarLoop]: 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 [2021-11-12 23:26:38,236 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 76 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.46ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.71ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:38,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 392 Invalid, 32 Unknown, 0 Unchecked, 0.46ms Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 32.71ms Time] [2021-11-12 23:26:38,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2021-11-12 23:26:39,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 460. [2021-11-12 23:26:39,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 459 states have (on average 1.2505446623093681) internal successors, (574), 459 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:39,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 574 transitions. [2021-11-12 23:26:39,028 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 574 transitions. Word has length 142 [2021-11-12 23:26:39,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:39,028 INFO L470 AbstractCegarLoop]: Abstraction has 460 states and 574 transitions. [2021-11-12 23:26:39,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:39,028 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 574 transitions. [2021-11-12 23:26:39,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-12 23:26:39,029 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:39,029 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:26:39,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-11-12 23:26:39,029 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:26:39,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:39,029 INFO L85 PathProgramCache]: Analyzing trace with hash 529206757, now seen corresponding path program 1 times [2021-11-12 23:26:39,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:26:39,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705708487] [2021-11-12 23:26:39,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:39,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:26:39,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:39,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:26:39,091 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:26:39,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705708487] [2021-11-12 23:26:39,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705708487] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:26:39,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:26:39,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 23:26:39,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6885143] [2021-11-12 23:26:39,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:39,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:26:39,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:26:39,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:26:39,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:26:39,093 INFO L87 Difference]: Start difference. First operand 460 states and 574 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:40,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:40,804 INFO L93 Difference]: Finished difference Result 1036 states and 1348 transitions. [2021-11-12 23:26:40,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:26:40,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2021-11-12 23:26:40,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:40,805 INFO L225 Difference]: With dead ends: 1036 [2021-11-12 23:26:40,805 INFO L226 Difference]: Without dead ends: 748 [2021-11-12 23:26:40,805 INFO L932 BasicCegarLoop]: 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 [2021-11-12 23:26:40,806 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 69 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.66ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.22ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:40,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 392 Invalid, 32 Unknown, 0 Unchecked, 0.66ms Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 38.22ms Time] [2021-11-12 23:26:40,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2021-11-12 23:26:42,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 722. [2021-11-12 23:26:42,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 721 states have (on average 1.2815533980582525) internal successors, (924), 721 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:42,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 924 transitions. [2021-11-12 23:26:42,285 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 924 transitions. Word has length 145 [2021-11-12 23:26:42,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:42,285 INFO L470 AbstractCegarLoop]: Abstraction has 722 states and 924 transitions. [2021-11-12 23:26:42,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:42,286 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 924 transitions. [2021-11-12 23:26:42,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-12 23:26:42,286 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:42,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:26:42,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-11-12 23:26:42,286 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:26:42,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:42,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1168374263, now seen corresponding path program 1 times [2021-11-12 23:26:42,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:26:42,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145266533] [2021-11-12 23:26:42,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:42,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:26:42,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:42,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:26:42,342 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:26:42,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145266533] [2021-11-12 23:26:42,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145266533] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:26:42,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:26:42,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 23:26:42,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536630553] [2021-11-12 23:26:42,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:42,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:26:42,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:26:42,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:26:42,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:26:42,344 INFO L87 Difference]: Start difference. First operand 722 states and 924 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:45,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:45,362 INFO L93 Difference]: Finished difference Result 1822 states and 2398 transitions. [2021-11-12 23:26:45,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:26:45,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 148 [2021-11-12 23:26:45,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:45,364 INFO L225 Difference]: With dead ends: 1822 [2021-11-12 23:26:45,364 INFO L226 Difference]: Without dead ends: 1272 [2021-11-12 23:26:45,364 INFO L932 BasicCegarLoop]: 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 [2021-11-12 23:26:45,364 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 62 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.57ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.20ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:45,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 392 Invalid, 32 Unknown, 0 Unchecked, 0.57ms Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 36.20ms Time] [2021-11-12 23:26:45,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2021-11-12 