./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/bin/utaipan-g80aRyZoba --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 6c698c3a474f0bb431ef6e81ac39d288198716f9950dc2b1ea90a04cccf08b06 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:44:18,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:44:18,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:44:18,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:44:18,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:44:18,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:44:18,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:44:18,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:44:18,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:44:18,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:44:18,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:44:18,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:44:18,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:44:18,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:44:18,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:44:18,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:44:18,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:44:18,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:44:18,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:44:18,353 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:44:18,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:44:18,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:44:18,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:44:18,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:44:18,361 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:44:18,361 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:44:18,362 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:44:18,363 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:44:18,363 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:44:18,364 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:44:18,365 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:44:18,366 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:44:18,366 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:44:18,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:44:18,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:44:18,368 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:44:18,369 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:44:18,370 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:44:18,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:44:18,371 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:44:18,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:44:18,373 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 01:44:18,396 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:44:18,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:44:18,396 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:44:18,397 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:44:18,398 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:44:18,398 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:44:18,398 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:44:18,399 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:44:18,399 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:44:18,399 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:44:18,400 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:44:18,400 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:44:18,400 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:44:18,400 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:44:18,401 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:44:18,401 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:44:18,401 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:44:18,402 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:44:18,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:44:18,403 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:44:18,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:44:18,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:44:18,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:44:18,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:44:18,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:44:18,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:44:18,405 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:44:18,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:44:18,406 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:44:18,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:44:18,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:44:18,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:44:18,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:44:18,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:44:18,408 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:44:18,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:44:18,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:44:18,409 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:44:18,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:44:18,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:44:18,410 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:44:18,410 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c698c3a474f0bb431ef6e81ac39d288198716f9950dc2b1ea90a04cccf08b06 [2022-11-22 01:44:18,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:44:18,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:44:18,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:44:18,711 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:44:18,714 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:44:18,716 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c [2022-11-22 01:44:21,906 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:44:22,575 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:44:22,575 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c [2022-11-22 01:44:22,618 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/bin/utaipan-g80aRyZoba/data/d1caa79ff/7d4f0eb712be454d807e6a92fb176c27/FLAG01a882c9f [2022-11-22 01:44:22,639 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/bin/utaipan-g80aRyZoba/data/d1caa79ff/7d4f0eb712be454d807e6a92fb176c27 [2022-11-22 01:44:22,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:44:22,646 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:44:22,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:44:22,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:44:22,652 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:44:22,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:44:22" (1/1) ... [2022-11-22 01:44:22,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4efe39c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:22, skipping insertion in model container [2022-11-22 01:44:22,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:44:22" (1/1) ... [2022-11-22 01:44:22,662 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:44:22,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:44:23,612 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[17604,17617] [2022-11-22 01:44:23,674 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[22921,22934] [2022-11-22 01:44:23,699 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[24278,24291] [2022-11-22 01:44:23,714 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[25086,25099] [2022-11-22 01:44:23,745 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[26814,26827] [2022-11-22 01:44:23,758 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[27622,27635] [2022-11-22 01:44:23,775 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[28801,28814] [2022-11-22 01:44:23,793 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[31541,31554] [2022-11-22 01:44:23,802 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[32352,32365] [2022-11-22 01:44:23,811 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[33534,33547] [2022-11-22 01:44:23,827 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[35725,35738] [2022-11-22 01:44:23,856 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[39985,39998] [2022-11-22 01:44:23,863 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[40796,40809] [2022-11-22 01:44:23,874 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[41978,41991] [2022-11-22 01:44:23,891 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[44169,44182] [2022-11-22 01:44:23,919 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[47880,47893] [2022-11-22 01:44:23,966 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[54627,54640] [2022-11-22 01:44:23,974 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[55438,55451] [2022-11-22 01:44:23,983 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[56581,56594] [2022-11-22 01:44:24,004 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[58733,58746] [2022-11-22 01:44:24,047 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[62650,62663] [2022-11-22 01:44:24,118 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[69599,69612] [2022-11-22 01:44:24,205 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[82335,82348] [2022-11-22 01:44:24,212 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[83146,83159] [2022-11-22 01:44:24,221 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[84328,84341] [2022-11-22 01:44:24,237 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[86519,86532] [2022-11-22 01:44:24,272 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[90230,90243] [2022-11-22 01:44:24,315 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[96428,96441] [2022-11-22 01:44:24,369 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[107019,107032] [2022-11-22 01:44:25,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:44:25,292 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:44:25,416 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[17604,17617] [2022-11-22 01:44:25,436 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[22921,22934] [2022-11-22 01:44:25,444 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[24278,24291] [2022-11-22 01:44:25,450 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[25086,25099] [2022-11-22 01:44:25,459 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[26814,26827] [2022-11-22 01:44:25,464 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[27622,27635] [2022-11-22 01:44:25,475 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[28801,28814] [2022-11-22 01:44:25,488 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[31541,31554] [2022-11-22 01:44:25,494 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[32352,32365] [2022-11-22 01:44:25,501 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[33534,33547] [2022-11-22 01:44:25,512 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[35725,35738] [2022-11-22 01:44:25,532 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[39985,39998] [2022-11-22 01:44:25,538 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[40796,40809] [2022-11-22 01:44:25,544 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[41978,41991] [2022-11-22 01:44:25,556 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[44169,44182] [2022-11-22 01:44:25,573 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[47880,47893] [2022-11-22 01:44:25,603 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[54627,54640] [2022-11-22 01:44:25,609 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[55438,55451] [2022-11-22 01:44:25,616 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[56581,56594] [2022-11-22 01:44:25,627 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[58733,58746] [2022-11-22 01:44:25,646 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[62650,62663] [2022-11-22 01:44:25,678 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[69599,69612] [2022-11-22 01:44:25,735 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[82335,82348] [2022-11-22 01:44:25,741 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[83146,83159] [2022-11-22 01:44:25,748 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[84328,84341] [2022-11-22 01:44:25,761 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[86519,86532] [2022-11-22 01:44:25,782 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[90230,90243] [2022-11-22 01:44:25,812 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[96428,96441] [2022-11-22 01:44:25,854 WARN L237 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_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c[107019,107032] [2022-11-22 01:44:26,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:44:26,653 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:44:26,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:26 WrapperNode [2022-11-22 01:44:26,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:44:26,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:44:26,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:44:26,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:44:26,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:26" (1/1) ... [2022-11-22 01:44:26,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:26" (1/1) ... [2022-11-22 01:44:26,980 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12603 [2022-11-22 01:44:26,981 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:44:26,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:44:26,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:44:26,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:44:26,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:26" (1/1) ... [2022-11-22 01:44:26,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:26" (1/1) ... [2022-11-22 01:44:27,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:26" (1/1) ... [2022-11-22 01:44:27,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:26" (1/1) ... [2022-11-22 01:44:27,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:26" (1/1) ... [2022-11-22 01:44:27,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:26" (1/1) ... [2022-11-22 01:44:27,144 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:26" (1/1) ... [2022-11-22 01:44:27,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:26" (1/1) ... [2022-11-22 01:44:27,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:44:27,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:44:27,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:44:27,195 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:44:27,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:26" (1/1) ... [2022-11-22 01:44:27,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:44:27,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:44:27,237 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:44:27,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4289e047-6ad5-4e9d-8a6c-31961ea5a76c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:44:27,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:44:27,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:44:27,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:44:27,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:44:27,854 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:44:27,856 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:44:33,539 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:44:34,187 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:44:34,188 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:44:34,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:44:34 BoogieIcfgContainer [2022-11-22 01:44:34,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:44:34,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:44:34,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:44:34,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:44:34,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:44:22" (1/3) ... [2022-11-22 01:44:34,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a4a335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:44:34, skipping insertion in model container [2022-11-22 01:44:34,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:26" (2/3) ... [2022-11-22 01:44:34,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a4a335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:44:34, skipping insertion in model container [2022-11-22 01:44:34,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:44:34" (3/3) ... [2022-11-22 01:44:34,211 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.BOUNDED-14.pals.c.v+lhb-reducer.c [2022-11-22 01:44:34,230 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:44:34,231 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2022-11-22 01:44:34,340 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:44:34,349 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@19789dbe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:44:34,350 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-11-22 01:44:34,363 INFO L276 IsEmpty]: Start isEmpty. Operand has 2002 states, 1972 states have (on average 1.8671399594320486) internal successors, (3682), 2001 states have internal predecessors, (3682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:44:34,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-22 01:44:34,399 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:44:34,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:44:34,401 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:44:34,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:44:34,408 INFO L85 PathProgramCache]: Analyzing trace with hash -393314146, now seen corresponding path program 1 times [2022-11-22 01:44:34,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:44:34,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494354172] [2022-11-22 01:44:34,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:44:34,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:44:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:44:35,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:44:35,172 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:44:35,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494354172] [2022-11-22 01:44:35,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494354172] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:44:35,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:44:35,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:44:35,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713805465] [2022-11-22 01:44:35,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:44:35,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:44:35,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:44:35,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:44:35,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:44:35,230 INFO L87 Difference]: Start difference. First operand has 2002 states, 1972 states have (on average 1.8671399594320486) internal successors, (3682), 2001 states have internal predecessors, (3682), 0 states have call successors, (0), 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 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) [2022-11-22 01:44:36,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:44:36,733 INFO L93 Difference]: Finished difference Result 2934 states and 5219 transitions. [2022-11-22 01:44:36,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:44:36,737 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 [2022-11-22 01:44:36,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:44:36,768 INFO L225 Difference]: With dead ends: 2934 [2022-11-22 01:44:36,769 INFO L226 Difference]: Without dead ends: 1500 [2022-11-22 01:44:36,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:44:36,783 INFO L413 NwaCegarLoop]: 1755 mSDtfsCounter, 7837 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7837 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:44:36,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7837 Valid, 1795 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 01:44:36,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2022-11-22 01:44:36,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1500. [2022-11-22 01:44:36,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1471 states have (on average 1.3038749150237934) internal successors, (1918), 1499 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:44:36,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 1918 transitions. [2022-11-22 01:44:36,978 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 1918 transitions. Word has length 100 [2022-11-22 01:44:36,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:44:36,979 INFO L495 AbstractCegarLoop]: Abstraction has 1500 states and 1918 transitions. [2022-11-22 01:44:36,979 INFO L496 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) [2022-11-22 01:44:36,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 1918 transitions. [2022-11-22 01:44:36,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-22 01:44:36,986 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:44:36,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:44:36,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:44:36,987 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:44:36,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:44:36,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1603541041, now seen corresponding path program 1 times [2022-11-22 01:44:36,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:44:36,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133181142] [2022-11-22 01:44:36,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:44:36,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:44:37,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:44:37,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:44:37,302 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:44:37,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133181142] [2022-11-22 01:44:37,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133181142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:44:37,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:44:37,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:44:37,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098169620] [2022-11-22 01:44:37,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:44:37,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:44:37,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:44:37,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:44:37,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:44:37,305 INFO L87 Difference]: Start difference. First operand 1500 states and 1918 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) [2022-11-22 01:44:38,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:44:38,556 INFO L93 Difference]: Finished difference Result 2426 states and 3199 transitions. [2022-11-22 01:44:38,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:44:38,556 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 [2022-11-22 01:44:38,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:44:38,561 INFO L225 Difference]: With dead ends: 2426 [2022-11-22 01:44:38,562 INFO L226 Difference]: Without dead ends: 1292 [2022-11-22 01:44:38,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:44:38,565 INFO L413 NwaCegarLoop]: 839 mSDtfsCounter, 4887 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4887 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:44:38,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4887 Valid, 883 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 01:44:38,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2022-11-22 01:44:38,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1292. [2022-11-22 01:44:38,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1292 states, 1263 states have (on average 1.327790973871734) internal successors, (1677), 1291 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:44:38,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1677 transitions. [2022-11-22 01:44:38,631 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 1677 transitions. Word has length 101 [2022-11-22 01:44:38,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:44:38,634 INFO L495 AbstractCegarLoop]: Abstraction has 1292 states and 1677 transitions. [2022-11-22 01:44:38,634 INFO L496 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) [2022-11-22 01:44:38,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 1677 transitions. [2022-11-22 01:44:38,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-22 01:44:38,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:44:38,639 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:44:38,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:44:38,640 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:44:38,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:44:38,650 INFO L85 PathProgramCache]: Analyzing trace with hash -589929397, now seen corresponding path program 1 times [2022-11-22 01:44:38,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:44:38,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678540597] [2022-11-22 01:44:38,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:44:38,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:44:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:44:38,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:44:38,939 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:44:38,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678540597] [2022-11-22 01:44:38,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678540597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:44:38,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:44:38,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:44:38,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310565214] [2022-11-22 01:44:38,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:44:38,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:44:38,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:44:38,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:44:38,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:44:38,942 INFO L87 Difference]: Start difference. First operand 1292 states and 1677 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) [2022-11-22 01:44:40,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:44:40,009 INFO L93 Difference]: Finished difference Result 2218 states and 2957 transitions. [2022-11-22 01:44:40,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:44:40,009 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 [2022-11-22 01:44:40,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:44:40,014 INFO L225 Difference]: With dead ends: 2218 [2022-11-22 01:44:40,014 INFO L226 Difference]: Without dead ends: 1152 [2022-11-22 01:44:40,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:44:40,025 INFO L413 NwaCegarLoop]: 812 mSDtfsCounter, 4460 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4460 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:44:40,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4460 Valid, 840 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 01:44:40,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2022-11-22 01:44:40,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1152. [2022-11-22 01:44:40,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 1123 states have (on average 1.3535173642030276) internal successors, (1520), 1151 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:44:40,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1520 transitions. [2022-11-22 01:44:40,102 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1520 transitions. Word has length 102 [2022-11-22 01:44:40,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:44:40,104 INFO L495 AbstractCegarLoop]: Abstraction has 1152 states and 1520 transitions. [2022-11-22 01:44:40,105 INFO L496 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) [2022-11-22 01:44:40,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1520 transitions. [2022-11-22 01:44:40,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-22 01:44:40,115 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:44:40,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:44:40,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:44:40,116 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:44:40,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:44:40,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1121130778, now seen corresponding path program 1 times [2022-11-22 01:44:40,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:44:40,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092987418] [2022-11-22 01:44:40,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:44:40,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:44:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:44:40,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:44:40,366 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:44:40,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092987418] [2022-11-22 01:44:40,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092987418] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:44:40,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:44:40,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:44:40,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147498956] [2022-11-22 01:44:40,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:44:40,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:44:40,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:44:40,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:44:40,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:44:40,369 INFO L87 Difference]: Start difference. First operand 1152 states and 1520 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) [2022-11-22 01:44:41,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:44:41,550 INFO L93 Difference]: Finished difference Result 2078 states and 2799 transitions. [2022-11-22 01:44:41,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:44:41,551 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 [2022-11-22 01:44:41,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:44:41,555 INFO L225 Difference]: With dead ends: 2078 [2022-11-22 01:44:41,555 INFO L226 Difference]: Without dead ends: 1112 [2022-11-22 01:44:41,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:44:41,557 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 4226 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4226 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:44:41,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4226 Valid, 672 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 853 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 01:44:41,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-11-22 01:44:41,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 1112. [2022-11-22 01:44:41,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1083 states have (on average 1.358264081255771) internal successors, (1471), 1111 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:44:41,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1471 transitions. [2022-11-22 01:44:41,624 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1471 transitions. Word has length 103 [2022-11-22 01:44:41,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:44:41,624 INFO L495 AbstractCegarLoop]: Abstraction has 1112 states and 1471 transitions. [2022-11-22 01:44:41,624 INFO L496 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) [2022-11-22 01:44:41,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1471 transitions. [2022-11-22 01:44:41,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-22 01:44:41,627 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:44:41,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:44:41,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:44:41,628 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:44:41,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:44:41,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1195809120, now seen corresponding path program 1 times [2022-11-22 01:44:41,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:44:41,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768458061] [2022-11-22 01:44:41,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:44:41,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:44:41,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:44:41,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:44:41,933 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:44:41,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768458061] [2022-11-22 01:44:41,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768458061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:44:41,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:44:41,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:44:41,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983882331] [2022-11-22 01:44:41,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:44:41,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:44:41,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:44:41,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:44:41,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:44:41,936 INFO L87 Difference]: Start difference. First operand 1112 states and 1471 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) [2022-11-22 01:44:42,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:44:42,877 INFO L93 Difference]: Finished difference Result 2038 states and 2749 transitions. [2022-11-22 01:44:42,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:44:42,877 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 [2022-11-22 01:44:42,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:44:42,881 INFO L225 Difference]: With dead ends: 2038 [2022-11-22 01:44:42,881 INFO L226 Difference]: Without dead ends: 1050 [2022-11-22 01:44:42,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:44:42,885 INFO L413 NwaCegarLoop]: 756 mSDtfsCounter, 4139 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4139 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:44:42,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4139 Valid, 768 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:44:42,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2022-11-22 01:44:42,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 1050. [2022-11-22 01:44:42,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1021 states have (on average 1.3751224289911852) internal successors, (1404), 1049 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:44:42,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1404 transitions. [2022-11-22 01:44:42,961 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1404 transitions. Word has length 104 [2022-11-22 01:44:42,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:44:42,961 INFO L495 AbstractCegarLoop]: Abstraction has 1050 states and 1404 transitions. [2022-11-22 01:44:42,962 INFO L496 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) [2022-11-22 01:44:42,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1404 transitions. [2022-11-22 01:44:42,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-22 01:44:42,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:44:42,965 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:44:42,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:44:42,965 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:44:42,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:44:42,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1648824411, now seen corresponding path program 1 times [2022-11-22 01:44:42,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:44:42,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256766013] [2022-11-22 01:44:42,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:44:42,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:44:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:44:43,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:44:43,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:44:43,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256766013] [2022-11-22 01:44:43,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256766013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:44:43,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:44:43,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:44:43,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276639258] [2022-11-22 01:44:43,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:44:43,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:44:43,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:44:43,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:44:43,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:44:43,189 INFO L87 Difference]: Start difference. First operand 1050 states and 1404 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) [2022-11-22 01:44:44,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:44:44,670 INFO L93 Difference]: Finished difference Result 2524 states and 3420 transitions. [2022-11-22 01:44:44,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:44:44,671 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 [2022-11-22 01:44:44,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:44:44,677 INFO L225 Difference]: With dead ends: 2524 [2022-11-22 01:44:44,677 INFO L226 Difference]: Without dead ends: 1564 [2022-11-22 01:44:44,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:44:44,681 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 5432 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5432 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:44:44,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5432 Valid, 1165 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 01:44:44,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2022-11-22 01:44:44,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1462. [2022-11-22 01:44:44,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1433 states have (on average 1.4117236566643405) internal successors, (2023), 1461 states have internal predecessors, (2023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:44:44,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 2023 transitions. [2022-11-22 01:44:44,859 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 2023 transitions. Word has length 105 [2022-11-22 01:44:44,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:44:44,859 INFO L495 AbstractCegarLoop]: Abstraction has 1462 states and 2023 transitions. [2022-11-22 01:44:44,860 INFO L496 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) [2022-11-22 01:44:44,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 2023 transitions. [2022-11-22 