23:26:48,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1222. [2021-11-12 23:26:48,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 1221 states have (on average 1.3005733005733007) internal successors, (1588), 1221 states have internal predecessors, (1588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:48,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1588 transitions. [2021-11-12 23:26:48,186 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1588 transitions. Word has length 148 [2021-11-12 23:26:48,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:48,186 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 1588 transitions. [2021-11-12 23:26:48,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:48,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1588 transitions. [2021-11-12 23:26:48,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-12 23:26:48,187 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:48,187 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:26:48,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-11-12 23:26:48,187 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:26:48,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:48,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1220875874, now seen corresponding path program 1 times [2021-11-12 23:26:48,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:26:48,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674029809] [2021-11-12 23:26:48,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:48,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:26:48,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:48,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:26:48,235 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:26:48,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674029809] [2021-11-12 23:26:48,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674029809] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:26:48,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:26:48,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 23:26:48,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834888063] [2021-11-12 23:26:48,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:48,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:26:48,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:26:48,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:26:48,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:26:48,236 INFO L87 Difference]: Start difference. First operand 1222 states and 1588 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:53,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:53,843 INFO L93 Difference]: Finished difference Result 3322 states and 4390 transitions. [2021-11-12 23:26:53,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:26:53,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 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 151 [2021-11-12 23:26:53,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:53,846 INFO L225 Difference]: With dead ends: 3322 [2021-11-12 23:26:53,846 INFO L226 Difference]: Without dead ends: 2272 [2021-11-12 23:26:53,847 INFO L932 BasicCegarLoop]: 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 [2021-11-12 23:26:53,847 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 55 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.44ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.01ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:53,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 392 Invalid, 32 Unknown, 0 Unchecked, 0.44ms Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 33.01ms Time] [2021-11-12 23:26:53,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2021-11-12 23:26:59,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 2174. [2021-11-12 23:26:59,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2174 states, 2173 states have (on average 1.3087896916705015) internal successors, (2844), 2173 states have internal predecessors, (2844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:59,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2174 states to 2174 states and 2844 transitions. [2021-11-12 23:26:59,391 INFO L78 Accepts]: Start accepts. Automaton has 2174 states and 2844 transitions. Word has length 151 [2021-11-12 23:26:59,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:59,391 INFO L470 AbstractCegarLoop]: Abstraction has 2174 states and 2844 transitions. [2021-11-12 23:26:59,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:26:59,391 INFO L276 IsEmpty]: Start isEmpty. Operand 2174 states and 2844 transitions. [2021-11-12 23:26:59,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-12 23:26:59,392 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:59,392 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:26:59,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-11-12 23:26:59,392 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:26:59,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:59,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1510968446, now seen corresponding path program 1 times [2021-11-12 23:26:59,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:26:59,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292912291] [2021-11-12 23:26:59,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:59,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:26:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:59,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:26:59,452 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:26:59,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292912291] [2021-11-12 23:26:59,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292912291] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:26:59,452 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:26:59,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 23:26:59,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003396762] [2021-11-12 23:26:59,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:59,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:26:59,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:26:59,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:26:59,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:26:59,454 INFO L87 Difference]: Start difference. First operand 2174 states and 2844 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:27:10,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:27:10,329 INFO L93 Difference]: Finished difference Result 6178 states and 8158 transitions. [2021-11-12 23:27:10,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:27:10,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154 [2021-11-12 23:27:10,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:27:10,333 INFO L225 Difference]: With dead ends: 6178 [2021-11-12 23:27:10,334 INFO L226 Difference]: Without dead ends: 4176 [2021-11-12 23:27:10,335 INFO L932 BasicCegarLoop]: 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 [2021-11-12 23:27:10,335 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 48 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.57ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.94ms IncrementalHoareTripleChecker+Time [2021-11-12 23:27:10,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 392 Invalid, 32 Unknown, 0 Unchecked, 0.57ms Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 37.94ms Time] [2021-11-12 23:27:10,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4176 states. [2021-11-12 23:27:21,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4176 to 3982. [2021-11-12 23:27:21,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3982 states, 3981 states have (on average 1.3092187892489324) internal successors, (5212), 3981 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:27:21,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3982 states to 3982 states and 5212 transitions. [2021-11-12 23:27:21,444 INFO L78 Accepts]: Start accepts. Automaton has 3982 states and 5212 transitions. Word has length 154 [2021-11-12 23:27:21,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:27:21,444 INFO L470 AbstractCegarLoop]: Abstraction has 3982 states and 5212 transitions. [2021-11-12 23:27:21,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:27:21,444 INFO L276 IsEmpty]: Start isEmpty. Operand 3982 states and 5212 transitions. [2021-11-12 23:27:21,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-12 23:27:21,445 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:27:21,445 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:27:21,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-11-12 23:27:21,446 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:27:21,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:27:21,446 INFO L85 PathProgramCache]: Analyzing trace with hash 59275489, now seen corresponding path program 1 times [2021-11-12 23:27:21,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:27:21,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685855680] [2021-11-12 23:27:21,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:27:21,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:27:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:27:21,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:27:21,492 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:27:21,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685855680] [2021-11-12 23:27:21,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685855680] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:27:21,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:27:21,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 23:27:21,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892549846] [2021-11-12 23:27:21,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:27:21,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:27:21,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:27:21,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:27:21,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:27:21,494 INFO L87 Difference]: Start difference. First operand 3982 states and 5212 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:27:44,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:27:44,514 INFO L93 Difference]: Finished difference Result 11602 states and 15262 transitions. [2021-11-12 23:27:44,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:27:44,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2021-11-12 23:27:44,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:27:44,523 INFO L225 Difference]: With dead ends: 11602 [2021-11-12 23:27:44,523 INFO L226 Difference]: Without dead ends: 7792 [2021-11-12 23:27:44,526 INFO L932 BasicCegarLoop]: 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 [2021-11-12 23:27:44,527 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 38 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.63ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.08ms IncrementalHoareTripleChecker+Time [2021-11-12 23:27:44,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 392 Invalid, 33 Unknown, 0 Unchecked, 0.63ms Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 35.08ms Time] [2021-11-12 23:27:44,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7792 states. [2021-11-12 23:28:06,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7792 to 7406. [2021-11-12 23:28:06,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7406 states, 7405 states have (on average 1.3045239702903444) internal successors, (9660), 7405 states have internal predecessors, (9660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:28:06,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7406 states to 7406 states and 9660 transitions. [2021-11-12 23:28:06,681 INFO L78 Accepts]: Start accepts. Automaton has 7406 states and 9660 transitions. Word has length 157 [2021-11-12 23:28:06,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:28:06,682 INFO L470 AbstractCegarLoop]: Abstraction has 7406 states and 9660 transitions. [2021-11-12 23:28:06,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:28:06,682 INFO L276 IsEmpty]: Start isEmpty. Operand 7406 states and 9660 transitions. [2021-11-12 23:28:06,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-11-12 23:28:06,682 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:28:06,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:28:06,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-11-12 23:28:06,683 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:28:06,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:28:06,683 INFO L85 PathProgramCache]: Analyzing trace with hash -79513788, now seen corresponding path program 1 times [2021-11-12 23:28:06,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:28:06,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357402133] [2021-11-12 23:28:06,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:28:06,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:28:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:28:06,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:28:06,767 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:28:06,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357402133] [2021-11-12 23:28:06,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357402133] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:28:06,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:28:06,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-12 23:28:06,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365336710] [2021-11-12 23:28:06,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:28:06,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 23:28:06,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:28:06,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 23:28:06,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:28:06,769 INFO L87 Difference]: Start difference. First operand 7406 states and 9660 transitions. Second operand has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:29:16,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:29:16,952 INFO L93 Difference]: Finished difference Result 29917 states and 39321 transitions. [2021-11-12 23:29:16,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:29:16,952 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 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 160 [2021-11-12 23:29:16,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:29:16,985 INFO L225 Difference]: With dead ends: 29917 [2021-11-12 23:29:16,985 INFO L226 Difference]: Without dead ends: 22683 [2021-11-12 23:29:16,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:29:16,994 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 1559 mSDsluCounter, 3024 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 226.