01:44:44,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-22 01:44:44,864 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:44:44,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:44:44,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:44:44,864 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:44:44,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:44:44,865 INFO L85 PathProgramCache]: Analyzing trace with hash -396664639, now seen corresponding path program 1 times [2022-11-22 01:44:44,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:44:44,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545886531] [2022-11-22 01:44:44,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:44:44,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:44:44,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:44:45,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:44:45,085 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:44:45,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545886531] [2022-11-22 01:44:45,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545886531] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:44:45,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:44:45,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:44:45,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75254359] [2022-11-22 01:44:45,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:44:45,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:44:45,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:44:45,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:44:45,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:44:45,090 INFO L87 Difference]: Start difference. First operand 1462 states and 2023 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 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) [2022-11-22 01:44:46,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:44:46,103 INFO L93 Difference]: Finished difference Result 2834 states and 3955 transitions. [2022-11-22 01:44:46,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:44:46,105 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 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 [2022-11-22 01:44:46,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:44:46,111 INFO L225 Difference]: With dead ends: 2834 [2022-11-22 01:44:46,111 INFO L226 Difference]: Without dead ends: 1451 [2022-11-22 01:44:46,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:44:46,115 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 3944 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3944 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:44:46,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3944 Valid, 725 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:44:46,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2022-11-22 01:44:46,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1451. [2022-11-22 01:44:46,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1422 states have (on average 1.4127988748241913) internal successors, (2009), 1450 states have internal predecessors, (2009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:44:46,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 2009 transitions. [2022-11-22 01:44:46,277 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 2009 transitions. Word has length 106 [2022-11-22 01:44:46,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:44:46,277 INFO L495 AbstractCegarLoop]: Abstraction has 1451 states and 2009 transitions. [2022-11-22 01:44:46,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 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) [2022-11-22 01:44:46,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 2009 transitions. [2022-11-22 01:44:46,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-22 01:44:46,286 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:44:46,286 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:44:46,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:44:46,287 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:44:46,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:44:46,288 INFO L85 PathProgramCache]: Analyzing trace with hash 10049727, now seen corresponding path program 1 times [2022-11-22 01:44:46,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:44:46,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195551890] [2022-11-22 01:44:46,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:44:46,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:44:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:44:46,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:44:46,901 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:44:46,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195551890] [2022-11-22 01:44:46,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195551890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:44:46,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:44:46,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-22 01:44:46,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270563796] [2022-11-22 01:44:46,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:44:46,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 01:44:46,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:44:46,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 01:44:46,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:44:46,903 INFO L87 Difference]: Start difference. First operand 1451 states and 2009 transitions. Second operand has 10 states, 10 states have (on average 10.7) internal successors, (107), 9 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:44:49,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:44:49,868 INFO L93 Difference]: Finished difference Result 2667 states and 3660 transitions. [2022-11-22 01:44:49,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 01:44:49,869 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 9 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2022-11-22 01:44:49,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:44:49,877 INFO L225 Difference]: With dead ends: 2667 [2022-11-22 01:44:49,878 INFO L226 Difference]: Without dead ends: 2457 [2022-11-22 01:44:49,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2022-11-22 01:44:49,881 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 4077 mSDsluCounter, 3225 mSDsCounter, 0 mSdLazyCounter, 3632 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4077 SdHoareTripleChecker+Valid, 3999 SdHoareTripleChecker+Invalid, 3636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:44:49,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4077 Valid, 3999 Invalid, 3636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3632 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-22 01:44:49,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2457 states. [2022-11-22 01:44:50,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2457 to 1451. [2022-11-22 01:44:50,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1422 states have (on average 1.4113924050632911) internal successors, (2007), 1450 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:44:50,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 2007 transitions. [2022-11-22 01:44:50,055 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 2007 transitions. Word has length 107 [2022-11-22 01:44:50,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:44:50,056 INFO L495 AbstractCegarLoop]: Abstraction has 1451 states and 2007 transitions. [2022-11-22 01:44:50,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 9 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:44:50,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 2007 transitions. [2022-11-22 01:44:50,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-22 01:44:50,059 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:44:50,059 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:44:50,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:44:50,060 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:44:50,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:44:50,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1889558665, now seen corresponding path program 1 times [2022-11-22 01:44:50,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:44:50,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067828126] [2022-11-22 01:44:50,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:44:50,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:44:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:44:50,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:44:50,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:44:50,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067828126] [2022-11-22 01:44:50,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067828126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:44:50,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:44:50,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:44:50,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032113740] [2022-11-22 01:44:50,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:44:50,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:44:50,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:44:50,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:44:50,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:44:50,575 INFO L87 Difference]: Start difference. First operand 1451 states and 2007 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:44:52,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:44:52,489 INFO L93 Difference]: Finished difference Result 2459 states and 3253 transitions. [2022-11-22 01:44:52,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:44:52,489 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2022-11-22 01:44:52,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:44:52,496 INFO L225 Difference]: With dead ends: 2459 [2022-11-22 01:44:52,496 INFO L226 Difference]: Without dead ends: 1857 [2022-11-22 01:44:52,497 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:44:52,498 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 5870 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 1755 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5870 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 1756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:44:52,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5870 Valid, 1503 Invalid, 1756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1755 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-22 01:44:52,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1857 states. [2022-11-22 01:44:52,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1857 to 1451. [2022-11-22 01:44:52,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1422 states have (on average 1.410689170182841) internal successors, (2006), 1450 states have internal predecessors, (2006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:44:52,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 2006 transitions. [2022-11-22 01:44:52,689 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 2006 transitions. Word has length 107 [2022-11-22 01:44:52,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:44:52,689 INFO L495 AbstractCegarLoop]: Abstraction has 1451 states and 2006 transitions. [2022-11-22 01:44:52,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:44:52,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 2006 transitions. [2022-11-22 01:44:52,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-22 01:44:52,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:44:52,695 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:44:52,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 01:44:52,696 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:44:52,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:44:52,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1673844547, now seen corresponding path program 1 times [2022-11-22 01:44:52,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:44:52,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312396930] [2022-11-22 01:44:52,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:44:52,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:44:52,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:44:53,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:44:53,201 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:44:53,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312396930] [2022-11-22 01:44:53,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312396930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:44:53,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:44:53,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:44:53,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118693804] [2022-11-22 01:44:53,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:44:53,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:44:53,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:44:53,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:44:53,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:44:53,206 INFO L87 Difference]: Start difference. First operand 1451 states and 2006 transitions. Second operand has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:44:55,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:44:55,874 INFO L93 Difference]: Finished difference Result 2627 states and 3600 transitions. [2022-11-22 01:44:55,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:44:55,875 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2022-11-22 01:44:55,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:44:55,883 INFO L225 Difference]: With dead ends: 2627 [2022-11-22 01:44:55,884 INFO L226 Difference]: Without dead ends: 2465 [2022-11-22 01:44:55,885 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:44:55,886 INFO L413 NwaCegarLoop]: 786 mSDtfsCounter, 5901 mSDsluCounter, 2559 mSDsCounter, 0 mSdLazyCounter, 2996 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5901 SdHoareTripleChecker+Valid, 3345 SdHoareTripleChecker+Invalid, 3000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:44:55,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5901 Valid, 3345 Invalid, 3000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2996 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-22 01:44:55,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2022-11-22 01:44:56,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 1451. [2022-11-22 01:44:56,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1422 states have (on average 1.409985935302391) internal successors, (2005), 1450 states have internal predecessors, (2005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:44:56,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 2005 transitions. [2022-11-22 01:44:56,143 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 2005 transitions. Word has length 107 [2022-11-22 01:44:56,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:44:56,143 INFO L495 AbstractCegarLoop]: Abstraction has 1451 states and 2005 transitions. [2022-11-22 01:44:56,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:44:56,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 2005 transitions. [2022-11-22 01:44:56,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-22 01:44:56,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:44:56,147 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:44:56,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 01:44:56,147 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:44:56,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:44:56,148 INFO L85 PathProgramCache]: Analyzing trace with hash 124559761, now seen corresponding path program 1 times [2022-11-22 01:44:56,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:44:56,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843204283] [2022-11-22 01:44:56,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:44:56,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:44:56,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:44:56,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:44:56,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:44:56,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843204283] [2022-11-22 01:44:56,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843204283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:44:56,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:44:56,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:44:56,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983946138] [2022-11-22 01:44:56,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:44:56,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:44:56,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:44:56,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:44:56,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:44:56,586 INFO L87 Difference]: Start difference. First operand 1451 states and 2005 transitions. Second operand has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:44:58,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:44:58,927 INFO L93 Difference]: Finished difference Result 1881 states and 2583 transitions. [2022-11-22 01:44:58,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:44:58,927 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2022-11-22 01:44:58,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:44:58,933 INFO L225 Difference]: With dead ends: 1881 [2022-11-22 01:44:58,933 INFO L226 Difference]: Without dead ends: 1571 [2022-11-22 01:44:58,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:44:58,979 INFO L413 NwaCegarLoop]: 1039 mSDtfsCounter, 2053 mSDsluCounter, 3127 mSDsCounter, 0 mSdLazyCounter, 3013 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2053 SdHoareTripleChecker+Valid, 4166 SdHoareTripleChecker+Invalid, 3017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:44:58,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2053 Valid, 4166 Invalid, 3017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3013 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 01:44:58,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1571 states. [2022-11-22 01:44:59,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1571 to 1451. [2022-11-22 01:44:59,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1422 states have (on average 1.409282700421941) internal successors, (2004), 1450 states have internal predecessors, (2004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:44:59,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 2004 transitions. [2022-11-22 01:44:59,192 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 2004 transitions. Word has length 107 [2022-11-22 01:44:59,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:44:59,193 INFO L495 AbstractCegarLoop]: Abstraction has 1451 states and 2004 transitions. [2022-11-22 01:44:59,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:44:59,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 2004 transitions. [2022-11-22 01:44:59,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-22 01:44:59,196 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:44:59,196 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:44:59,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 01:44:59,197 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:44:59,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:44:59,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1528536076, now seen corresponding path program 1 times [2022-11-22 01:44:59,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:44:59,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421923308] [2022-11-22 01:44:59,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:44:59,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:44:59,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:44:59,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:44:59,673 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:44:59,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421923308] [2022-11-22 01:44:59,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421923308] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:44:59,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:44:59,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:44:59,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186438802] [2022-11-22 01:44:59,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:44:59,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:44:59,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:44:59,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:44:59,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:44:59,676 INFO L87 Difference]: Start difference. First operand 1451 states and 2004 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:02,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:45:02,730 INFO L93 Difference]: Finished difference Result 2622 states and 3590 transitions. [2022-11-22 01:45:02,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:45:02,730 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-11-22 01:45:02,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:45:02,738 INFO L225 Difference]: With dead ends: 2622 [2022-11-22 01:45:02,738 INFO L226 Difference]: Without dead ends: 2465 [2022-11-22 01:45:02,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:45:02,740 INFO L413 NwaCegarLoop]: 798 mSDtfsCounter, 4330 mSDsluCounter, 3452 mSDsCounter, 0 mSdLazyCounter, 3712 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4330 SdHoareTripleChecker+Valid, 4250 SdHoareTripleChecker+Invalid, 3716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:45:02,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4330 Valid, 4250 Invalid, 3716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3712 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-22 01:45:02,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2022-11-22 01:45:02,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 1451. [2022-11-22 01:45:02,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1422 states have (on average 1.408579465541491) internal successors, (2003), 1450 states have internal predecessors, (2003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:02,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 2003 transitions. [2022-11-22 01:45:02,928 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 2003 transitions. Word has length 109 [2022-11-22 01:45:02,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:02,928 INFO L495 AbstractCegarLoop]: Abstraction has 1451 states and 2003 transitions. [2022-11-22 01:45:02,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:02,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 2003 transitions. [2022-11-22 01:45:02,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-22 01:45:02,932 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:02,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:45:02,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 01:45:02,933 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:45:02,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:02,933 INFO L85 PathProgramCache]: Analyzing trace with hash -473795284, now seen corresponding path program 1 times [2022-11-22 01:45:02,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:45:02,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119876431] [2022-11-22 01:45:02,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:02,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:45:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:03,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:45:03,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:45:03,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119876431] [2022-11-22 01:45:03,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119876431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:45:03,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:45:03,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:45:03,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128632112] [2022-11-22 01:45:03,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:45:03,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:45:03,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:45:03,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:45:03,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:45:03,385 INFO L87 Difference]: Start difference. First operand 1451 states and 2003 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:06,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:45:06,074 INFO L93 Difference]: Finished difference Result 2641 states and 3610 transitions. [2022-11-22 01:45:06,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:45:06,075 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-11-22 01:45:06,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:45:06,080 INFO L225 Difference]: With dead ends: 2641 [2022-11-22 01:45:06,081 INFO L226 Difference]: Without dead ends: 2465 [2022-11-22 01:45:06,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 01:45:06,083 INFO L413 NwaCegarLoop]: 755 mSDtfsCounter, 4018 mSDsluCounter, 2469 mSDsCounter, 0 mSdLazyCounter, 2808 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4018 SdHoareTripleChecker+Valid, 3224 SdHoareTripleChecker+Invalid, 2814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:45:06,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4018 Valid, 3224 Invalid, 2814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2808 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 01:45:06,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2022-11-22 01:45:06,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 1451. [2022-11-22 01:45:06,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1422 states have (on average 1.4078762306610408) internal successors, (2002), 1450 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:06,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 2002 transitions. [2022-11-22 01:45:06,308 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 2002 transitions. Word has length 109 [2022-11-22 01:45:06,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:06,308 INFO L495 AbstractCegarLoop]: Abstraction has 1451 states and 2002 transitions. [2022-11-22 01:45:06,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:06,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 2002 transitions. [2022-11-22 01:45:06,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-22 01:45:06,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:06,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:45:06,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 01:45:06,312 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:45:06,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:06,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1405713654, now seen corresponding path program 1 times [2022-11-22 01:45:06,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:45:06,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326032886] [2022-11-22 01:45:06,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:06,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:45:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:06,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:45:06,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:45:06,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326032886] [2022-11-22 01:45:06,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326032886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:45:06,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:45:06,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:45:06,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657903579] [2022-11-22 01:45:06,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:45:06,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:45:06,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:45:06,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:45:06,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:45:06,733 INFO L87 Difference]: Start difference. First operand 1451 states and 2002 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:09,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:45:09,523 INFO L93 Difference]: Finished difference Result 2578 states and 3520 transitions. [2022-11-22 01:45:09,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:45:09,524 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-11-22 01:45:09,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:45:09,531 INFO L225 Difference]: With dead ends: 2578 [2022-11-22 01:45:09,531 INFO L226 Difference]: Without dead ends: 2441 [2022-11-22 01:45:09,532 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:45:09,533 INFO L413 NwaCegarLoop]: 935 mSDtfsCounter, 3377 mSDsluCounter, 3033 mSDsCounter, 0 mSdLazyCounter, 3508 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3377 SdHoareTripleChecker+Valid, 3968 SdHoareTripleChecker+Invalid, 3512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:45:09,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3377 Valid, 3968 Invalid, 3512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3508 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-22 01:45:09,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2441 states. [2022-11-22 01:45:09,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2441 to 1451. [2022-11-22 01:45:09,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1422 states have (on average 1.4071729957805907) internal successors, (2001), 1450 states have internal predecessors, (2001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:09,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 2001 transitions. [2022-11-22 01:45:09,739 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 2001 transitions. Word has length 109 [2022-11-22 01:45:09,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:09,740 INFO L495 AbstractCegarLoop]: Abstraction has 1451 states and 2001 transitions. [2022-11-22 01:45:09,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:09,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 2001 transitions. [2022-11-22 01:45:09,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-22 01:45:09,743 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:09,744 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:45:09,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-22 01:45:09,744 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:45:09,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:09,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1668784820, now seen corresponding path program 1 times [2022-11-22 01:45:09,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:45:09,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214175941] [2022-11-22 01:45:09,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:09,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:45:09,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:10,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:45:10,151 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:45:10,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214175941] [2022-11-22 01:45:10,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214175941] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:45:10,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:45:10,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:45:10,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084832417] [2022-11-22 01:45:10,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:45:10,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:45:10,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:45:10,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:45:10,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:45:10,153 INFO L87 Difference]: Start difference. First operand 1451 states and 2001 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:12,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:45:12,972 INFO L93 Difference]: Finished difference Result 2616 states and 3579 transitions. [2022-11-22 01:45:12,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:45:12,973 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-11-22 01:45:12,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:45:12,982 INFO L225 Difference]: With dead ends: 2616 [2022-11-22 01:45:12,982 INFO L226 Difference]: Without dead ends: 2465 [2022-11-22 01:45:12,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:45:12,984 INFO L413 NwaCegarLoop]: 782 mSDtfsCounter, 4380 mSDsluCounter, 3427 mSDsCounter, 0 mSdLazyCounter, 3668 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4380 SdHoareTripleChecker+Valid, 4209 SdHoareTripleChecker+Invalid, 3672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:45:12,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4380 Valid, 4209 Invalid, 3672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3668 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-22 01:45:12,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2022-11-22 01:45:13,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 1451. [2022-11-22 01:45:13,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1422 states have (on average 1.4064697609001406) internal successors, (2000), 1450 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) [2022-11-22 01:45:13,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 2000 transitions. [2022-11-22 01:45:13,199 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 2000 transitions. Word has length 109 [2022-11-22 01:45:13,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:13,199 INFO L495 AbstractCegarLoop]: Abstraction has 1451 states and 2000 transitions. [2022-11-22 01:45:13,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:13,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 2000 transitions. [2022-11-22 01:45:13,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-22 01:45:13,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:13,203 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:45:13,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-22 01:45:13,203 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:45:13,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:13,204 INFO L85 PathProgramCache]: Analyzing trace with hash 148522489, now seen corresponding path program 1 times [2022-11-22 01:45:13,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:45:13,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374176105] [2022-11-22 01:45:13,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:13,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:45:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:13,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:45:13,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:45:13,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374176105] [2022-11-22 01:45:13,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374176105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:45:13,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:45:13,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:45:13,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092103351] [2022-11-22 01:45:13,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:45:13,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:45:13,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:45:13,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:45:13,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:45:13,599 INFO L87 Difference]: Start difference. First operand 1451 states and 2000 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:16,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:45:16,575 INFO L93 Difference]: Finished difference Result 2678 states and 3670 transitions. [2022-11-22 01:45:16,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:45:16,576 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-11-22 01:45:16,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:45:16,582 INFO L225 Difference]: With dead ends: 2678 [2022-11-22 01:45:16,582 INFO L226 Difference]: Without dead ends: 2472 [2022-11-22 01:45:16,583 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:45:16,584 INFO L413 NwaCegarLoop]: 925 mSDtfsCounter, 5244 mSDsluCounter, 2960 mSDsCounter, 0 mSdLazyCounter, 3421 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5244 SdHoareTripleChecker+Valid, 3885 SdHoareTripleChecker+Invalid, 3425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:45:16,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5244 Valid, 3885 Invalid, 3425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3421 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-22 01:45:16,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2472 states. [2022-11-22 01:45:16,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2472 to 1451. [2022-11-22 01:45:16,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1422 states have (on average 1.4057665260196905) internal successors, (1999), 1450 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:16,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 1999 transitions. [2022-11-22 01:45:16,802 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 1999 transitions. Word has length 109 [2022-11-22 01:45:16,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:16,802 INFO L495 AbstractCegarLoop]: Abstraction has 1451 states and 1999 transitions. [2022-11-22 01:45:16,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:16,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 1999 transitions. [2022-11-22 01:45:16,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-22 01:45:16,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:16,807 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:45:16,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-22 01:45:16,807 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:45:16,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:16,808 INFO L85 PathProgramCache]: Analyzing trace with hash -2020099149, now seen corresponding path program 1 times [2022-11-22 01:45:16,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:45:16,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901861563] [2022-11-22 01:45:16,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:16,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:45:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:17,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:45:17,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:45:17,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901861563] [2022-11-22 01:45:17,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901861563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:45:17,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:45:17,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:45:17,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960970553] [2022-11-22 01:45:17,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:45:17,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:45:17,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:45:17,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:45:17,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:45:17,242 INFO L87 Difference]: Start difference. First operand 1451 states and 1999 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:20,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:45:20,115 INFO L93 Difference]: Finished difference Result 2786 states and 3817 transitions. [2022-11-22 01:45:20,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:45:20,116 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-11-22 01:45:20,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:45:20,125 INFO L225 Difference]: With dead ends: 2786 [2022-11-22 01:45:20,126 INFO L226 Difference]: Without dead ends: 2472 [2022-11-22 01:45:20,127 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:45:20,128 INFO L413 NwaCegarLoop]: 945 mSDtfsCounter, 5265 mSDsluCounter, 2955 mSDsCounter, 0 mSdLazyCounter, 3420 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5265 SdHoareTripleChecker+Valid, 3900 SdHoareTripleChecker+Invalid, 3424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:45:20,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5265 Valid, 3900 Invalid, 3424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3420 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-22 01:45:20,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2472 states. [2022-11-22 01:45:20,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2472 to 1451. [2022-11-22 01:45:20,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1422 states have (on average 1.4043600562587903) internal successors, (1997), 1450 states have internal predecessors, (1997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:20,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 1997 transitions. [2022-11-22 01:45:20,363 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 1997 transitions. Word has length 109 [2022-11-22 01:45:20,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:20,364 INFO L495 AbstractCegarLoop]: Abstraction has 1451 states and 1997 transitions. [2022-11-22 01:45:20,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:20,364 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 1997 transitions. [2022-11-22 01:45:20,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-22 01:45:20,367 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:20,367 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:45:20,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-22 01:45:20,368 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:45:20,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:20,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1897276727, now seen corresponding path program 1 times [2022-11-22 01:45:20,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:45:20,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363130855] [2022-11-22 01:45:20,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:20,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:45:20,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:20,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:45:20,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:45:20,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363130855] [2022-11-22 01:45:20,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363130855] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:45:20,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:45:20,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:45:20,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234059011] [2022-11-22 01:45:20,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:45:20,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:45:20,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:45:20,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:45:20,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:45:20,772 INFO L87 Difference]: Start difference. First operand 1451 states and 1997 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:23,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:45:23,876 INFO L93 Difference]: Finished difference Result 2671 states and 3653 transitions. [2022-11-22 01:45:23,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:45:23,877 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-11-22 01:45:23,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:45:23,881 INFO L225 Difference]: With dead ends: 2671 [2022-11-22 01:45:23,881 INFO L226 Difference]: Without dead ends: 2465 [2022-11-22 01:45:23,882 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:45:23,883 INFO L413 NwaCegarLoop]: 1085 mSDtfsCounter, 4332 mSDsluCounter, 3900 mSDsCounter, 0 mSdLazyCounter, 4089 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4332 SdHoareTripleChecker+Valid, 4985 SdHoareTripleChecker+Invalid, 4093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:45:23,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4332 Valid, 4985 Invalid, 4093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4089 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-22 01:45:23,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2022-11-22 01:45:24,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 1451. [2022-11-22 01:45:24,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1422 states have (on average 1.4029535864978904) internal successors, (1995), 1450 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:24,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 1995 transitions. [2022-11-22 01:45:24,198 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 1995 transitions. Word has length 109 [2022-11-22 01:45:24,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:24,198 INFO L495 AbstractCegarLoop]: Abstraction has 1451 states and 1995 transitions. [2022-11-22 01:45:24,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:24,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 1995 transitions. [2022-11-22 01:45:24,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-22 01:45:24,201 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:24,202 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:45:24,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-22 01:45:24,202 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:45:24,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:24,203 INFO L85 PathProgramCache]: Analyzing trace with hash -211267848, now seen corresponding path program 1 times [2022-11-22 01:45:24,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:45:24,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898252444] [2022-11-22 01:45:24,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:24,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:45:24,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:24,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:45:24,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:45:24,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898252444] [2022-11-22 01:45:24,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898252444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:45:24,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:45:24,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:45:24,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623121622] [2022-11-22 01:45:24,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:45:24,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:45:24,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:45:24,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:45:24,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:45:24,560 INFO L87 Difference]: Start difference. First operand 1451 states and 1995 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:26,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:45:26,864 INFO L93 Difference]: Finished difference Result 2159 states and 2959 transitions. [2022-11-22 01:45:26,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 01:45:26,875 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-11-22 01:45:26,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:45:26,878 INFO L225 Difference]: With dead ends: 2159 [2022-11-22 01:45:26,879 INFO L226 Difference]: Without dead ends: 1571 [2022-11-22 01:45:26,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:45:26,880 INFO L413 NwaCegarLoop]: 805 mSDtfsCounter, 2140 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 3419 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2140 SdHoareTripleChecker+Valid, 3925 SdHoareTripleChecker+Invalid, 3424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:45:26,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2140 Valid, 3925 Invalid, 3424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3419 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 01:45:26,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1571 states. [2022-11-22 01:45:27,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1571 to 1451. [2022-11-22 01:45:27,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1422 states have (on average 1.4015471167369902) internal successors, (1993), 1450 states have internal predecessors, (1993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:27,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 1993 transitions. [2022-11-22 01:45:27,086 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 1993 transitions. Word has length 109 [2022-11-22 01:45:27,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:27,087 INFO L495 AbstractCegarLoop]: Abstraction has 1451 states and 1993 transitions. [2022-11-22 01:45:27,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:27,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 1993 transitions. [2022-11-22 01:45:27,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 01:45:27,090 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:27,090 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:45:27,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-22 01:45:27,091 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:45:27,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:27,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1855263288, now seen corresponding path program 1 times [2022-11-22 01:45:27,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:45:27,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665733959] [2022-11-22 01:45:27,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:27,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:45:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:27,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:45:27,745 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:45:27,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665733959] [2022-11-22 01:45:27,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665733959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:45:27,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:45:27,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 01:45:27,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530871826] [2022-11-22 01:45:27,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:45:27,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:45:27,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:45:27,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:45:27,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:45:27,746 INFO L87 Difference]: Start difference. First operand 1451 states and 1993 transitions. Second operand has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 10 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) [2022-11-22 01:45:32,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:45:32,687 INFO L93 Difference]: Finished difference Result 3261 states and 4414 transitions. [2022-11-22 01:45:32,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 01:45:32,687 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 10 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 [2022-11-22 01:45:32,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:45:32,692 INFO L225 Difference]: With dead ends: 3261 [2022-11-22 01:45:32,692 INFO L226 Difference]: Without dead ends: 3124 [2022-11-22 01:45:32,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 01:45:32,693 INFO L413 NwaCegarLoop]: 1068 mSDtfsCounter, 8715 mSDsluCounter, 3651 mSDsCounter, 0 mSdLazyCounter, 4340 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8715 SdHoareTripleChecker+Valid, 4719 SdHoareTripleChecker+Invalid, 4670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 4340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:45:32,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8715 Valid, 4719 Invalid, 4670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 4340 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-22 01:45:32,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3124 states. [2022-11-22 01:45:32,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3124 to 1455. [2022-11-22 01:45:32,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1426 states have (on average 1.4004207573632539) internal successors, (1997), 1454 states have internal predecessors, (1997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:32,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1997 transitions. [2022-11-22 01:45:32,944 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1997 transitions. Word has length 111 [2022-11-22 01:45:32,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:32,945 INFO L495 AbstractCegarLoop]: Abstraction has 1455 states and 1997 transitions. [2022-11-22 01:45:32,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 10 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) [2022-11-22 01:45:32,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1997 transitions. [2022-11-22 01:45:32,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 01:45:32,948 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:32,948 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:45:32,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-22 01:45:32,948 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:45:32,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:32,949 INFO L85 PathProgramCache]: Analyzing trace with hash -295038365, now seen corresponding path program 1 times [2022-11-22 01:45:32,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:45:32,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921987891] [2022-11-22 01:45:32,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:32,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:45:33,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:33,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:45:33,347 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:45:33,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921987891] [2022-11-22 01:45:33,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921987891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:45:33,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:45:33,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:45:33,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013591962] [2022-11-22 01:45:33,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:45:33,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:45:33,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:45:33,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:45:33,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:45:33,350 INFO L87 Difference]: Start difference. First operand 1455 states and 1997 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) [2022-11-22 01:45:36,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:45:36,788 INFO L93 Difference]: Finished difference Result 2568 states and 3497 transitions. [2022-11-22 01:45:36,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:45:36,788 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 [2022-11-22 01:45:36,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:45:36,792 INFO L225 Difference]: With dead ends: 2568 [2022-11-22 01:45:36,792 INFO L226 Difference]: Without dead ends: 2441 [2022-11-22 01:45:36,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:45:36,793 INFO L413 NwaCegarLoop]: 1186 mSDtfsCounter, 4276 mSDsluCounter, 4066 mSDsCounter, 0 mSdLazyCounter, 4279 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4276 SdHoareTripleChecker+Valid, 5252 SdHoareTripleChecker+Invalid, 4282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:45:36,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4276 Valid, 5252 Invalid, 4282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4279 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-22 01:45:36,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2441 states. [2022-11-22 01:45:37,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2441 to 1455. [2022-11-22 01:45:37,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1426 states have (on average 1.399719495091164) internal successors, (1996), 1454 states have internal predecessors, (1996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:37,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1996 transitions. [2022-11-22 01:45:37,063 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1996 transitions. Word has length 111 [2022-11-22 01:45:37,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:37,063 INFO L495 AbstractCegarLoop]: Abstraction has 1455 states and 1996 transitions. [2022-11-22 01:45:37,063 INFO L496 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) [2022-11-22 01:45:37,063 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1996 transitions. [2022-11-22 01:45:37,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 01:45:37,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:37,065 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:45:37,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-22 01:45:37,066 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:45:37,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:37,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1805807434, now seen corresponding path program 1 times [2022-11-22 01:45:37,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:45:37,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461118625] [2022-11-22 01:45:37,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:37,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:45:37,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:37,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:45:37,407 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:45:37,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461118625] [2022-11-22 01:45:37,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461118625] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:45:37,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:45:37,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:45:37,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684626999] [2022-11-22 01:45:37,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:45:37,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:45:37,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:45:37,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:45:37,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:45:37,409 INFO L87 Difference]: Start difference. First operand 1455 states and 1996 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) [2022-11-22 01:45:40,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:45:40,657 INFO L93 Difference]: Finished difference Result 2706 states and 3688 transitions. [2022-11-22 01:45:40,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:45:40,659 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 [2022-11-22 01:45:40,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:45:40,664 INFO L225 Difference]: With dead ends: 2706 [2022-11-22 01:45:40,664 INFO L226 Difference]: Without dead ends: 2480 [2022-11-22 01:45:40,665 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:45:40,666 INFO L413 NwaCegarLoop]: 1162 mSDtfsCounter, 3131 mSDsluCounter, 3440 mSDsCounter, 0 mSdLazyCounter, 3932 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3131 SdHoareTripleChecker+Valid, 4602 SdHoareTripleChecker+Invalid, 3936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:45:40,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3131 Valid, 4602 Invalid, 3936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3932 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-22 01:45:40,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2022-11-22 01:45:41,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 1455. [2022-11-22 01:45:41,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1426 states have (on average 1.3990182328190743) internal successors, (1995), 1454 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:41,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1995 transitions. [2022-11-22 01:45:41,102 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1995 transitions. Word has length 111 [2022-11-22 01:45:41,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:41,102 INFO L495 AbstractCegarLoop]: Abstraction has 1455 states and 1995 transitions. [2022-11-22 01:45:41,103 INFO L496 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) [2022-11-22 01:45:41,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1995 transitions. [2022-11-22 01:45:41,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 01:45:41,104 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:41,105 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:45:41,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-22 01:45:41,105 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:45:41,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:41,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1626759222, now seen corresponding path program 1 times [2022-11-22 01:45:41,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:45:41,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490437167] [2022-11-22 01:45:41,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:41,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:45:41,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:41,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:45:41,438 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:45:41,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490437167] [2022-11-22 01:45:41,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490437167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:45:41,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:45:41,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:45:41,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167832534] [2022-11-22 01:45:41,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:45:41,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:45:41,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:45:41,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:45:41,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:45:41,440 INFO L87 Difference]: Start difference. First operand 1455 states and 1995 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) [2022-11-22 01:45:44,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:45:44,278 INFO L93 Difference]: Finished difference Result 2521 states and 3409 transitions. [2022-11-22 01:45:44,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:45:44,278 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 [2022-11-22 01:45:44,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:45:44,282 INFO L225 Difference]: With dead ends: 2521 [2022-11-22 01:45:44,282 INFO L226 Difference]: Without dead ends: 2397 [2022-11-22 01:45:44,283 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:45:44,284 INFO L413 NwaCegarLoop]: 779 mSDtfsCounter, 3679 mSDsluCounter, 2518 mSDsCounter, 0 mSdLazyCounter, 3004 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3679 SdHoareTripleChecker+Valid, 3297 SdHoareTripleChecker+Invalid, 3008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:45:44,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3679 Valid, 3297 Invalid, 3008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3004 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-22 01:45:44,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2397 states. [2022-11-22 01:45:44,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2397 to 1455. [2022-11-22 01:45:44,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1426 states have (on average 1.3983169705469847) internal successors, (1994), 1454 states have internal predecessors, (1994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:44,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1994 transitions. [2022-11-22 01:45:44,708 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1994 transitions. Word has length 111 [2022-11-22 01:45:44,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:44,709 INFO L495 AbstractCegarLoop]: Abstraction has 1455 states and 1994 transitions. [2022-11-22 01:45:44,709 INFO L496 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) [2022-11-22 01:45:44,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1994 transitions. [2022-11-22 01:45:44,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 01:45:44,711 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:44,712 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:45:44,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-22 01:45:44,712 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:45:44,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:44,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1108394253, now seen corresponding path program 1 times [2022-11-22 01:45:44,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:45:44,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389146436] [2022-11-22 01:45:44,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:44,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:45:44,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:45,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:45:45,053 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:45:45,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389146436] [2022-11-22 01:45:45,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389146436] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:45:45,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:45:45,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:45:45,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653642770] [2022-11-22 01:45:45,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:45:45,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:45:45,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:45:45,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:45:45,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:45:45,056 INFO L87 Difference]: Start difference. First operand 1455 states and 1994 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) [2022-11-22 01:45:47,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:45:47,945 INFO L93 Difference]: Finished difference Result 2517 states and 3404 transitions. [2022-11-22 01:45:47,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:45:47,945 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 [2022-11-22 01:45:47,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:45:47,948 INFO L225 Difference]: With dead ends: 2517 [2022-11-22 01:45:47,949 INFO L226 Difference]: Without dead ends: 2397 [2022-11-22 01:45:47,949 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:45:47,950 INFO L413 NwaCegarLoop]: 779 mSDtfsCounter, 3670 mSDsluCounter, 2520 mSDsCounter, 0 mSdLazyCounter, 2998 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3670 SdHoareTripleChecker+Valid, 3299 SdHoareTripleChecker+Invalid, 3002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:45:47,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3670 Valid, 3299 Invalid, 3002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2998 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-22 01:45:47,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2397 states. [2022-11-22 01:45:48,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2397 to 1455. [2022-11-22 01:45:48,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1426 states have (on average 1.3976157082748948) internal successors, (1993), 1454 states have internal predecessors, (1993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:48,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1993 transitions. [2022-11-22 01:45:48,317 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1993 transitions. Word has length 111 [2022-11-22 01:45:48,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:48,317 INFO L495 AbstractCegarLoop]: Abstraction has 1455 states and 1993 transitions. [2022-11-22 01:45:48,317 INFO L496 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) [2022-11-22 01:45:48,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1993 transitions. [2022-11-22 01:45:48,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 01:45:48,319 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:48,319 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:45:48,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-22 01:45:48,319 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:45:48,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:48,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1161342119, now seen corresponding path program 1 times [2022-11-22 01:45:48,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:45:48,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419189829] [2022-11-22 01:45:48,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:48,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:45:48,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:48,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:45:48,636 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:45:48,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419189829] [2022-11-22 01:45:48,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419189829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:45:48,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:45:48,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:45:48,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102347365] [2022-11-22 01:45:48,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:45:48,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:45:48,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:45:48,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:45:48,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:45:48,638 INFO L87 Difference]: Start difference. First operand 1455 states and 1993 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) [2022-11-22 01:45:51,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:45:51,555 INFO L93 Difference]: Finished difference Result 2517 states and 3402 transitions. [2022-11-22 01:45:51,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:45:51,555 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 [2022-11-22 01:45:51,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:45:51,559 INFO L225 Difference]: With dead ends: 2517 [2022-11-22 01:45:51,559 INFO L226 Difference]: Without dead ends: 2397 [2022-11-22 01:45:51,560 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:45:51,560 INFO L413 NwaCegarLoop]: 779 mSDtfsCounter, 3667 mSDsluCounter, 2520 mSDsCounter, 0 mSdLazyCounter, 2993 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3667 SdHoareTripleChecker+Valid, 3299 SdHoareTripleChecker+Invalid, 2997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:45:51,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3667 Valid, 3299 Invalid, 2997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2993 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-22 01:45:51,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2397 states. [2022-11-22 01:45:51,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2397 to 1455. [2022-11-22 01:45:51,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1426 states have (on average 1.3969144460028051) internal successors, (1992), 1454 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:51,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1992 transitions. [2022-11-22 01:45:51,984 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1992 transitions. Word has length 111 [2022-11-22 01:45:51,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:51,986 INFO L495 AbstractCegarLoop]: Abstraction has 1455 states and 1992 transitions. [2022-11-22 01:45:51,986 INFO L496 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) [2022-11-22 01:45:51,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1992 transitions. [2022-11-22 01:45:51,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 01:45:51,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:51,988 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:45:51,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-22 01:45:51,989 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:45:51,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:51,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1589926345, now seen corresponding path program 1 times [2022-11-22 01:45:51,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:45:51,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035694903] [2022-11-22 01:45:51,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:51,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:45:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:52,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:45:52,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:45:52,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035694903] [2022-11-22 01:45:52,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035694903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:45:52,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:45:52,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:45:52,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603835468] [2022-11-22 01:45:52,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:45:52,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:45:52,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:45:52,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:45:52,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:45:52,332 INFO L87 Difference]: Start difference. First operand 1455 states and 1992 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) [2022-11-22 01:45:55,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:45:55,335 INFO L93 Difference]: Finished difference Result 2516 states and 3399 transitions. [2022-11-22 01:45:55,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:45:55,336 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 [2022-11-22 01:45:55,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:45:55,338 INFO L225 Difference]: With dead ends: 2516 [2022-11-22 01:45:55,338 INFO L226 Difference]: Without dead ends: 2397 [2022-11-22 01:45:55,339 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:45:55,339 INFO L413 NwaCegarLoop]: 779 mSDtfsCounter, 3657 mSDsluCounter, 2517 mSDsCounter, 0 mSdLazyCounter, 2990 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3657 SdHoareTripleChecker+Valid, 3296 SdHoareTripleChecker+Invalid, 2994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:45:55,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3657 Valid, 3296 Invalid, 2994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2990 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 01:45:55,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2397 states. [2022-11-22 01:45:55,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2397 to 1455. [2022-11-22 01:45:55,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1426 states have (on average 1.3962131837307152) internal successors, (1991), 1454 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:45:55,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1991 transitions. [2022-11-22 01:45:55,705 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1991 transitions. Word has length 111 [2022-11-22 01:45:55,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:55,706 INFO L495 AbstractCegarLoop]: Abstraction has 1455 states and 1991 transitions. [2022-11-22 01:45:55,706 INFO L496 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) [2022-11-22 01:45:55,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1991 transitions. [2022-11-22 01:45:55,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 01:45:55,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:55,708 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:45:55,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-22 01:45:55,709 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:45:55,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:55,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1856015251, now seen corresponding path program 1 times [2022-11-22 01:45:55,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:45:55,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378001105] [2022-11-22 01:45:55,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:55,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:45:55,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:56,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:45:56,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:45:56,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378001105] [2022-11-22 01:45:56,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378001105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:45:56,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:45:56,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:45:56,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761132202] [2022-11-22 01:45:56,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:45:56,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:45:56,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:45:56,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:45:56,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:45:56,075 INFO L87 Difference]: Start difference. First operand 1455 states and 1991 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) [2022-11-22 01:45:59,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:45:59,570 INFO L93 Difference]: Finished difference Result 2597 states and 3529 