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1559 SdHoareTripleChecker+Valid, 3158 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.16ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 278.35ms IncrementalHoareTripleChecker+Time [2021-11-12 23:29:16,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1559 Valid, 3158 Invalid, 496 Unknown, 0 Unchecked, 8.16ms Time], IncrementalHoareTripleChecker [12 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 278.35ms Time] [2021-11-12 23:29:17,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22683 states. [2021-11-12 23:29:53,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22683 to 10088. [2021-11-12 23:29:53,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10088 states, 10087 states have (on average 1.2996926737384753) internal successors, (13110), 10087 states have internal predecessors, (13110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:29:53,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10088 states to 10088 states and 13110 transitions. [2021-11-12 23:29:53,314 INFO L78 Accepts]: Start accepts. Automaton has 10088 states and 13110 transitions. Word has length 160 [2021-11-12 23:29:53,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:29:53,314 INFO L470 AbstractCegarLoop]: Abstraction has 10088 states and 13110 transitions. [2021-11-12 23:29:53,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:29:53,314 INFO L276 IsEmpty]: Start isEmpty. Operand 10088 states and 13110 transitions. [2021-11-12 23:29:53,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-12 23:29:53,315 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:29:53,315 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:29:53,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-11-12 23:29:53,315 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:29:53,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:29:53,315 INFO L85 PathProgramCache]: Analyzing trace with hash 462937350, now seen corresponding path program 1 times [2021-11-12 23:29:53,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:29:53,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599405217] [2021-11-12 23:29:53,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:29:53,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:29:53,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:29:53,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:29:53,586 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:29:53,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599405217] [2021-11-12 23:29:53,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599405217] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:29:53,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:29:53,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-12 23:29:53,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828406200] [2021-11-12 23:29:53,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:29:53,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 23:29:53,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:29:53,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 23:29:53,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:29:53,588 INFO L87 Difference]: Start difference. First operand 10088 states and 13110 transitions. Second operand has 9 states, 9 states have (on average 18.0) internal successors, (162), 9 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:30:28,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:30:28,955 INFO L93 Difference]: Finished difference Result 20006 states and 26034 transitions. [2021-11-12 23:30:28,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 23:30:28,956 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.0) internal successors, (162), 9 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2021-11-12 23:30:28,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:30:28,969 INFO L225 Difference]: With dead ends: 20006 [2021-11-12 23:30:28,969 INFO L226 Difference]: Without dead ends: 10090 [2021-11-12 23:30:28,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2021-11-12 23:30:28,977 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 920 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 125.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.87ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 143.78ms IncrementalHoareTripleChecker+Time [2021-11-12 23:30:28,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [920 Valid, 611 Invalid, 157 Unknown, 0 Unchecked, 1.87ms Time], IncrementalHoareTripleChecker [2 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 143.78ms Time] [2021-11-12 23:30:28,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10090 states. [2021-11-12 23:31:03,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10090 to 10088. [2021-11-12 23:31:03,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10088 states, 10087 states have (on average 1.29949439873104) internal successors, (13108), 10087 states have internal predecessors, (13108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:31:03,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10088 states to 10088 states and 13108 transitions. [2021-11-12 23:31:03,021 INFO L78 Accepts]: Start accepts. Automaton has 10088 states and 13108 transitions. Word has length 162 [2021-11-12 23:31:03,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:31:03,021 INFO L470 AbstractCegarLoop]: Abstraction has 10088 states and 13108 transitions. [2021-11-12 23:31:03,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.0) internal successors, (162), 9 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:31:03,022 INFO L276 IsEmpty]: Start isEmpty. Operand 10088 states and 13108 transitions. [2021-11-12 23:31:03,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-12 23:31:03,022 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:31:03,022 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:31:03,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-11-12 23:31:03,022 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2021-11-12 23:31:03,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:31:03,023 INFO L85 PathProgramCache]: Analyzing trace with hash -681570940, now seen corresponding path program 1 times [2021-11-12 23:31:03,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:31:03,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143735587] [2021-11-12 23:31:03,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:31:03,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:31:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:31:03,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:31:03,069 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:31:03,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143735587] [2021-11-12 23:31:03,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143735587] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:31:03,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:31:03,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 23:31:03,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218225176] [2021-11-12 23:31:03,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:31:03,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 23:31:03,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:31:03,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 23:31:03,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 23:31:03,071 INFO L87 Difference]: Start difference. First operand 10088 states and 13108 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:31:44,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:31:44,537 INFO L93 Difference]: Finished difference Result 22630 states and 29486 transitions. [2021-11-12 23:31:44,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:31:44,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2021-11-12 23:31:44,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:31:44,557 INFO L225 Difference]: With dead ends: 22630 [2021-11-12 23:31:44,557 INFO L226 Difference]: Without dead ends: 12714 [2021-11-12 23:31:44,564 INFO L932 BasicCegarLoop]: 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 [2021-11-12 23:31:44,565 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 109 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.67ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.17ms IncrementalHoareTripleChecker+Time [2021-11-12 23:31:44,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 302 Invalid, 33 Unknown, 0 Unchecked, 0.67ms Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 39.17ms Time] [2021-11-12 23:31:44,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12714 states.