transitions. [2022-11-22 01:45:59,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:45:59,571 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 [2022-11-22 01:45:59,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:45:59,573 INFO L225 Difference]: With dead ends: 2597 [2022-11-22 01:45:59,573 INFO L226 Difference]: Without dead ends: 2441 [2022-11-22 01:45:59,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:45:59,574 INFO L413 NwaCegarLoop]: 1154 mSDtfsCounter, 4287 mSDsluCounter, 4008 mSDsCounter, 0 mSdLazyCounter, 4159 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4287 SdHoareTripleChecker+Valid, 5162 SdHoareTripleChecker+Invalid, 4163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:45:59,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4287 Valid, 5162 Invalid, 4163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4159 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-22 01:45:59,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2441 states. [2022-11-22 01:45:59,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2441 to 1455. [2022-11-22 01:45:59,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1426 states have (on average 1.3948106591865357) internal successors, (1989), 1454 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) [2022-11-22 01:45:59,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1989 transitions. [2022-11-22 01:45:59,968 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1989 transitions. Word has length 111 [2022-11-22 01:45:59,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:59,969 INFO L495 AbstractCegarLoop]: Abstraction has 1455 states and 1989 transitions. [2022-11-22 01:45:59,969 INFO L496 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) [2022-11-22 01:45:59,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1989 transitions. [2022-11-22 01:45:59,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 01:45:59,970 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:59,970 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:45:59,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-22 01:45:59,971 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:45:59,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:59,971 INFO L85 PathProgramCache]: Analyzing trace with hash 178520325, now seen corresponding path program 1 times [2022-11-22 01:45:59,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:45:59,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903649925] [2022-11-22 01:45:59,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:59,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:00,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:46:00,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:00,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903649925] [2022-11-22 01:46:00,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903649925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:00,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:00,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 01:46:00,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181925340] [2022-11-22 01:46:00,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:00,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:46:00,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:00,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:46:00,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:46:00,545 INFO L87 Difference]: Start difference. First operand 1455 states and 1989 transitions. Second operand has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 10 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) [2022-11-22 01:46:06,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:06,052 INFO L93 Difference]: Finished difference Result 3316 states and 4481 transitions. [2022-11-22 01:46:06,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 01:46:06,053 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 10 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 [2022-11-22 01:46:06,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:06,056 INFO L225 Difference]: With dead ends: 3316 [2022-11-22 01:46:06,057 INFO L226 Difference]: Without dead ends: 3160 [2022-11-22 01:46:06,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 01:46:06,059 INFO L413 NwaCegarLoop]: 1047 mSDtfsCounter, 8790 mSDsluCounter, 3589 mSDsCounter, 0 mSdLazyCounter, 4231 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8790 SdHoareTripleChecker+Valid, 4636 SdHoareTripleChecker+Invalid, 4569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 4231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:06,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8790 Valid, 4636 Invalid, 4569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 4231 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-22 01:46:06,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3160 states. [2022-11-22 01:46:06,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3160 to 1463. [2022-11-22 01:46:06,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1434 states have (on average 1.392608089260809) internal successors, (1997), 1462 states have internal predecessors, (1997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:46:06,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 1997 transitions. [2022-11-22 01:46:06,486 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 1997 transitions. Word has length 111 [2022-11-22 01:46:06,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:06,487 INFO L495 AbstractCegarLoop]: Abstraction has 1463 states and 1997 transitions. [2022-11-22 01:46:06,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 10 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) [2022-11-22 01:46:06,487 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 1997 transitions. [2022-11-22 01:46:06,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 01:46:06,489 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:06,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:06,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-22 01:46:06,490 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:46:06,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:06,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1739636962, now seen corresponding path program 1 times [2022-11-22 01:46:06,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:06,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178581685] [2022-11-22 01:46:06,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:06,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:06,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:46:06,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:06,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178581685] [2022-11-22 01:46:06,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178581685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:06,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:06,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:46:06,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342194940] [2022-11-22 01:46:06,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:06,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:46:06,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:06,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:46:06,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:46:06,807 INFO L87 Difference]: Start difference. First operand 1463 states and 1997 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) [2022-11-22 01:46:09,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:09,891 INFO L93 Difference]: Finished difference Result 2533 states and 3415 transitions. [2022-11-22 01:46:09,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:46:09,891 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 [2022-11-22 01:46:09,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:09,894 INFO L225 Difference]: With dead ends: 2533 [2022-11-22 01:46:09,894 INFO L226 Difference]: Without dead ends: 2405 [2022-11-22 01:46:09,895 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:46:09,896 INFO L413 NwaCegarLoop]: 796 mSDtfsCounter, 5455 mSDsluCounter, 2571 mSDsCounter, 0 mSdLazyCounter, 3040 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5455 SdHoareTripleChecker+Valid, 3367 SdHoareTripleChecker+Invalid, 3044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:09,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5455 Valid, 3367 Invalid, 3044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3040 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 01:46:09,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2405 states. [2022-11-22 01:46:10,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2405 to 1463. [2022-11-22 01:46:10,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1434 states have (on average 1.391213389121339) internal successors, (1995), 1462 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:46:10,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 1995 transitions. [2022-11-22 01:46:10,300 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 1995 transitions. Word has length 111 [2022-11-22 01:46:10,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:10,300 INFO L495 AbstractCegarLoop]: Abstraction has 1463 states and 1995 transitions. [2022-11-22 01:46:10,300 INFO L496 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) [2022-11-22 01:46:10,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 1995 transitions. [2022-11-22 01:46:10,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 01:46:10,301 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:10,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:10,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-22 01:46:10,302 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:46:10,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:10,303 INFO L85 PathProgramCache]: Analyzing trace with hash 2129832071, now seen corresponding path program 1 times [2022-11-22 01:46:10,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:10,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520443472] [2022-11-22 01:46:10,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:10,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:10,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:10,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:46:10,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:10,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520443472] [2022-11-22 01:46:10,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520443472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:10,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:10,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:46:10,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240791364] [2022-11-22 01:46:10,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:10,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:46:10,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:10,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:46:10,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:46:10,604 INFO L87 Difference]: Start difference. First operand 1463 states and 1995 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) [2022-11-22 01:46:14,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:14,049 INFO L93 Difference]: Finished difference Result 2854 states and 3879 transitions. [2022-11-22 01:46:14,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:46:14,050 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 [2022-11-22 01:46:14,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:14,052 INFO L225 Difference]: With dead ends: 2854 [2022-11-22 01:46:14,052 INFO L226 Difference]: Without dead ends: 2488 [2022-11-22 01:46:14,053 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:46:14,053 INFO L413 NwaCegarLoop]: 1149 mSDtfsCounter, 3227 mSDsluCounter, 3291 mSDsCounter, 0 mSdLazyCounter, 3769 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3227 SdHoareTripleChecker+Valid, 4440 SdHoareTripleChecker+Invalid, 3773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:14,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3227 Valid, 4440 Invalid, 3773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3769 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-22 01:46:14,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2022-11-22 01:46:14,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 1463. [2022-11-22 01:46:14,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1434 states have (on average 1.3898186889818689) internal successors, (1993), 1462 states have internal predecessors, (1993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:46:14,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 1993 transitions. [2022-11-22 01:46:14,404 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 1993 transitions. Word has length 111 [2022-11-22 01:46:14,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:14,404 INFO L495 AbstractCegarLoop]: Abstraction has 1463 states and 1993 transitions. [2022-11-22 01:46:14,405 INFO L496 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) [2022-11-22 01:46:14,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 1993 transitions. [2022-11-22 01:46:14,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 01:46:14,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:14,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:14,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-22 01:46:14,406 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:46:14,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:14,407 INFO L85 PathProgramCache]: Analyzing trace with hash -523083210, now seen corresponding path program 1 times [2022-11-22 01:46:14,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:14,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027517951] [2022-11-22 01:46:14,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:14,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:14,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:46:14,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:14,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027517951] [2022-11-22 01:46:14,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027517951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:14,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:14,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:46:14,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697200590] [2022-11-22 01:46:14,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:14,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:46:14,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:14,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:46:14,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:46:14,717 INFO L87 Difference]: Start difference. First operand 1463 states and 1993 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) [2022-11-22 01:46:17,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:17,782 INFO L93 Difference]: Finished difference Result 2539 states and 3416 transitions. [2022-11-22 01:46:17,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:46:17,783 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 [2022-11-22 01:46:17,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:17,784 INFO L225 Difference]: With dead ends: 2539 [2022-11-22 01:46:17,785 INFO L226 Difference]: Without dead ends: 2405 [2022-11-22 01:46:17,785 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:46:17,786 INFO L413 NwaCegarLoop]: 796 mSDtfsCounter, 3628 mSDsluCounter, 2567 mSDsCounter, 0 mSdLazyCounter, 3031 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3628 SdHoareTripleChecker+Valid, 3363 SdHoareTripleChecker+Invalid, 3035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:17,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3628 Valid, 3363 Invalid, 3035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3031 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-22 01:46:17,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2405 states. [2022-11-22 01:46:18,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2405 to 1463. [2022-11-22 01:46:18,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1434 states have (on average 1.3884239888423988) internal successors, (1991), 1462 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:46:18,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 1991 transitions. [2022-11-22 01:46:18,140 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 1991 transitions. Word has length 111 [2022-11-22 01:46:18,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:18,141 INFO L495 AbstractCegarLoop]: Abstraction has 1463 states and 1991 transitions. [2022-11-22 01:46:18,141 INFO L496 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) [2022-11-22 01:46:18,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 1991 transitions. [2022-11-22 01:46:18,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 01:46:18,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:18,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:18,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-22 01:46:18,143 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:46:18,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:18,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1483529920, now seen corresponding path program 1 times [2022-11-22 01:46:18,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:18,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276429471] [2022-11-22 01:46:18,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:18,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:18,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:46:18,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:18,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276429471] [2022-11-22 01:46:18,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276429471] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:18,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:18,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:46:18,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873633376] [2022-11-22 01:46:18,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:18,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:46:18,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:18,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:46:18,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:46:18,518 INFO L87 Difference]: Start difference. First operand 1463 states and 1991 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) [2022-11-22 01:46:22,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:22,346 INFO L93 Difference]: Finished difference Result 2703 states and 3666 transitions. [2022-11-22 01:46:22,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:46:22,346 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 [2022-11-22 01:46:22,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:22,349 INFO L225 Difference]: With dead ends: 2703 [2022-11-22 01:46:22,349 INFO L226 Difference]: Without dead ends: 2477 [2022-11-22 01:46:22,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:46:22,350 INFO L413 NwaCegarLoop]: 1420 mSDtfsCounter, 4309 mSDsluCounter, 4483 mSDsCounter, 0 mSdLazyCounter, 4456 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4309 SdHoareTripleChecker+Valid, 5903 SdHoareTripleChecker+Invalid, 4460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:22,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4309 Valid, 5903 Invalid, 4460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4456 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-22 01:46:22,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2477 states. [2022-11-22 01:46:22,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2477 to 1463. [2022-11-22 01:46:22,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1434 states have (on average 1.387029288702929) internal successors, (1989), 1462 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) [2022-11-22 01:46:22,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 1989 transitions. [2022-11-22 01:46:22,715 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 1989 transitions. Word has length 111 [2022-11-22 01:46:22,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:22,716 INFO L495 AbstractCegarLoop]: Abstraction has 1463 states and 1989 transitions. [2022-11-22 01:46:22,716 INFO L496 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) [2022-11-22 01:46:22,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 1989 transitions. [2022-11-22 01:46:22,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-22 01:46:22,717 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:22,717 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:22,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-22 01:46:22,718 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:46:22,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:22,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1900817178, now seen corresponding path program 1 times [2022-11-22 01:46:22,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:22,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842443817] [2022-11-22 01:46:22,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:22,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:23,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:46:23,021 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:23,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842443817] [2022-11-22 01:46:23,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842443817] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:23,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:23,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:46:23,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381364969] [2022-11-22 01:46:23,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:23,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:46:23,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:23,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:46:23,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:46:23,022 INFO L87 Difference]: Start difference. First operand 1463 states and 1989 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) [2022-11-22 01:46:26,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:26,180 INFO L93 Difference]: Finished difference Result 2529 states and 3396 transitions. [2022-11-22 01:46:26,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:46:26,180 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 [2022-11-22 01:46:26,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:26,182 INFO L225 Difference]: With dead ends: 2529 [2022-11-22 01:46:26,182 INFO L226 Difference]: Without dead ends: 2405 [2022-11-22 01:46:26,183 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:46:26,183 INFO L413 NwaCegarLoop]: 796 mSDtfsCounter, 5444 mSDsluCounter, 2567 mSDsCounter, 0 mSdLazyCounter, 3026 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5444 SdHoareTripleChecker+Valid, 3363 SdHoareTripleChecker+Invalid, 3030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:26,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5444 Valid, 3363 Invalid, 3030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3026 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-22 01:46:26,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2405 states. [2022-11-22 01:46:26,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2405 to 1463. [2022-11-22 01:46:26,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1434 states have (on average 1.3863319386331938) internal successors, (1988), 1462 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:46:26,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 1988 transitions. [2022-11-22 01:46:26,555 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 1988 transitions. Word has length 112 [2022-11-22 01:46:26,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:26,555 INFO L495 AbstractCegarLoop]: Abstraction has 1463 states and 1988 transitions. [2022-11-22 01:46:26,555 INFO L496 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) [2022-11-22 01:46:26,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 1988 transitions. [2022-11-22 01:46:26,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-22 01:46:26,558 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:26,558 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:26,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-22 01:46:26,558 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:46:26,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:26,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1967920817, now seen corresponding path program 1 times [2022-11-22 01:46:26,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:26,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408849888] [2022-11-22 01:46:26,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:26,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:26,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:26,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:46:26,888 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:26,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408849888] [2022-11-22 01:46:26,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408849888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:26,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:26,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:46:26,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194522882] [2022-11-22 01:46:26,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:26,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:46:26,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:26,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:46:26,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:46:26,892 INFO L87 Difference]: Start difference. First operand 1463 states and 1988 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) [2022-11-22 01:46:30,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:30,112 INFO L93 Difference]: Finished difference Result 2519 states and 3381 transitions. [2022-11-22 01:46:30,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:46:30,113 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 [2022-11-22 01:46:30,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:30,115 INFO L225 Difference]: With dead ends: 2519 [2022-11-22 01:46:30,115 INFO L226 Difference]: Without dead ends: 2405 [2022-11-22 01:46:30,116 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:46:30,116 INFO L413 NwaCegarLoop]: 787 mSDtfsCounter, 5408 mSDsluCounter, 2570 mSDsCounter, 0 mSdLazyCounter, 3006 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5408 SdHoareTripleChecker+Valid, 3357 SdHoareTripleChecker+Invalid, 3010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:30,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5408 Valid, 3357 Invalid, 3010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3006 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 01:46:30,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2405 states. [2022-11-22 01:46:30,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2405 to 1463. [2022-11-22 01:46:30,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1434 states have (on average 1.385634588563459) internal successors, (1987), 1462 states have internal predecessors, (1987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:46:30,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 1987 transitions. [2022-11-22 01:46:30,506 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 1987 transitions. Word has length 112 [2022-11-22 01:46:30,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:30,506 INFO L495 AbstractCegarLoop]: Abstraction has 1463 states and 1987 transitions. [2022-11-22 01:46:30,506 INFO L496 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) [2022-11-22 01:46:30,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 1987 transitions. [2022-11-22 01:46:30,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-22 01:46:30,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:30,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:30,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-22 01:46:30,508 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:46:30,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:30,508 INFO L85 PathProgramCache]: Analyzing trace with hash -613568086, now seen corresponding path program 1 times [2022-11-22 01:46:30,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:30,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784184064] [2022-11-22 01:46:30,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:30,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:30,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:46:30,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:30,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784184064] [2022-11-22 01:46:30,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784184064] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:30,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:30,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:46:30,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618949920] [2022-11-22 01:46:30,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:30,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:46:30,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:30,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:46:30,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:46:30,878 INFO L87 Difference]: Start difference. First operand 1463 states and 1987 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) [2022-11-22 01:46:34,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:34,640 INFO L93 Difference]: Finished difference Result 2567 states and 3472 transitions. [2022-11-22 01:46:34,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:46:34,640 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 [2022-11-22 01:46:34,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:34,642 INFO L225 Difference]: With dead ends: 2567 [2022-11-22 01:46:34,642 INFO L226 Difference]: Without dead ends: 2441 [2022-11-22 01:46:34,643 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:46:34,643 INFO L413 NwaCegarLoop]: 1224 mSDtfsCounter, 4266 mSDsluCounter, 4149 mSDsCounter, 0 mSdLazyCounter, 4247 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4266 SdHoareTripleChecker+Valid, 5373 SdHoareTripleChecker+Invalid, 4250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:34,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4266 Valid, 5373 Invalid, 4250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4247 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-22 01:46:34,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2441 states. [2022-11-22 01:46:35,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2441 to 1463. [2022-11-22 01:46:35,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1434 states have (on average 1.3849372384937237) internal successors, (1986), 1462 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) [2022-11-22 01:46:35,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 1986 transitions. [2022-11-22 01:46:35,042 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 1986 transitions. Word has length 112 [2022-11-22 01:46:35,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:35,042 INFO L495 AbstractCegarLoop]: Abstraction has 1463 states and 1986 transitions. [2022-11-22 01:46:35,043 INFO L496 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) [2022-11-22 01:46:35,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 1986 transitions. [2022-11-22 01:46:35,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-22 01:46:35,045 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:35,045 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:35,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-22 01:46:35,045 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:46:35,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:35,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1016931783, now seen corresponding path program 1 times [2022-11-22 01:46:35,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:35,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338521744] [2022-11-22 01:46:35,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:35,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:35,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:35,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:46:35,347 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:35,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338521744] [2022-11-22 01:46:35,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338521744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:35,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:35,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:46:35,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653664317] [2022-11-22 01:46:35,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:35,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:46:35,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:35,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:46:35,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:46:35,350 INFO L87 Difference]: Start difference. First operand 1463 states and 1986 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) [2022-11-22 01:46:38,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:38,982 INFO L93 Difference]: Finished difference Result 2597 states and 3513 transitions. [2022-11-22 01:46:38,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:46:38,983 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 [2022-11-22 01:46:38,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:38,985 INFO L225 Difference]: With dead ends: 2597 [2022-11-22 01:46:38,985 INFO L226 Difference]: Without dead ends: 2441 [2022-11-22 01:46:38,985 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:46:38,986 INFO L413 NwaCegarLoop]: 1067 mSDtfsCounter, 4537 mSDsluCounter, 3360 mSDsCounter, 0 mSdLazyCounter, 3870 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4537 SdHoareTripleChecker+Valid, 4427 SdHoareTripleChecker+Invalid, 3873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:38,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4537 Valid, 4427 Invalid, 3873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3870 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-22 01:46:38,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2441 states. [2022-11-22 01:46:39,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2441 to 1455. [2022-11-22 01:46:39,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1426 states have (on average 1.385694249649369) internal successors, (1976), 1454 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) [2022-11-22 01:46:39,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1976 transitions. [2022-11-22 01:46:39,423 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1976 transitions. Word has length 112 [2022-11-22 01:46:39,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:39,424 INFO L495 AbstractCegarLoop]: Abstraction has 1455 states and 1976 transitions. [2022-11-22 01:46:39,424 INFO L496 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) [2022-11-22 01:46:39,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1976 transitions. [2022-11-22 01:46:39,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:46:39,425 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:39,425 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:39,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-22 01:46:39,425 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:46:39,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:39,426 INFO L85 PathProgramCache]: Analyzing trace with hash 498012842, now seen corresponding path program 1 times [2022-11-22 01:46:39,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:39,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186775875] [2022-11-22 01:46:39,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:39,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:39,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:39,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:46:39,963 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:39,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186775875] [2022-11-22 01:46:39,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186775875] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:39,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:39,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 01:46:39,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179428892] [2022-11-22 01:46:39,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:39,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:46:39,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:39,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:46:39,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:46:39,964 INFO L87 Difference]: Start difference. First operand 1455 states and 1976 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 01:46:45,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:45,866 INFO L93 Difference]: Finished difference Result 3279 states and 4403 transitions. [2022-11-22 01:46:45,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 01:46:45,866 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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 [2022-11-22 01:46:45,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:45,870 INFO L225 Difference]: With dead ends: 3279 [2022-11-22 01:46:45,870 INFO L226 Difference]: Without dead ends: 3133 [2022-11-22 01:46:45,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 01:46:45,871 INFO L413 NwaCegarLoop]: 1090 mSDtfsCounter, 9031 mSDsluCounter, 3628 mSDsCounter, 0 mSdLazyCounter, 4182 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9031 SdHoareTripleChecker+Valid, 4718 SdHoareTripleChecker+Invalid, 4513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 4182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:45,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9031 Valid, 4718 Invalid, 4513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 4182 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-22 01:46:45,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3133 states. [2022-11-22 01:46:46,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3133 to 1459. [2022-11-22 01:46:46,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1459 states, 1430 states have (on average 1.3846153846153846) internal successors, (1980), 1458 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) [2022-11-22 01:46:46,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1459 states to 1459 states and 1980 transitions. [2022-11-22 01:46:46,337 INFO L78 Accepts]: Start accepts. Automaton has 1459 states and 1980 transitions. Word has length 113 [2022-11-22 01:46:46,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:46,337 INFO L495 AbstractCegarLoop]: Abstraction has 1459 states and 1980 transitions. [2022-11-22 01:46:46,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 01:46:46,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1459 states and 1980 transitions. [2022-11-22 01:46:46,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:46:46,340 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:46,340 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:46,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-22 01:46:46,341 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:46:46,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:46,341 INFO L85 PathProgramCache]: Analyzing trace with hash 89167614, now seen corresponding path program 1 times [2022-11-22 01:46:46,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:46,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204933545] [2022-11-22 01:46:46,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:46,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:46,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:46:46,680 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:46,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204933545] [2022-11-22 01:46:46,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204933545] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:46,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:46,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:46:46,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947044349] [2022-11-22 01:46:46,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:46,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:46:46,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:46,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:46:46,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:46:46,686 INFO L87 Difference]: Start difference. First operand 1459 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) [2022-11-22 01:46:50,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:50,225 INFO L93 Difference]: Finished difference Result 2525 states and 3386 transitions. [2022-11-22 01:46:50,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:46:50,225 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 [2022-11-22 01:46:50,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:50,227 INFO L225 Difference]: With dead ends: 2525 [2022-11-22 01:46:50,227 INFO L226 Difference]: Without dead ends: 2401 [2022-11-22 01:46:50,228 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:46:50,228 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 5208 mSDsluCounter, 2700 mSDsCounter, 0 mSdLazyCounter, 3212 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5208 SdHoareTripleChecker+Valid, 3540 SdHoareTripleChecker+Invalid, 3215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:50,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5208 Valid, 3540 Invalid, 3215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3212 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 01:46:50,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2401 states. [2022-11-22 01:46:50,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2401 to 1459. [2022-11-22 01:46:50,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1459 states, 1430 states have (on average 1.383916083916084) internal successors, (1979), 1458 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) [2022-11-22 01:46:50,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1459 states to 1459 states and 1979 transitions. [2022-11-22 01:46:50,643 INFO L78 Accepts]: Start accepts. Automaton has 1459 states and 1979 transitions. Word has length 113 [2022-11-22 01:46:50,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:50,644 INFO L495 AbstractCegarLoop]: Abstraction has 1459 states and 1979 transitions. [2022-11-22 01:46:50,644 INFO L496 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) [2022-11-22 01:46:50,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1459 states and 1979 transitions. [2022-11-22 01:46:50,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:46:50,645 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:50,645 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:50,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-22 01:46:50,646 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:46:50,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:50,646 INFO L85 PathProgramCache]: Analyzing trace with hash 457269789, now seen corresponding path program 1 times [2022-11-22 01:46:50,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:50,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747239931] [2022-11-22 01:46:50,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:50,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:51,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:46:51,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:51,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747239931] [2022-11-22 01:46:51,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747239931] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:51,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:51,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 01:46:51,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863686887] [2022-11-22 01:46:51,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:51,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:46:51,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:51,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:46:51,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:46:51,182 INFO L87 Difference]: Start difference. First operand 1459 states and 1979 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 01:46:57,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:57,305 INFO L93 Difference]: Finished difference Result 3147 states and 4205 transitions. [2022-11-22 01:46:57,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 01:46:57,305 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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 [2022-11-22 01:46:57,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:57,308 INFO L225 Difference]: With dead ends: 3147 [2022-11-22 01:46:57,308 INFO L226 Difference]: Without dead ends: 3023 [2022-11-22 01:46:57,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 01:46:57,309 INFO L413 NwaCegarLoop]: 872 mSDtfsCounter, 9061 mSDsluCounter, 3466 mSDsCounter, 0 mSdLazyCounter, 4066 mSolverCounterSat, 379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9061 SdHoareTripleChecker+Valid, 4338 SdHoareTripleChecker+Invalid, 4445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 379 IncrementalHoareTripleChecker+Valid, 4066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:57,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9061 Valid, 4338 Invalid, 4445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [379 Valid, 4066 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-22 01:46:57,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3023 states. [2022-11-22 01:46:57,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3023 to 1463. [2022-11-22 01:46:57,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1434 states have (on average 1.3828451882845187) internal successors, (1983), 1462 states have internal predecessors, (1983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:46:57,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 1983 transitions. [2022-11-22 01:46:57,860 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 1983 transitions. Word has length 113 [2022-11-22 01:46:57,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:57,860 INFO L495 AbstractCegarLoop]: Abstraction has 1463 states and 1983 transitions. [2022-11-22 01:46:57,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 01:46:57,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 1983 transitions. [2022-11-22 01:46:57,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:46:57,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:57,863 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:57,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-22 01:46:57,864 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:46:57,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:57,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1092664937, now seen corresponding path program 1 times [2022-11-22 01:46:57,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:57,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349547925] [2022-11-22 01:46:57,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:57,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:58,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:46:58,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:58,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349547925] [2022-11-22 01:46:58,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349547925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:58,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:58,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:46:58,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323108281] [2022-11-22 01:46:58,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:58,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:46:58,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:58,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:46:58,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:46:58,197 INFO L87 Difference]: Start difference. First operand 1463 states and 1983 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) [2022-11-22 01:47:01,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:01,979 INFO L93 Difference]: Finished difference Result 2521 states and 3380 transitions. [2022-11-22 01:47:01,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:47:01,980 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 [2022-11-22 01:47:01,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:01,982 INFO L225 Difference]: With dead ends: 2521 [2022-11-22 01:47:01,982 INFO L226 Difference]: Without dead ends: 2401 [2022-11-22 01:47:01,983 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:47:01,983 INFO L413 NwaCegarLoop]: 814 mSDtfsCounter, 5308 mSDsluCounter, 2633 mSDsCounter, 0 mSdLazyCounter, 3078 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5308 SdHoareTripleChecker+Valid, 3447 SdHoareTripleChecker+Invalid, 3082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:01,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5308 Valid, 3447 Invalid, 3082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3078 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 01:47:01,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2401 states. [2022-11-22 01:47:02,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2401 to 1463. [2022-11-22 01:47:02,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1434 states have (on average 1.3821478382147838) internal successors, (1982), 1462 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) [2022-11-22 01:47:02,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 1982 transitions. [2022-11-22 01:47:02,463 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 1982 transitions. Word has length 113 [2022-11-22 01:47:02,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:47:02,463 INFO L495 AbstractCegarLoop]: Abstraction has 1463 states and 1982 transitions. [2022-11-22 01:47:02,464 INFO L496 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) [2022-11-22 01:47:02,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 1982 transitions. [2022-11-22 01:47:02,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:47:02,465 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:47:02,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:47:02,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-22 01:47:02,465 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:47:02,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:47:02,466 INFO L85 PathProgramCache]: Analyzing trace with hash -367433408, now seen corresponding path program 1 times [2022-11-22 01:47:02,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:47:02,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143060719] [2022-11-22 01:47:02,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:02,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:47:02,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:02,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:47:02,712 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:47:02,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143060719] [2022-11-22 01:47:02,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143060719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:47:02,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:47:02,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:47:02,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883209488] [2022-11-22 01:47:02,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:47:02,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:47:02,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:47:02,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:47:02,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:47:02,714 INFO L87 Difference]: Start difference. First operand 1463 states and 1982 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) [2022-11-22 01:47:06,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:06,334 INFO L93 Difference]: Finished difference Result 2521 states and 3379 transitions. [2022-11-22 01:47:06,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:47:06,335 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 [2022-11-22 01:47:06,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:06,337 INFO L225 Difference]: With dead ends: 2521 [2022-11-22 01:47:06,337 INFO L226 Difference]: Without dead ends: 2401 [2022-11-22 01:47:06,338 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:47:06,338 INFO L413 NwaCegarLoop]: 835 mSDtfsCounter, 5212 mSDsluCounter, 2694 mSDsCounter, 0 mSdLazyCounter, 3179 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5212 SdHoareTripleChecker+Valid, 3529 SdHoareTripleChecker+Invalid, 3182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:06,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5212 Valid, 3529 Invalid, 3182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3179 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 01:47:06,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2401 states. [2022-11-22 01:47:06,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2401 to 1463. [2022-11-22 01:47:06,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1434 states have (on average 1.381450488145049) internal successors, (1981), 1462 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) [2022-11-22 01:47:06,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 1981 transitions. [2022-11-22 01:47:06,849 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 1981 transitions. Word has length 113 [2022-11-22 01:47:06,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:47:06,849 INFO L495 AbstractCegarLoop]: Abstraction has 1463 states and 1981 transitions. [2022-11-22 01:47:06,850 INFO L496 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) [2022-11-22 01:47:06,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 1981 transitions. [2022-11-22 01:47:06,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:47:06,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:47:06,852 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:47:06,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-22 01:47:06,853 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:47:06,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:47:06,853 INFO L85 PathProgramCache]: Analyzing trace with hash -166549948, now seen corresponding path program 1 times [2022-11-22 01:47:06,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:47:06,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899359984] [2022-11-22 01:47:06,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:06,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:47:06,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:07,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:47:07,095 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:47:07,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899359984] [2022-11-22 01:47:07,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899359984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:47:07,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:47:07,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:47:07,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071111700] [2022-11-22 01:47:07,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:47:07,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:47:07,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:47:07,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:47:07,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:47:07,097 INFO L87 Difference]: Start difference. First operand 1463 states and 1981 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) [2022-11-22 01:47:10,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:10,832 INFO L93 Difference]: Finished difference Result 2521 states and 3378 transitions. [2022-11-22 01:47:10,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:47:10,839 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 [2022-11-22 01:47:10,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:10,842 INFO L225 Difference]: With dead ends: 2521 [2022-11-22 01:47:10,842 INFO L226 Difference]: Without dead ends: 2401 [2022-11-22 01:47:10,843 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:47:10,844 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 5246 mSDsluCounter, 2670 mSDsCounter, 0 mSdLazyCounter, 3153 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5246 SdHoareTripleChecker+Valid, 3510 SdHoareTripleChecker+Invalid, 3157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:10,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5246 Valid, 3510 Invalid, 3157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3153 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 01:47:10,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2401 states. [2022-11-22 01:47:11,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2401 to 1463. [2022-11-22 01:47:11,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1434 states have (on average 1.3807531380753137) internal successors, (1980), 1462 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) [2022-11-22 01:47:11,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 1980 transitions. [2022-11-22 01:47:11,346 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 1980 transitions. Word has length 113 [2022-11-22 01:47:11,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:47:11,346 INFO L495 AbstractCegarLoop]: Abstraction has 1463 states and 1980 transitions. [2022-11-22 01:47:11,346 INFO L496 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) [2022-11-22 01:47:11,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 1980 transitions. [2022-11-22 01:47:11,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:47:11,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:47:11,348 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:47:11,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-22 01:47:11,348 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:47:11,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:47:11,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1617394527, now seen corresponding path program 1 times [2022-11-22 01:47:11,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:47:11,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627224928] [2022-11-22 01:47:11,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:11,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:47:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:11,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:47:11,624 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:47:11,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627224928] [2022-11-22 01:47:11,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627224928] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:47:11,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:47:11,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:47:11,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11390450] [2022-11-22 01:47:11,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:47:11,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:47:11,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:47:11,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:47:11,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:47:11,631 INFO L87 Difference]: Start difference. First operand 1463 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) [2022-11-22 01:47:15,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:15,292 INFO L93 Difference]: Finished difference Result 2515 states and 3367 transitions. [2022-11-22 01:47:15,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:47:15,292 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 [2022-11-22 01:47:15,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:15,295 INFO L225 Difference]: With dead ends: 2515 [2022-11-22 01:47:15,295 INFO L226 Difference]: Without dead ends: 2401 [2022-11-22 01:47:15,295 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:47:15,296 INFO L413 NwaCegarLoop]: 814 mSDtfsCounter, 3514 mSDsluCounter, 2639 mSDsCounter, 0 mSdLazyCounter, 3061 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3514 SdHoareTripleChecker+Valid, 3453 SdHoareTripleChecker+Invalid, 3065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:15,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3514 Valid, 3453 Invalid, 3065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3061 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 01:47:15,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2401 states. [2022-11-22 01:47:15,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2401 to 1463. [2022-11-22 01:47:15,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1434 states have (on average 1.3800557880055788) internal successors, (1979), 1462 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) [2022-11-22 01:47:15,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 1979 transitions. [2022-11-22 01:47:15,810 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 1979 transitions. Word has length 113 [2022-11-22 01:47:15,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:47:15,810 INFO L495 AbstractCegarLoop]: Abstraction has 1463 states and 1979 transitions. [2022-11-22 01:47:15,810 INFO L496 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) [2022-11-22 01:47:15,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 1979 transitions. [2022-11-22 01:47:15,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:47:15,813 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:47:15,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:47:15,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-22 01:47:15,813 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:47:15,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:47:15,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1072781494, now seen corresponding path program 1 times [2022-11-22 01:47:15,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:47:15,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466571481] [2022-11-22 01:47:15,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:15,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:47:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:16,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:47:16,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:47:16,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466571481] [2022-11-22 01:47:16,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466571481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:47:16,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:47:16,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 01:47:16,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594142771] [2022-11-22 01:47:16,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:47:16,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:47:16,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:47:16,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:47:16,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:47:16,211 INFO L87 Difference]: Start difference. First operand 1463 states and 1979 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 01:47:22,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:22,816 INFO L93 Difference]: Finished difference Result 3265 states and 4379 transitions. [2022-11-22 01:47:22,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 01:47:22,816 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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 [2022-11-22 01:47:22,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:22,819 INFO L225 Difference]: With dead ends: 3265 [2022-11-22 01:47:22,820 INFO L226 Difference]: Without dead ends: 3128 [2022-11-22 01:47:22,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 01:47:22,821 INFO L413 NwaCegarLoop]: 1055 mSDtfsCounter, 9054 mSDsluCounter, 3564 mSDsCounter, 0 mSdLazyCounter, 4084 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9054 SdHoareTripleChecker+Valid, 4619 SdHoareTripleChecker+Invalid, 4422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 4084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:22,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9054 Valid, 4619 Invalid, 4422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 4084 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-22 01:47:22,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3128 states. [2022-11-22 01:47:23,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3128 to 1467. [2022-11-22 01:47:23,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467 states, 1438 states have (on average 1.3789986091794157) internal successors, (1983), 1466 states have internal predecessors, (1983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:47:23,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 1983 transitions. [2022-11-22 01:47:23,363 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 1983 transitions. Word has length 113 [2022-11-22 01:47:23,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:47:23,363 INFO L495 AbstractCegarLoop]: Abstraction has 1467 states and 1983 transitions. [2022-11-22 01:47:23,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 01:47:23,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 1983 transitions. [2022-11-22 01:47:23,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:47:23,364 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:47:23,365 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:47:23,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-22 01:47:23,365 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:47:23,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:47:23,366 INFO L85 PathProgramCache]: Analyzing trace with hash 76277264, now seen corresponding path program 1 times [2022-11-22 01:47:23,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:47:23,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687904416] [2022-11-22 01:47:23,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:23,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:47:23,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:23,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:47:23,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:47:23,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687904416] [2022-11-22 01:47:23,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687904416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:47:23,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:47:23,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:47:23,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969116349] [2022-11-22 01:47:23,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:47:23,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:47:23,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:47:23,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:47:23,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:47:23,642 INFO L87 Difference]: Start difference. First operand 1467 states and 1983 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) [2022-11-22 01:47:27,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:27,487 INFO L93 Difference]: Finished difference Result 2525 states and 3379 transitions. [2022-11-22 01:47:27,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:47:27,488 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 [2022-11-22 01:47:27,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:27,490 INFO L225 Difference]: With dead ends: 2525 [2022-11-22 01:47:27,490 INFO L226 Difference]: Without dead ends: 2405 [2022-11-22 01:47:27,490 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:47:27,491 INFO L413 NwaCegarLoop]: 814 mSDtfsCounter, 5304 mSDsluCounter, 2628 mSDsCounter, 0 mSdLazyCounter, 3054 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5304 SdHoareTripleChecker+Valid, 3442 SdHoareTripleChecker+Invalid, 3058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:27,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5304 Valid, 3442 Invalid, 3058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3054 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 01:47:27,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2405 states. [2022-11-22 01:47:28,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2405 to 1467. [2022-11-22 01:47:28,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467 states, 1438 states have (on average 1.3783031988873435) internal successors, (1982), 1466 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) [2022-11-22 01:47:28,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 1982 transitions. [2022-11-22 01:47:28,021 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 1982 transitions. Word has length 113 [2022-11-22 01:47:28,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:47:28,021 INFO L495 AbstractCegarLoop]: Abstraction has 1467 states and 1982 transitions. [2022-11-22 01:47:28,021 INFO L496 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) [2022-11-22 01:47:28,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 1982 transitions. [2022-11-22 01:47:28,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:47:28,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:47:28,023 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:47:28,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-22 01:47:28,023 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:47:28,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:47:28,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1104510179, now seen corresponding path program 1 times [2022-11-22 01:47:28,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:47:28,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48662413] [2022-11-22 01:47:28,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:28,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:47:28,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:28,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:47:28,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:47:28,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48662413] [2022-11-22 01:47:28,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48662413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:47:28,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:47:28,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:47:28,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849895961] [2022-11-22 01:47:28,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:47:28,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:47:28,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:47:28,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:47:28,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:47:28,297 INFO L87 Difference]: Start difference. First operand 1467 states and 1982 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) [2022-11-22 01:47:32,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:32,174 INFO L93 Difference]: Finished difference Result 2524 states and 3377 transitions. [2022-11-22 01:47:32,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:47:32,174 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 [2022-11-22 01:47:32,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:32,176 INFO L225 Difference]: With dead ends: 2524 [2022-11-22 01:47:32,177 INFO L226 Difference]: Without dead ends: 2405 [2022-11-22 01:47:32,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 01:47:32,177 INFO L413 NwaCegarLoop]: 814 mSDtfsCounter, 5293 mSDsluCounter, 2633 mSDsCounter, 0 mSdLazyCounter, 3054 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5293 SdHoareTripleChecker+Valid, 3447 SdHoareTripleChecker+Invalid, 3058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:32,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5293 Valid, 3447 Invalid, 3058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3054 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 01:47:32,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2405 states. [2022-11-22 01:47:32,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2405 to 1467. [2022-11-22 01:47:32,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467 states, 1438 states have (on average 1.377607788595271) internal successors, (1981), 1466 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) [2022-11-22 01:47:32,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 1981 transitions. [2022-11-22 01:47:32,713 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 1981 transitions. Word has length 113 [2022-11-22 01:47:32,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:47:32,713 INFO L495 AbstractCegarLoop]: Abstraction has 1467 states and 1981 transitions. [2022-11-22 01:47:32,713 INFO L496 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) [2022-11-22 01:47:32,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 1981 transitions. [2022-11-22 01:47:32,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:47:32,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:47:32,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:47:32,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-22 01:47:32,715 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:47:32,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:47:32,716 INFO L85 PathProgramCache]: Analyzing trace with hash -415633616, now seen corresponding path program 1 times [2022-11-22 01:47:32,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:47:32,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447001760] [2022-11-22 01:47:32,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:32,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:47:32,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:33,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:47:33,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:47:33,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447001760] [2022-11-22 01:47:33,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447001760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:47:33,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:47:33,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:47:33,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441793209] [2022-11-22 01:47:33,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:47:33,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:47:33,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:47:33,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:47:33,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:47:33,017 INFO L87 Difference]: Start difference. First operand 1467 states and 1981 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) [2022-11-22 01:47:37,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:37,212 INFO L93 Difference]: Finished difference Result 2577 states and 3470 transitions. [2022-11-22 01:47:37,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:47:37,213 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 [2022-11-22 01:47:37,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:37,215 INFO L225 Difference]: With dead ends: 2577 [2022-11-22 01:47:37,215 INFO L226 Difference]: Without dead ends: 2445 [2022-11-22 01:47:37,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:47:37,216 INFO L413 NwaCegarLoop]: 1198 mSDtfsCounter, 4220 mSDsluCounter, 4109 mSDsCounter, 0 mSdLazyCounter, 4157 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4220 SdHoareTripleChecker+Valid, 5307 SdHoareTripleChecker+Invalid, 4160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:37,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4220 Valid, 5307 Invalid, 4160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4157 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-22 01:47:37,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2445 states. [2022-11-22 01:47:37,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2445 to 1467. [2022-11-22 01:47:37,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467 states, 1438 states have (on average 1.376912378303199) internal successors, (1980), 1466 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) [2022-11-22 01:47:37,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 1980 transitions. [2022-11-22 01:47:37,762 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 1980 transitions. Word has length 113 [2022-11-22 01:47:37,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:47:37,762 INFO L495 AbstractCegarLoop]: Abstraction has 1467 states and 1980 transitions. [2022-11-22 01:47:37,762 INFO L496 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) [2022-11-22 01:47:37,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 1980 transitions. [2022-11-22 01:47:37,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:47:37,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:47:37,765 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:47:37,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-22 01:47:37,765 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:47:37,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:47:37,766 INFO L85 PathProgramCache]: Analyzing trace with hash -809939846, now seen corresponding path program 1 times [2022-11-22 01:47:37,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:47:37,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018067996] [2022-11-22 01:47:37,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:37,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:47:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:38,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:47:38,020 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:47:38,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018067996] [2022-11-22 01:47:38,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018067996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:47:38,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:47:38,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:47:38,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496329711] [2022-11-22 01:47:38,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:47:38,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:47:38,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:47:38,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:47:38,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:47:38,022 INFO L87 Difference]: Start difference. First operand 1467 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) [2022-11-22 01:47:41,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:41,939 INFO L93 Difference]: Finished difference Result 2524 states and 3375 transitions. [2022-11-22 01:47:41,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:47:41,940 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 [2022-11-22 01:47:41,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:41,942 INFO L225 Difference]: With dead ends: 2524 [2022-11-22 01:47:41,942 INFO L226 Difference]: Without dead ends: 2405 [2022-11-22 01:47:41,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-11-22 01:47:41,943 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 5229 mSDsluCounter, 2678 mSDsCounter, 0 mSdLazyCounter, 3098 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5229 SdHoareTripleChecker+Valid, 3507 SdHoareTripleChecker+Invalid, 3102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:41,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5229 Valid, 3507 Invalid, 3102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3098 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 01:47:41,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2405 states. [2022-11-22 01:47:42,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2405 to 1467. [2022-11-22 01:47:42,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467 states, 1438 states have (on average 1.3762169680111265) internal successors, (1979), 1466 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) [2022-11-22 01:47:42,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 1979 transitions. [2022-11-22 01:47:42,494 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 1979 transitions. Word has length 113 [2022-11-22 01:47:42,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:47:42,495 INFO L495 AbstractCegarLoop]: Abstraction has 1467 states and 1979 transitions. [2022-11-22 01:47:42,495 INFO L496 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) [2022-11-22 01:47:42,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 1979 transitions. [2022-11-22 01:47:42,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:47:42,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:47:42,498 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:47:42,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-22 01:47:42,498 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:47:42,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:47:42,499 INFO L85 PathProgramCache]: Analyzing trace with hash -856470652, now seen corresponding path program 1 times [2022-11-22 01:47:42,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:47:42,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201804006] [2022-11-22 01:47:42,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:42,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:47:42,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:42,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:47:42,888 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:47:42,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201804006] [2022-11-22 01:47:42,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201804006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:47:42,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:47:42,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 01:47:42,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063874679] [2022-11-22 01:47:42,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:47:42,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:47:42,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:47:42,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:47:42,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:47:42,890 INFO L87 Difference]: Start difference. First operand 1467 states and 1979 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 01:47:50,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:50,030 INFO L93 Difference]: Finished difference Result 3255 states and 4364 transitions. [2022-11-22 01:47:50,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 01:47:50,030 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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 [2022-11-22 01:47:50,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:50,033 INFO L225 Difference]: With dead ends: 3255 [2022-11-22 01:47:50,033 INFO L226 Difference]: Without dead ends: 3123 [2022-11-22 01:47:50,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 01:47:50,034 INFO L413 NwaCegarLoop]: 1051 mSDtfsCounter, 8567 mSDsluCounter, 4609 mSDsCounter, 0 mSdLazyCounter, 5059 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8567 SdHoareTripleChecker+Valid, 5660 SdHoareTripleChecker+Invalid, 5397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 5059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:50,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8567 Valid, 5660 Invalid, 5397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 5059 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-22 01:47:50,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3123 states. [2022-11-22 01:47:50,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3123 to 1471. [2022-11-22 01:47:50,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1471 states, 1442 states have (on average 1.3751733703190014) internal successors, (1983), 1470 states have internal predecessors, (1983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:47:50,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 1983 transitions. [2022-11-22 01:47:50,628 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 1983 transitions. Word has length 113 [2022-11-22 01:47:50,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:47:50,628 INFO L495 AbstractCegarLoop]: Abstraction has 1471 states and 1983 transitions. [2022-11-22 01:47:50,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 01:47:50,628 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 1983 transitions. [2022-11-22 01:47:50,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:47:50,630 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:47:50,630 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:47:50,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-22 01:47:50,630 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:47:50,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:47:50,630 INFO L85 PathProgramCache]: Analyzing trace with hash 713173466, now seen corresponding path program 1 times [2022-11-22 01:47:50,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:47:50,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497713705] [2022-11-22 01:47:50,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:50,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:47:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:51,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:47:51,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:47:51,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497713705] [2022-11-22 01:47:51,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497713705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:47:51,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:47:51,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 01:47:51,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143114250] [2022-11-22 01:47:51,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:47:51,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:47:51,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:47:51,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:47:51,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:47:51,048 INFO L87 Difference]: Start difference. First operand 1471 states and 1983 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 01:47:57,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:47:57,674 INFO L93 Difference]: Finished difference Result 3182 states and 4241 transitions. [2022-11-22 01:47:57,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 01:47:57,675 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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 [2022-11-22 01:47:57,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:47:57,677 INFO L225 Difference]: With dead ends: 3182 [2022-11-22 01:47:57,677 INFO L226 Difference]: Without dead ends: 3052 [2022-11-22 01:47:57,678 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:47:57,679 INFO L413 NwaCegarLoop]: 877 mSDtfsCounter, 9035 mSDsluCounter, 3099 mSDsCounter, 0 mSdLazyCounter, 3622 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9035 SdHoareTripleChecker+Valid, 3976 SdHoareTripleChecker+Invalid, 4000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 3622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:47:57,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9035 Valid, 3976 Invalid, 4000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 3622 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-22 01:47:57,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3052 states. [2022-11-22 01:47:58,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3052 to 1479. [2022-11-22 01:47:58,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 1450 states have (on average 1.3731034482758622) internal successors, (1991), 1478 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:47:58,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 1991 transitions. [2022-11-22 01:47:58,267 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 1991 transitions. Word has length 113 [2022-11-22 01:47:58,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:47:58,267 INFO L495 AbstractCegarLoop]: Abstraction has 1479 states and 1991 transitions. [2022-11-22 01:47:58,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 01:47:58,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 1991 transitions. [2022-11-22 01:47:58,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:47:58,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:47:58,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:47:58,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-22 01:47:58,269 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:47:58,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:47:58,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1349460328, now seen corresponding path program 1 times [2022-11-22 01:47:58,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:47:58,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908013488] [2022-11-22 01:47:58,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:47:58,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:47:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:47:58,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:47:58,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:47:58,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908013488] [2022-11-22 01:47:58,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908013488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:47:58,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:47:58,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:47:58,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713589977] [2022-11-22 01:47:58,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:47:58,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:47:58,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:47:58,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:47:58,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:47:58,604 INFO L87 Difference]: Start difference. First operand 1479 states and 1991 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) [2022-11-22 01:48:02,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:48:02,623 INFO L93 Difference]: Finished difference Result 2537 states and 3388 transitions. [2022-11-22 01:48:02,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:48:02,623 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 [2022-11-22 01:48:02,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:48:02,625 INFO L225 Difference]: With dead ends: 2537 [2022-11-22 01:48:02,625 INFO L226 Difference]: Without dead ends: 2409 [2022-11-22 01:48:02,626 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:48:02,626 INFO L413 NwaCegarLoop]: 821 mSDtfsCounter, 5263 mSDsluCounter, 2649 mSDsCounter, 0 mSdLazyCounter, 3058 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5263 SdHoareTripleChecker+Valid, 3470 SdHoareTripleChecker+Invalid, 3062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:48:02,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5263 Valid, 3470 Invalid, 3062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3058 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 01:48:02,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2409 states. [2022-11-22 01:48:03,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2409 to 1479. [2022-11-22 01:48:03,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 1450 states have (on average 1.3717241379310345) internal successors, (1989), 1478 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) [2022-11-22 01:48:03,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 1989 transitions. [2022-11-22 01:48:03,212 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 1989 transitions. Word has length 113 [2022-11-22 01:48:03,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:48:03,212 INFO L495 AbstractCegarLoop]: Abstraction has 1479 states and 1989 transitions. [2022-11-22 01:48:03,212 INFO L496 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) [2022-11-22 01:48:03,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 1989 transitions. [2022-11-22 01:48:03,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:48:03,214 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:48:03,214 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:48:03,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-22 01:48:03,215 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:48:03,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:48:03,215 INFO L85 PathProgramCache]: Analyzing trace with hash 753916519, now seen corresponding path program 1 times [2022-11-22 01:48:03,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:48:03,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12649267] [2022-11-22 01:48:03,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:48:03,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:48:03,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:48:03,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:48:03,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:48:03,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12649267] [2022-11-22 01:48:03,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12649267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:48:03,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:48:03,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 01:48:03,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109397718] [2022-11-22 01:48:03,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:48:03,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:48:03,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:48:03,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:48:03,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:48:03,666 INFO L87 Difference]: Start difference. First operand 1479 states and 1989 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 01:48:11,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:48:11,081 INFO L93 Difference]: Finished difference Result 3326 states and 4447 transitions. [2022-11-22 01:48:11,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 01:48:11,082 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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 [2022-11-22 01:48:11,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:48:11,084 INFO L225 Difference]: With dead ends: 3326 [2022-11-22 01:48:11,085 INFO L226 Difference]: Without dead ends: 3170 [2022-11-22 01:48:11,086 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:48:11,086 INFO L413 NwaCegarLoop]: 1061 mSDtfsCounter, 8252 mSDsluCounter, 4654 mSDsCounter, 0 mSdLazyCounter, 5137 mSolverCounterSat, 337 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8252 SdHoareTripleChecker+Valid, 5715 SdHoareTripleChecker+Invalid, 5474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 337 IncrementalHoareTripleChecker+Valid, 5137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:48:11,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8252 Valid, 5715 Invalid, 5474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [337 Valid, 5137 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-22 01:48:11,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3170 states. [2022-11-22 01:48:11,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3170 to 1487. [2022-11-22 01:48:11,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1487 states, 1458 states have (on average 1.3696844993141288) internal successors, (1997), 1486 states have internal predecessors, (1997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:48:11,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 1997 transitions. [2022-11-22 01:48:11,699 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 1997 transitions. Word has length 113 [2022-11-22 01:48:11,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:48:11,699 INFO L495 AbstractCegarLoop]: Abstraction has 1487 states and 1997 transitions. [2022-11-22 01:48:11,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 01:48:11,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 1997 transitions. [2022-11-22 01:48:11,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:48:11,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:48:11,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:48:11,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-22 01:48:11,701 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:48:11,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:48:11,701 INFO L85 PathProgramCache]: Analyzing trace with hash 345071291, now seen corresponding path program 1 times [2022-11-22 01:48:11,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:48:11,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920967564] [2022-11-22 01:48:11,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:48:11,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:48:11,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:48:11,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:48:11,977 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:48:11,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920967564] [2022-11-22 01:48:11,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920967564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:48:11,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:48:11,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:48:11,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303822333] [2022-11-22 01:48:11,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:48:11,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:48:11,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:48:11,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:48:11,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:48:11,979 INFO L87 Difference]: Start difference. First operand 1487 states and 1997 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) [2022-11-22 01:48:16,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:48:16,101 INFO L93 Difference]: Finished difference Result 2547 states and 3395 transitions. [2022-11-22 01:48:16,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:48:16,102 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 [2022-11-22 01:48:16,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:48:16,104 INFO L225 Difference]: With dead ends: 2547 [2022-11-22 01:48:16,104 INFO L226 Difference]: Without dead ends: 2417 [2022-11-22 01:48:16,105 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:48:16,105 INFO L413 NwaCegarLoop]: 821 mSDtfsCounter, 5262 mSDsluCounter, 2647 mSDsCounter, 0 mSdLazyCounter, 3055 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5262 SdHoareTripleChecker+Valid, 3468 SdHoareTripleChecker+Invalid, 3059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:48:16,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5262 Valid, 3468 Invalid, 3059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3055 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 01:48:16,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2417 states. [2022-11-22 01:48:16,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2417 to 1487. [2022-11-22 01:48:16,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1487 states, 1458 states have (on average 1.368312757201646) internal successors, (1995), 1486 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:48:16,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 1995 transitions. [2022-11-22 01:48:16,750 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 1995 transitions. Word has length 113 [2022-11-22 01:48:16,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:48:16,751 INFO L495 AbstractCegarLoop]: Abstraction has 1487 states and 1995 transitions. [2022-11-22 01:48:16,751 INFO L496 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) [2022-11-22 01:48:16,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 1995 transitions. [2022-11-22 01:48:16,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:48:16,752 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:48:16,753 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:48:16,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-22 01:48:16,753 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:48:16,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:48:16,753 INFO L85 PathProgramCache]: Analyzing trace with hash -110638017, now seen corresponding path program 1 times [2022-11-22 01:48:16,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:48:16,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957350987] [2022-11-22 01:48:16,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:48:16,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:48:16,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:48:17,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:48:17,011 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:48:17,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957350987] [2022-11-22 01:48:17,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957350987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:48:17,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:48:17,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:48:17,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127643663] [2022-11-22 01:48:17,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:48:17,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:48:17,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:48:17,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:48:17,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:48:17,013 INFO L87 Difference]: Start difference. First operand 1487 states and 1995 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) [2022-11-22 01:48:21,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:48:21,077 INFO L93 Difference]: Finished difference Result 2545 states and 3392 transitions. [2022-11-22 01:48:21,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:48:21,077 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 [2022-11-22 01:48:21,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:48:21,079 INFO L225 Difference]: With dead ends: 2545 [2022-11-22 01:48:21,079 INFO L226 Difference]: Without dead ends: 2417 [2022-11-22 01:48:21,080 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:48:21,080 INFO L413 NwaCegarLoop]: 821 mSDtfsCounter, 5257 mSDsluCounter, 2649 mSDsCounter, 0 mSdLazyCounter, 3050 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5257 SdHoareTripleChecker+Valid, 3470 SdHoareTripleChecker+Invalid, 3054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:48:21,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5257 Valid, 3470 Invalid, 3054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3050 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 01:48:21,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2417 states. [2022-11-22 01:48:21,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2417 to 1487. [2022-11-22 01:48:21,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1487 states, 1458 states have (on average 1.3669410150891632) internal successors, (1993), 1486 states have internal predecessors, (1993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:48:21,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 1993 transitions. [2022-11-22 01:48:21,716 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 1993 transitions. Word has length 113 [2022-11-22 01:48:21,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:48:21,716 INFO L495 AbstractCegarLoop]: Abstraction has 1487 states and 1993 transitions. [2022-11-22 01:48:21,716 INFO L496 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) [2022-11-22 01:48:21,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 1993 transitions. [2022-11-22 01:48:21,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:48:21,718 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:48:21,718 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:48:21,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-22 01:48:21,718 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:48:21,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:48:21,718 INFO L85 PathProgramCache]: Analyzing trace with hash -746707412, now seen corresponding path program 1 times [2022-11-22 01:48:21,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:48:21,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650178003] [2022-11-22 01:48:21,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:48:21,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:48:21,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:48:22,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:48:22,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:48:22,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650178003] [2022-11-22 01:48:22,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650178003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:48:22,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:48:22,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 01:48:22,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440832644] [2022-11-22 01:48:22,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:48:22,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:48:22,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:48:22,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:48:22,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:48:22,235 INFO L87 Difference]: Start difference. First operand 1487 states and 1993 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 01:48:29,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:48:29,308 INFO L93 Difference]: Finished difference Result 3190 states and 4241 transitions. [2022-11-22 01:48:29,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 01:48:29,308 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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 [2022-11-22 01:48:29,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:48:29,311 INFO L225 Difference]: With dead ends: 3190 [2022-11-22 01:48:29,311 INFO L226 Difference]: Without dead ends: 3060 [2022-11-22 01:48:29,312 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:48:29,312 INFO L413 NwaCegarLoop]: 869 mSDtfsCounter, 9060 mSDsluCounter, 3079 mSDsCounter, 0 mSdLazyCounter, 3584 mSolverCounterSat, 382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9060 SdHoareTripleChecker+Valid, 3948 SdHoareTripleChecker+Invalid, 3966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 382 IncrementalHoareTripleChecker+Valid, 3584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:48:29,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9060 Valid, 3948 Invalid, 3966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [382 Valid, 3584 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-22 01:48:29,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3060 states. [2022-11-22 01:48:29,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3060 to 1495. [2022-11-22 01:48:29,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 1466 states have (on average 1.36493860845839) internal successors, (2001), 1494 states have internal predecessors, (2001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:48:29,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 2001 transitions. [2022-11-22 01:48:29,973 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 2001 transitions. Word has length 113 [2022-11-22 01:48:29,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:48:29,973 INFO L495 AbstractCegarLoop]: Abstraction has 1495 states and 2001 transitions. [2022-11-22 01:48:29,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 01:48:29,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 2001 transitions. [2022-11-22 01:48:29,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:48:29,975 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:48:29,975 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:48:29,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-11-22 01:48:29,975 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:48:29,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:48:29,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1075080690, now seen corresponding path program 1 times [2022-11-22 01:48:29,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:48:29,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756322757] [2022-11-22 01:48:29,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:48:29,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:48:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:48:30,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:48:30,207 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:48:30,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756322757] [2022-11-22 01:48:30,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756322757] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:48:30,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:48:30,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:48:30,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771710112] [2022-11-22 01:48:30,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:48:30,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:48:30,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:48:30,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:48:30,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:48:30,208 INFO L87 Difference]: Start difference. First operand 1495 states and 2001 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) [2022-11-22 01:48:34,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:48:34,417 INFO L93 Difference]: Finished difference Result 2543 states and 3386 transitions. [2022-11-22 01:48:34,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:48:34,417 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 [2022-11-22 01:48:34,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:48:34,419 INFO L225 Difference]: With dead ends: 2543 [2022-11-22 01:48:34,420 INFO L226 Difference]: Without dead ends: 2417 [2022-11-22 01:48:34,420 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:48:34,421 INFO L413 NwaCegarLoop]: 813 mSDtfsCounter, 5274 mSDsluCounter, 2630 mSDsCounter, 0 mSdLazyCounter, 3021 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5274 SdHoareTripleChecker+Valid, 3443 SdHoareTripleChecker+Invalid, 3025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:48:34,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5274 Valid, 3443 Invalid, 3025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3021 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 01:48:34,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2417 states. [2022-11-22 01:48:35,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2417 to 1495. [2022-11-22 01:48:35,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 1466 states have (on average 1.363574351978172) internal successors, (1999), 1494 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:48:35,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1999 transitions. [2022-11-22 01:48:35,088 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1999 transitions. Word has length 113 [2022-11-22 01:48:35,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:48:35,088 INFO L495 AbstractCegarLoop]: Abstraction has 1495 states and 1999 transitions. [2022-11-22 01:48:35,088 INFO L496 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) [2022-11-22 01:48:35,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1999 transitions. [2022-11-22 01:48:35,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:48:35,090 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:48:35,091 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:48:35,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-22 01:48:35,091 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:48:35,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:48:35,091 INFO L85 PathProgramCache]: Analyzing trace with hash -602548897, now seen corresponding path program 1 times [2022-11-22 01:48:35,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:48:35,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959516891] [2022-11-22 01:48:35,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:48:35,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:48:35,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:48:35,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:48:35,343 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:48:35,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959516891] [2022-11-22 01:48:35,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959516891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:48:35,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:48:35,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:48:35,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209126192] [2022-11-22 01:48:35,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:48:35,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:48:35,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:48:35,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:48:35,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:48:35,346 INFO L87 Difference]: Start difference. First operand 1495 states and 1999 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) [2022-11-22 01:48:39,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:48:39,947 INFO L93 Difference]: Finished difference Result 2621 states and 3504 transitions. [2022-11-22 01:48:39,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:48:39,948 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 [2022-11-22 01:48:39,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:48:39,950 INFO L225 Difference]: With dead ends: 2621 [2022-11-22 01:48:39,950 INFO L226 Difference]: Without dead ends: 2469 [2022-11-22 01:48:39,950 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:48:39,951 INFO L413 NwaCegarLoop]: 1083 mSDtfsCounter, 4204 mSDsluCounter, 3916 mSDsCounter, 0 mSdLazyCounter, 3938 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4204 SdHoareTripleChecker+Valid, 4999 SdHoareTripleChecker+Invalid, 3942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:48:39,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4204 Valid, 4999 Invalid, 3942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3938 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-22 01:48:39,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2469 states. [2022-11-22 01:48:40,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2469 to 1495. [2022-11-22 01:48:40,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 1466 states have (on average 1.3622100954979537) internal successors, (1997), 1494 states have internal predecessors, (1997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:48:40,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1997 transitions. [2022-11-22 01:48:40,618 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1997 transitions. Word has length 113 [2022-11-22 01:48:40,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:48:40,619 INFO L495 AbstractCegarLoop]: Abstraction has 1495 states and 1997 transitions. [2022-11-22 01:48:40,619 INFO L496 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) [2022-11-22 01:48:40,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1997 transitions. [2022-11-22 01:48:40,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:48:40,620 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:48:40,620 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:48:40,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-11-22 01:48:40,621 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:48:40,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:48:40,621 INFO L85 PathProgramCache]: Analyzing trace with hash -693878534, now seen corresponding path program 1 times [2022-11-22 01:48:40,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:48:40,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644900250] [2022-11-22 01:48:40,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:48:40,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:48:40,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:48:40,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:48:40,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:48:40,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644900250] [2022-11-22 01:48:40,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644900250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:48:40,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:48:40,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:48:40,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265248297] [2022-11-22 01:48:40,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:48:40,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:48:40,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:48:40,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:48:40,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:48:40,819 INFO L87 Difference]: Start difference. First operand 1495 states and 1997 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) [2022-11-22 01:48:44,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:48:44,996 INFO L93 Difference]: Finished difference Result 2637 states and 3521 transitions. [2022-11-22 01:48:44,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:48:44,996 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 [2022-11-22 01:48:44,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:48:44,998 INFO L225 Difference]: With dead ends: 2637 [2022-11-22 01:48:44,999 INFO L226 Difference]: Without dead ends: 2469 [2022-11-22 01:48:44,999 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:48:44,999 INFO L413 NwaCegarLoop]: 920 mSDtfsCounter, 3392 mSDsluCounter, 2991 mSDsCounter, 0 mSdLazyCounter, 3240 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3392 SdHoareTripleChecker+Valid, 3911 SdHoareTripleChecker+Invalid, 3245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:48:45,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3392 Valid, 3911 Invalid, 3245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3240 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 01:48:45,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2469 states. [2022-11-22 01:48:45,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2469 to 1495. [2022-11-22 01:48:45,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 1466 states have (on average 1.3608458390177354) internal successors, (1995), 1494 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:48:45,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1995 transitions. [2022-11-22 01:48:45,688 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1995 transitions. Word has length 113 [2022-11-22 01:48:45,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:48:45,688 INFO L495 AbstractCegarLoop]: Abstraction has 1495 states and 1995 transitions. [2022-11-22 01:48:45,688 INFO L496 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) [2022-11-22 01:48:45,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1995 transitions. [2022-11-22 01:48:45,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:48:45,690 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:48:45,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:48:45,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-11-22 01:48:45,690 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:48:45,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:48:45,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1102723762, now seen corresponding path program 1 times [2022-11-22 01:48:45,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:48:45,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10370781] [2022-11-22 01:48:45,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:48:45,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:48:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:48:45,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:48:45,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:48:45,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10370781] [2022-11-22 01:48:45,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10370781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:48:45,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:48:45,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:48:45,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319048744] [2022-11-22 01:48:45,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:48:45,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:48:45,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:48:45,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:48:45,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:48:45,921 INFO L87 Difference]: Start difference. First operand 1495 states and 1995 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) [2022-11-22 01:48:50,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:48:50,221 INFO L93 Difference]: Finished difference Result 2551 states and 3389 transitions. [2022-11-22 01:48:50,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:48:50,222 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 [2022-11-22 01:48:50,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:48:50,224 INFO L225 Difference]: With dead ends: 2551 [2022-11-22 01:48:50,224 INFO L226 Difference]: Without dead ends: 2417 [2022-11-22 01:48:50,225 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:48:50,225 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 5133 mSDsluCounter, 2744 mSDsCounter, 0 mSdLazyCounter, 3120 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5133 SdHoareTripleChecker+Valid, 3598 SdHoareTripleChecker+Invalid, 3124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:48:50,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5133 Valid, 3598 Invalid, 3124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3120 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 01:48:50,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2417 states. [2022-11-22 01:48:50,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2417 to 1495. [2022-11-22 01:48:50,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 1466 states have (on average 1.359481582537517) internal successors, (1993), 1494 states have internal predecessors, (1993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:48:50,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1993 transitions. [2022-11-22 01:48:50,909 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1993 transitions. Word has length 113 [2022-11-22 01:48:50,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:48:50,909 INFO L495 AbstractCegarLoop]: Abstraction has 1495 states and 1993 transitions. [2022-11-22 01:48:50,910 INFO L496 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) [2022-11-22 01:48:50,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1993 transitions. [2022-11-22 01:48:50,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:48:50,911 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:48:50,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:48:50,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-11-22 01:48:50,912 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:48:50,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:48:50,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1257063176, now seen corresponding path program 1 times [2022-11-22 01:48:50,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:48:50,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632659956] [2022-11-22 01:48:50,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:48:50,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:48:50,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:48:51,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:48:51,314 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:48:51,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632659956] [2022-11-22 01:48:51,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632659956] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:48:51,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:48:51,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 01:48:51,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992418511] [2022-11-22 01:48:51,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:48:51,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:48:51,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:48:51,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:48:51,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:48:51,316 INFO L87 Difference]: Start difference. First operand 1495 states and 1993 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 01:48:59,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:48:59,452 INFO L93 Difference]: Finished difference Result 3632 states and 4826 transitions. [2022-11-22 01:48:59,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 01:48:59,452 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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 [2022-11-22 01:48:59,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:48:59,455 INFO L225 Difference]: With dead ends: 3632 [2022-11-22 01:48:59,455 INFO L226 Difference]: Without dead ends: 3390 [2022-11-22 01:48:59,456 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:48:59,456 INFO L413 NwaCegarLoop]: 1259 mSDtfsCounter, 8168 mSDsluCounter, 4034 mSDsCounter, 0 mSdLazyCounter, 4592 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8168 SdHoareTripleChecker+Valid, 5293 SdHoareTripleChecker+Invalid, 4897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 4592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:48:59,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8168 Valid, 5293 Invalid, 4897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 4592 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-22 01:48:59,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3390 states. [2022-11-22 01:49:00,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3390 to 1503. [2022-11-22 01:49:00,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 1474 states have (on average 1.3575305291723203) internal successors, (2001), 1502 states have internal predecessors, (2001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:49:00,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 2001 transitions. [2022-11-22 01:49:00,200 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 2001 transitions. Word has length 113 [2022-11-22 01:49:00,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:49:00,200 INFO L495 AbstractCegarLoop]: Abstraction has 1503 states and 2001 transitions. [2022-11-22 01:49:00,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 01:49:00,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 2001 transitions. [2022-11-22 01:49:00,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:49:00,202 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:00,202 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:49:00,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-11-22 01:49:00,202 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:49:00,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:00,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1190152855, now seen corresponding path program 1 times [2022-11-22 01:49:00,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:00,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184531244] [2022-11-22 01:49:00,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:00,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:00,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:00,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:49:00,448 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:49:00,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184531244] [2022-11-22 01:49:00,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184531244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:00,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:49:00,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:49:00,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390223213] [2022-11-22 01:49:00,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:00,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:49:00,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:49:00,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:49:00,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:49:00,449 INFO L87 Difference]: Start difference. First operand 1503 states and 2001 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) [2022-11-22 01:49:05,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:49:05,109 INFO L93 Difference]: Finished difference Result 2637 states and 3515 transitions. [2022-11-22 01:49:05,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:49:05,110 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 [2022-11-22 01:49:05,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:49:05,112 INFO L225 Difference]: With dead ends: 2637 [2022-11-22 01:49:05,112 INFO L226 Difference]: Without dead ends: 2477 [2022-11-22 01:49:05,112 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:49:05,113 INFO L413 NwaCegarLoop]: 1043 mSDtfsCounter, 4366 mSDsluCounter, 3831 mSDsCounter, 0 mSdLazyCounter, 3779 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4366 SdHoareTripleChecker+Valid, 4874 SdHoareTripleChecker+Invalid, 3783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:49:05,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4366 Valid, 4874 Invalid, 3783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3779 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-22 01:49:05,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2477 states. [2022-11-22 01:49:05,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2477 to 1503. [2022-11-22 01:49:05,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 1474 states have (on average 1.3561736770691994) internal successors, (1999), 1502 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:49:05,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1999 transitions. [2022-11-22 01:49:05,833 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1999 transitions. Word has length 113 [2022-11-22 01:49:05,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:49:05,834 INFO L495 AbstractCegarLoop]: Abstraction has 1503 states and 1999 transitions. [2022-11-22 01:49:05,834 INFO L496 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) [2022-11-22 01:49:05,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1999 transitions. [2022-11-22 01:49:05,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:49:05,835 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:05,835 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:49:05,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-11-22 01:49:05,836 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:49:05,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:05,836 INFO L85 PathProgramCache]: Analyzing trace with hash -41094097, now seen corresponding path program 1 times [2022-11-22 01:49:05,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:05,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555079390] [2022-11-22 01:49:05,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:05,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:06,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:49:06,111 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:49:06,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555079390] [2022-11-22 01:49:06,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555079390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:06,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:49:06,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:49:06,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127536536] [2022-11-22 01:49:06,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:06,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:49:06,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:49:06,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:49:06,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:49:06,113 INFO L87 Difference]: Start difference. First operand 1503 states and 1999 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) [2022-11-22 01:49:10,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:49:10,545 INFO L93 Difference]: Finished difference Result 2553 states and 3386 transitions. [2022-11-22 01:49:10,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:49:10,545 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 [2022-11-22 01:49:10,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:49:10,548 INFO L225 Difference]: With dead ends: 2553 [2022-11-22 01:49:10,548 INFO L226 Difference]: Without dead ends: 2425 [2022-11-22 01:49:10,548 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:49:10,549 INFO L413 NwaCegarLoop]: 873 mSDtfsCounter, 5047 mSDsluCounter, 2810 mSDsCounter, 0 mSdLazyCounter, 3172 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5047 SdHoareTripleChecker+Valid, 3683 SdHoareTripleChecker+Invalid, 3176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:49:10,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5047 Valid, 3683 Invalid, 3176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3172 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 01:49:10,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2022-11-22 01:49:11,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 1503. [2022-11-22 01:49:11,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 1474 states have (on average 1.3548168249660788) internal successors, (1997), 1502 states have internal predecessors, (1997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:49:11,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1997 transitions. [2022-11-22 01:49:11,293 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1997 transitions. Word has length 113 [2022-11-22 01:49:11,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:49:11,293 INFO L495 AbstractCegarLoop]: Abstraction has 1503 states and 1997 transitions. [2022-11-22 01:49:11,293 INFO L496 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) [2022-11-22 01:49:11,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1997 transitions. [2022-11-22 01:49:11,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:49:11,294 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:11,294 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:49:11,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-11-22 01:49:11,295 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:49:11,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:11,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1045963746, now seen corresponding path program 1 times [2022-11-22 01:49:11,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:11,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946350814] [2022-11-22 01:49:11,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:11,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:11,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:49:11,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:49:11,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946350814] [2022-11-22 01:49:11,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946350814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:11,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:49:11,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:49:11,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993627183] [2022-11-22 01:49:11,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:11,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:49:11,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:49:11,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:49:11,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:49:11,511 INFO L87 Difference]: Start difference. First operand 1503 states and 1997 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) [2022-11-22 01:49:16,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:49:16,182 INFO L93 Difference]: Finished difference Result 2559 states and 3391 transitions. [2022-11-22 01:49:16,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:49:16,183 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 [2022-11-22 01:49:16,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:49:16,185 INFO L225 Difference]: With dead ends: 2559 [2022-11-22 01:49:16,185 INFO L226 Difference]: Without dead ends: 2425 [2022-11-22 01:49:16,186 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:49:16,187 INFO L413 NwaCegarLoop]: 873 mSDtfsCounter, 5056 mSDsluCounter, 2801 mSDsCounter, 0 mSdLazyCounter, 3164 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5056 SdHoareTripleChecker+Valid, 3674 SdHoareTripleChecker+Invalid, 3168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:49:16,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5056 Valid, 3674 Invalid, 3168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3164 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 01:49:16,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2022-11-22 01:49:16,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 1503. [2022-11-22 01:49:16,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 1474 states have (on average 1.353459972862958) internal successors, (1995), 1502 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:49:16,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1995 transitions. [2022-11-22 01:49:16,958 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1995 transitions. Word has length 113 [2022-11-22 01:49:16,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:49:16,959 INFO L495 AbstractCegarLoop]: Abstraction has 1503 states and 1995 transitions. [2022-11-22 01:49:16,959 INFO L496 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) [2022-11-22 01:49:16,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1995 transitions. [2022-11-22 01:49:16,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-22 01:49:16,960 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:16,961 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:49:16,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-11-22 01:49:16,961 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:49:16,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:16,962 INFO L85 PathProgramCache]: Analyzing trace with hash -637118518, now seen corresponding path program 1 times [2022-11-22 01:49:16,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:16,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601986692] [2022-11-22 01:49:16,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:16,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:17,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:49:17,346 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:49:17,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601986692] [2022-11-22 01:49:17,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601986692] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:17,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:49:17,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 01:49:17,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547305901] [2022-11-22 01:49:17,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:17,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:49:17,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:49:17,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:49:17,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:49:17,348 INFO L87 Difference]: Start difference. First operand 1503 states and 1995 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 01:49:25,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:49:25,660 INFO L93 Difference]: Finished difference Result 3376 states and 4485 transitions. [2022-11-22 01:49:25,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 01:49:25,660 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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 [2022-11-22 01:49:25,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:49:25,663 INFO L225 Difference]: With dead ends: 3376 [2022-11-22 01:49:25,663 INFO L226 Difference]: Without dead ends: 3208 [2022-11-22 01:49:25,664 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:49:25,664 INFO L413 NwaCegarLoop]: 1023 mSDtfsCounter, 8769 mSDsluCounter, 4473 mSDsCounter, 0 mSdLazyCounter, 4838 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8769 SdHoareTripleChecker+Valid, 5496 SdHoareTripleChecker+Invalid, 5190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 4838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:49:25,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8769 Valid, 5496 Invalid, 5190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 4838 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-22 01:49:25,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2022-11-22 01:49:26,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 1511. [2022-11-22 01:49:26,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1482 states have (on average 1.3515519568151146) internal successors, (2003), 1510 states have internal predecessors, (2003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:49:26,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 2003 transitions. [2022-11-22 01:49:26,453 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 2003 transitions. Word has length 113 [2022-11-22 01:49:26,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:49:26,453 INFO L495 AbstractCegarLoop]: Abstraction has 1511 states and 2003 transitions. [2022-11-22 01:49:26,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 10 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) [2022-11-22 01:49:26,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 2003 transitions. [2022-11-22 01:49:26,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 01:49:26,455 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:26,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:49:26,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-11-22 01:49:26,455 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:49:26,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:26,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1684740987, now seen corresponding path program 1 times [2022-11-22 01:49:26,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:26,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013251219] [2022-11-22 01:49:26,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:26,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:26,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:26,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:49:26,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:49:26,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013251219] [2022-11-22 01:49:26,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013251219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:26,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:49:26,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:49:26,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161840702] [2022-11-22 01:49:26,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:26,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:49:26,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:49:26,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:49:26,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:49:26,698 INFO L87 Difference]: Start difference. First operand 1511 states and 2003 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) [2022-11-22 01:49:31,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:49:31,342 INFO L93 Difference]: Finished difference Result 2623 states and 3482 transitions. [2022-11-22 01:49:31,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:49:31,343 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 [2022-11-22 01:49:31,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:49:31,344 INFO L225 Difference]: With dead ends: 2623 [2022-11-22 01:49:31,345 INFO L226 Difference]: Without dead ends: 2477 [2022-11-22 01:49:31,345 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:49:31,345 INFO L413 NwaCegarLoop]: 971 mSDtfsCounter, 4840 mSDsluCounter, 3048 mSDsCounter, 0 mSdLazyCounter, 3406 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4840 SdHoareTripleChecker+Valid, 4019 SdHoareTripleChecker+Invalid, 3410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:49:31,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4840 Valid, 4019 Invalid, 3410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3406 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 01:49:31,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2477 states. [2022-11-22 01:49:32,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2477 to 1507. [2022-11-22 01:49:32,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1478 states have (on average 1.3518267929634642) internal successors, (1998), 1506 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:49:32,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 1998 transitions. [2022-11-22 01:49:32,121 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 1998 transitions. Word has length 114 [2022-11-22 01:49:32,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:49:32,122 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 1998 transitions. [2022-11-22 01:49:32,122 INFO L496 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) [2022-11-22 01:49:32,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 1998 transitions. [2022-11-22 01:49:32,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 01:49:32,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:32,123 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:49:32,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-11-22 01:49:32,124 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:49:32,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:32,124 INFO L85 PathProgramCache]: Analyzing trace with hash -2108084155, now seen corresponding path program 1 times [2022-11-22 01:49:32,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:32,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462555267] [2022-11-22 01:49:32,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:32,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:32,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:49:32,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:49:32,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462555267] [2022-11-22 01:49:32,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462555267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:32,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:49:32,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:49:32,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257613480] [2022-11-22 01:49:32,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:32,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:49:32,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:49:32,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:49:32,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:49:32,325 INFO L87 Difference]: Start difference. First operand 1507 states and 1998 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) [2022-11-22 01:49:36,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:49:36,929 INFO L93 Difference]: Finished difference Result 2553 states and 3378 transitions. [2022-11-22 01:49:36,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:49:36,929 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 [2022-11-22 01:49:36,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:49:36,931 INFO L225 Difference]: With dead ends: 2553 [2022-11-22 01:49:36,931 INFO L226 Difference]: Without dead ends: 2429 [2022-11-22 01:49:36,932 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:49:36,932 INFO L413 NwaCegarLoop]: 934 mSDtfsCounter, 4876 mSDsluCounter, 2934 mSDsCounter, 0 mSdLazyCounter, 3331 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4876 SdHoareTripleChecker+Valid, 3868 SdHoareTripleChecker+Invalid, 3335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:49:36,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4876 Valid, 3868 Invalid, 3335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3331 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 01:49:36,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2429 states. [2022-11-22 01:49:37,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2429 to 1503. [2022-11-22 01:49:37,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 1474 states have (on average 1.352103120759837) internal successors, (1993), 1502 states have internal predecessors, (1993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:49:37,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1993 transitions. [2022-11-22 01:49:37,713 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1993 transitions. Word has length 114 [2022-11-22 01:49:37,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:49:37,713 INFO L495 AbstractCegarLoop]: Abstraction has 1503 states and 1993 transitions. [2022-11-22 01:49:37,713 INFO L496 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) [2022-11-22 01:49:37,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1993 transitions. [2022-11-22 01:49:37,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 01:49:37,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:37,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:49:37,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-11-22 01:49:37,715 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:49:37,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:37,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1950859800, now seen corresponding path program 1 times [2022-11-22 01:49:37,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:37,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283216824] [2022-11-22 01:49:37,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:37,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:37,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:49:37,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:49:37,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283216824] [2022-11-22 01:49:37,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283216824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:37,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:49:37,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:49:37,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692532316] [2022-11-22 01:49:37,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:37,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:49:37,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:49:37,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:49:37,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:49:37,928 INFO L87 Difference]: Start difference. First operand 1503 states and 1993 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) [2022-11-22 01:49:43,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:49:43,030 INFO L93 Difference]: Finished difference Result 2610 states and 3467 transitions. [2022-11-22 01:49:43,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:49:43,030 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 [2022-11-22 01:49:43,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:49:43,032 INFO L225 Difference]: With dead ends: 2610 [2022-11-22 01:49:43,032 INFO L226 Difference]: Without dead ends: 2473 [2022-11-22 01:49:43,032 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:49:43,033 INFO L413 NwaCegarLoop]: 990 mSDtfsCounter, 4747 mSDsluCounter, 3137 mSDsCounter, 0 mSdLazyCounter, 3466 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4747 SdHoareTripleChecker+Valid, 4127 SdHoareTripleChecker+Invalid, 3470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:49:43,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4747 Valid, 4127 Invalid, 3470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3466 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-22 01:49:43,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2473 states. [2022-11-22 01:49:44,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2473 to 1499. [2022-11-22 01:49:44,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1499 states, 1470 states have (on average 1.3523809523809525) internal successors, (1988), 1498 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:49:44,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 1988 transitions. [2022-11-22 01:49:44,207 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 1988 transitions. Word has length 114 [2022-11-22 01:49:44,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:49:44,207 INFO L495 AbstractCegarLoop]: Abstraction has 1499 states and 1988 transitions. [2022-11-22 01:49:44,208 INFO L496 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) [2022-11-22 01:49:44,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 1988 transitions. [2022-11-22 01:49:44,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 01:49:44,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:44,210 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:49:44,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-11-22 01:49:44,210 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:49:44,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:44,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1686492803, now seen corresponding path program 1 times [2022-11-22 01:49:44,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:44,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292001730] [2022-11-22 01:49:44,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:44,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:44,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:44,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:49:44,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:49:44,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292001730] [2022-11-22 01:49:44,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292001730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:44,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:49:44,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-22 01:49:44,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756474781] [2022-11-22 01:49:44,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:44,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 01:49:44,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:49:44,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 01:49:44,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:49:44,849 INFO L87 Difference]: Start difference. First operand 1499 states and 1988 transitions. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 9 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) [2022-11-22 01:49:48,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:49:48,486 INFO L93 Difference]: Finished difference Result 2227 states and 2788 transitions. [2022-11-22 01:49:48,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 01:49:48,487 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 9 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 [2022-11-22 01:49:48,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:49:48,489 INFO L225 Difference]: With dead ends: 2227 [2022-11-22 01:49:48,489 INFO L226 Difference]: Without dead ends: 1735 [2022-11-22 01:49:48,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2022-11-22 01:49:48,490 INFO L413 NwaCegarLoop]: 1431 mSDtfsCounter, 5054 mSDsluCounter, 2996 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5054 SdHoareTripleChecker+Valid, 4427 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:49:48,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5054 Valid, 4427 Invalid, 1035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 01:49:48,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2022-11-22 01:49:49,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1119. [2022-11-22 01:49:49,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1119 states, 1097 states have (on average 1.3473108477666362) internal successors, (1478), 1118 states have internal predecessors, (1478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:49:49,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 1478 transitions. [2022-11-22 01:49:49,575 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 1478 transitions. Word has length 114 [2022-11-22 01:49:49,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:49:49,575 INFO L495 AbstractCegarLoop]: Abstraction has 1119 states and 1478 transitions. [2022-11-22 01:49:49,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 9 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) [2022-11-22 01:49:49,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 1478 transitions. [2022-11-22 01:49:49,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 01:49:49,577 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:49,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:49:49,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-11-22 01:49:49,578 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:49:49,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:49,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1529961638, now seen corresponding path program 1 times [2022-11-22 01:49:49,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:49,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368967368] [2022-11-22 01:49:49,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:49,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:49,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:49:49,881 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:49:49,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368967368] [2022-11-22 01:49:49,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368967368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:49,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:49:49,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:49:49,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107359365] [2022-11-22 01:49:49,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:49,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:49:49,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:49:49,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:49:49,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:49:49,883 INFO L87 Difference]: Start difference. First operand 1119 states and 1478 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) [2022-11-22 01:49:54,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:49:54,220 INFO L93 Difference]: Finished difference Result 1989 states and 2627 transitions. [2022-11-22 01:49:54,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:49:54,221 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 [2022-11-22 01:49:54,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:49:54,222 INFO L225 Difference]: With dead ends: 1989 [2022-11-22 01:49:54,222 INFO L226 Difference]: Without dead ends: 1859 [2022-11-22 01:49:54,223 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:49:54,223 INFO L413 NwaCegarLoop]: 608 mSDtfsCounter, 2077 mSDsluCounter, 1844 mSDsCounter, 0 mSdLazyCounter, 2064 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2077 SdHoareTripleChecker+Valid, 2452 SdHoareTripleChecker+Invalid, 2069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:49:54,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2077 Valid, 2452 Invalid, 2069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2064 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 01:49:54,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1859 states. [2022-11-22 01:49:55,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1859 to 1111. [2022-11-22 01:49:55,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 1089 states have (on average 1.3480257116620753) internal successors, (1468), 1110 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:49:55,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1468 transitions. [2022-11-22 01:49:55,336 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1468 transitions. Word has length 114 [2022-11-22 01:49:55,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:49:55,336 INFO L495 AbstractCegarLoop]: Abstraction has 1111 states and 1468 transitions. [2022-11-22 01:49:55,336 INFO L496 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) [2022-11-22 01:49:55,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1468 transitions. [2022-11-22 01:49:55,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 01:49:55,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:49:55,338 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:49:55,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-11-22 01:49:55,338 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:49:55,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:49:55,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1953304806, now seen corresponding path program 1 times [2022-11-22 01:49:55,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:49:55,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766402748] [2022-11-22 01:49:55,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:49:55,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:49:55,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:49:55,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:49:55,600 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:49:55,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766402748] [2022-11-22 01:49:55,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766402748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:49:55,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:49:55,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:49:55,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731610944] [2022-11-22 01:49:55,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:49:55,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:49:55,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:49:55,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:49:55,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:49:55,602 INFO L87 Difference]: Start difference. First operand 1111 states and 1468 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) [2022-11-22 01:49:59,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:49:59,860 INFO L93 Difference]: Finished difference Result 2047 states and 2710 transitions. [2022-11-22 01:49:59,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:49:59,860 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 [2022-11-22 01:49:59,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:49:59,862 INFO L225 Difference]: With dead ends: 2047 [2022-11-22 01:49:59,862 INFO L226 Difference]: Without dead ends: 1891 [2022-11-22 01:49:59,862 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:49:59,865 INFO L413 NwaCegarLoop]: 637 mSDtfsCounter, 2048 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 2120 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2048 SdHoareTripleChecker+Valid, 2542 SdHoareTripleChecker+Invalid, 2125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:49:59,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2048 Valid, 2542 Invalid, 2125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2120 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 01:49:59,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2022-11-22 01:50:00,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 1103. [2022-11-22 01:50:00,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1103 states, 1081 states have (on average 1.3487511563367252) internal successors, (1458), 1102 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:50:00,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1458 transitions. [2022-11-22 01:50:00,995 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1458 transitions. Word has length 114 [2022-11-22 01:50:00,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:00,995 INFO L495 AbstractCegarLoop]: Abstraction has 1103 states and 1458 transitions. [2022-11-22 01:50:00,996 INFO L496 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) [2022-11-22 01:50:00,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1458 transitions. [2022-11-22 01:50:00,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 01:50:00,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:00,997 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:50:00,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-11-22 01:50:00,997 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:50:00,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:00,997 INFO L85 PathProgramCache]: Analyzing trace with hash -776672401, now seen corresponding path program 1 times [2022-11-22 01:50:00,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:00,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372254981] [2022-11-22 01:50:00,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:00,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:01,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:01,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:50:01,207 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:01,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372254981] [2022-11-22 01:50:01,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372254981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:01,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:50:01,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:50:01,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090027767] [2022-11-22 01:50:01,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:01,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:50:01,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:01,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:50:01,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:50:01,209 INFO L87 Difference]: Start difference. First operand 1103 states and 1458 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) [2022-11-22 01:50:05,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:05,295 INFO L93 Difference]: Finished difference Result 1981 states and 2615 transitions. [2022-11-22 01:50:05,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:50:05,296 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 [2022-11-22 01:50:05,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:05,297 INFO L225 Difference]: With dead ends: 1981 [2022-11-22 01:50:05,297 INFO L226 Difference]: Without dead ends: 1851 [2022-11-22 01:50:05,298 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:50:05,298 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 1969 mSDsluCounter, 1961 mSDsCounter, 0 mSdLazyCounter, 2170 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1969 SdHoareTripleChecker+Valid, 2601 SdHoareTripleChecker+Invalid, 2174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:05,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1969 Valid, 2601 Invalid, 2174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2170 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 01:50:05,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1851 states. [2022-11-22 01:50:06,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1851 to 1095. [2022-11-22 01:50:06,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1095 states, 1073 states have (on average 1.3494874184529357) internal successors, (1448), 1094 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:50:06,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1448 transitions. [2022-11-22 01:50:06,137 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1448 transitions. Word has length 114 [2022-11-22 01:50:06,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:06,138 INFO L495 AbstractCegarLoop]: Abstraction has 1095 states and 1448 transitions. [2022-11-22 01:50:06,138 INFO L496 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) [2022-11-22 01:50:06,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1448 transitions. [2022-11-22 01:50:06,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 01:50:06,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:06,139 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:50:06,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-11-22 01:50:06,139 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:50:06,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:06,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1480085478, now seen corresponding path program 1 times [2022-11-22 01:50:06,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:06,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972675647] [2022-11-22 01:50:06,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:06,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:06,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:50:06,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:06,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972675647] [2022-11-22 01:50:06,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972675647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:06,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:50:06,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-22 01:50:06,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441179133] [2022-11-22 01:50:06,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:06,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 01:50:06,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:06,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 01:50:06,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:50:06,781 INFO L87 Difference]: Start difference. First operand 1095 states and 1448 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) [2022-11-22 01:50:08,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:08,810 INFO L93 Difference]: Finished difference Result 1813 states and 2407 transitions. [2022-11-22 01:50:08,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 01:50:08,811 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 [2022-11-22 01:50:08,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:08,812 INFO L225 Difference]: With dead ends: 1813 [2022-11-22 01:50:08,812 INFO L226 Difference]: Without dead ends: 1309 [2022-11-22 01:50:08,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2022-11-22 01:50:08,813 INFO L413 NwaCegarLoop]: 888 mSDtfsCounter, 2011 mSDsluCounter, 4656 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2011 SdHoareTripleChecker+Valid, 5544 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:08,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2011 Valid, 5544 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:50:08,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2022-11-22 01:50:09,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 703. [2022-11-22 01:50:09,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 687 states have (on average 1.3260553129548762) internal successors, (911), 702 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:50:09,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 911 transitions. [2022-11-22 01:50:09,394 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 911 transitions. Word has length 114 [2022-11-22 01:50:09,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:09,395 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 911 transitions. [2022-11-22 01:50:09,395 INFO L496 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) [2022-11-22 01:50:09,395 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 911 transitions. [2022-11-22 01:50:09,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 01:50:09,396 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:09,396 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:50:09,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-11-22 01:50:09,396 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:50:09,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:09,396 INFO L85 PathProgramCache]: Analyzing trace with hash -405440613, now seen corresponding path program 1 times [2022-11-22 01:50:09,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:09,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376238573] [2022-11-22 01:50:09,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:09,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:09,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:09,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:50:09,646 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:09,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376238573] [2022-11-22 01:50:09,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376238573] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:09,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:50:09,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:50:09,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969897631] [2022-11-22 01:50:09,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:09,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:50:09,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:09,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:50:09,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:50:09,647 INFO L87 Difference]: Start difference. First operand 703 states and 911 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) [2022-11-22 01:50:12,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:12,780 INFO L93 Difference]: Finished difference Result 1537 states and 2017 transitions. [2022-11-22 01:50:12,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:50:12,780 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 [2022-11-22 01:50:12,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:12,781 INFO L225 Difference]: With dead ends: 1537 [2022-11-22 01:50:12,781 INFO L226 Difference]: Without dead ends: 1295 [2022-11-22 01:50:12,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2022-11-22 01:50:12,782 INFO L413 NwaCegarLoop]: 498 mSDtfsCounter, 1401 mSDsluCounter, 1270 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 1768 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:12,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1401 Valid, 1768 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:50:12,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1295 states. [2022-11-22 01:50:13,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295 to 695. [2022-11-22 01:50:13,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 679 states have (on average 1.3269513991163475) internal successors, (901), 694 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:50:13,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 901 transitions. [2022-11-22 01:50:13,355 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 901 transitions. Word has length 114 [2022-11-22 01:50:13,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:13,355 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 901 transitions. [2022-11-22 01:50:13,355 INFO L496 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) [2022-11-22 01:50:13,355 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 901 transitions. [2022-11-22 01:50:13,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-22 01:50:13,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:13,356 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:50:13,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-11-22 01:50:13,356 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:50:13,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:13,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1780891135, now seen corresponding path program 1 times [2022-11-22 01:50:13,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:13,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244801210] [2022-11-22 01:50:13,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:13,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:13,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:13,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:50:13,586 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:13,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244801210] [2022-11-22 01:50:13,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244801210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:13,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:50:13,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:50:13,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355280756] [2022-11-22 01:50:13,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:13,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:50:13,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:13,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:50:13,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:50:13,588 INFO L87 Difference]: Start difference. First operand 695 states and 901 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) [2022-11-22 01:50:16,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:16,646 INFO L93 Difference]: Finished difference Result 1447 states and 1898 transitions. [2022-11-22 01:50:16,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:50:16,646 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 [2022-11-22 01:50:16,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:16,648 INFO L225 Difference]: With dead ends: 1447 [2022-11-22 01:50:16,648 INFO L226 Difference]: Without dead ends: 1279 [2022-11-22 01:50:16,648 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:50:16,649 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 1243 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 1571 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 1927 SdHoareTripleChecker+Invalid, 1574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:16,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1243 Valid, 1927 Invalid, 1574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1571 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 01:50:16,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2022-11-22 01:50:17,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 687. [2022-11-22 01:50:17,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 671 states have (on average 1.3278688524590163) internal successors, (891), 686 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:50:17,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 891 transitions. [2022-11-22 01:50:17,179 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 891 transitions. Word has length 114 [2022-11-22 01:50:17,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:17,179 INFO L495 AbstractCegarLoop]: Abstraction has 687 states and 891 transitions. [2022-11-22 01:50:17,179 INFO L496 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) [2022-11-22 01:50:17,180 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 891 transitions. [2022-11-22 01:50:17,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 01:50:17,181 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:17,181 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:50:17,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-11-22 01:50:17,181 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:50:17,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:17,181 INFO L85 PathProgramCache]: Analyzing trace with hash -383544911, now seen corresponding path program 1 times [2022-11-22 01:50:17,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:17,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117906773] [2022-11-22 01:50:17,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:17,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:17,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:50:17,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:17,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117906773] [2022-11-22 01:50:17,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117906773] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:17,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:50:17,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:50:17,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973466410] [2022-11-22 01:50:17,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:17,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:50:17,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:17,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:50:17,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:50:17,391 INFO L87 Difference]: Start difference. First operand 687 states and 891 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) [2022-11-22 01:50:20,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:20,358 INFO L93 Difference]: Finished difference Result 1351 states and 1750 transitions. [2022-11-22 01:50:20,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:50:20,359 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 [2022-11-22 01:50:20,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:20,360 INFO L225 Difference]: With dead ends: 1351 [2022-11-22 01:50:20,360 INFO L226 Difference]: Without dead ends: 1231 [2022-11-22 01:50:20,360 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:50:20,360 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 2048 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2048 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:20,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2048 Valid, 1500 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1194 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:50:20,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2022-11-22 01:50:20,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 687. [2022-11-22 01:50:20,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 671 states have (on average 1.3248882265275708) internal successors, (889), 686 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:50:20,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 889 transitions. [2022-11-22 01:50:20,885 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 889 transitions. Word has length 115 [2022-11-22 01:50:20,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:20,885 INFO L495 AbstractCegarLoop]: Abstraction has 687 states and 889 transitions. [2022-11-22 01:50:20,886 INFO L496 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) [2022-11-22 01:50:20,886 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 889 transitions. [2022-11-22 01:50:20,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 01:50:20,886 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:20,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:50:20,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-11-22 01:50:20,887 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:50:20,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:20,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1528652191, now seen corresponding path program 1 times [2022-11-22 01:50:20,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:20,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79450015] [2022-11-22 01:50:20,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:20,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:21,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:50:21,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:21,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79450015] [2022-11-22 01:50:21,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79450015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:21,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:50:21,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:50:21,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490972676] [2022-11-22 01:50:21,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:21,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:50:21,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:21,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:50:21,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:50:21,134 INFO L87 Difference]: Start difference. First operand 687 states and 889 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) [2022-11-22 01:50:24,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:24,510 INFO L93 Difference]: Finished difference Result 1399 states and 1823 transitions. [2022-11-22 01:50:24,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:50:24,511 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 [2022-11-22 01:50:24,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:24,512 INFO L225 Difference]: With dead ends: 1399 [2022-11-22 01:50:24,512 INFO L226 Difference]: Without dead ends: 1263 [2022-11-22 01:50:24,513 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:50:24,513 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 1935 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1935 SdHoareTripleChecker+Valid, 1715 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:24,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1935 Valid, 1715 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:50:24,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1263 states. [2022-11-22 01:50:25,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1263 to 687. [2022-11-22 01:50:25,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 671 states have (on average 1.3219076005961252) internal successors, (887), 686 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:50:25,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 887 transitions. [2022-11-22 01:50:25,325 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 887 transitions. Word has length 115 [2022-11-22 01:50:25,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:25,325 INFO L495 AbstractCegarLoop]: Abstraction has 687 states and 887 transitions. [2022-11-22 01:50:25,325 INFO L496 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) [2022-11-22 01:50:25,325 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 887 transitions. [2022-11-22 01:50:25,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 01:50:25,326 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:25,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:50:25,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-11-22 01:50:25,326 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:50:25,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:25,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1909035737, now seen corresponding path program 1 times [2022-11-22 01:50:25,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:25,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993109957] [2022-11-22 01:50:25,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:25,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:25,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:50:25,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:25,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993109957] [2022-11-22 01:50:25,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993109957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:25,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:50:25,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 01:50:25,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722766375] [2022-11-22 01:50:25,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:25,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:50:25,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:25,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:50:25,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:50:25,775 INFO L87 Difference]: Start difference. First operand 687 states and 887 transitions. Second operand has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 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) [2022-11-22 01:50:32,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:32,937 INFO L93 Difference]: Finished difference Result 2173 states and 2839 transitions. [2022-11-22 01:50:32,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 01:50:32,937 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 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 [2022-11-22 01:50:32,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:32,939 INFO L225 Difference]: With dead ends: 2173 [2022-11-22 01:50:32,939 INFO L226 Difference]: Without dead ends: 1997 [2022-11-22 01:50:32,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 01:50:32,940 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 3973 mSDsluCounter, 1653 mSDsCounter, 0 mSdLazyCounter, 1889 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3973 SdHoareTripleChecker+Valid, 2199 SdHoareTripleChecker+Invalid, 2011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:32,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3973 Valid, 2199 Invalid, 2011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1889 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-22 01:50:32,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2022-11-22 01:50:33,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 695. [2022-11-22 01:50:33,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 679 states have (on average 1.3181148748159057) internal successors, (895), 694 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:50:33,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 895 transitions. [2022-11-22 01:50:33,708 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 895 transitions. Word has length 115 [2022-11-22 01:50:33,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:33,708 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 895 transitions. [2022-11-22 01:50:33,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 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) [2022-11-22 01:50:33,708 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 895 transitions. [2022-11-22 01:50:33,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 01:50:33,709 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:33,709 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:50:33,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-11-22 01:50:33,709 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:50:33,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:33,710 INFO L85 PathProgramCache]: Analyzing trace with hash 121393216, now seen corresponding path program 1 times [2022-11-22 01:50:33,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:33,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591280365] [2022-11-22 01:50:33,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:33,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:33,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:50:33,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:33,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591280365] [2022-11-22 01:50:33,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591280365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:33,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:50:33,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:50:33,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585484051] [2022-11-22 01:50:33,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:33,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:50:33,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:33,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:50:33,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:50:33,931 INFO L87 Difference]: Start difference. First operand 695 states and 895 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) [2022-11-22 01:50:37,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:37,279 INFO L93 Difference]: Finished difference Result 1355 states and 1749 transitions. [2022-11-22 01:50:37,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:50:37,280 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 [2022-11-22 01:50:37,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:37,281 INFO L225 Difference]: With dead ends: 1355 [2022-11-22 01:50:37,281 INFO L226 Difference]: Without dead ends: 1239 [2022-11-22 01:50:37,281 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:50:37,282 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 1906 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1906 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:37,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1906 Valid, 1606 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:50:37,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2022-11-22 01:50:37,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 695. [2022-11-22 01:50:37,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 679 states have (on average 1.3151693667157585) internal successors, (893), 694 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:50:37,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 893 transitions. [2022-11-22 01:50:37,927 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 893 transitions. Word has length 115 [2022-11-22 01:50:37,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:37,927 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 893 transitions. [2022-11-22 01:50:37,927 INFO L496 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) [2022-11-22 01:50:37,928 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 893 transitions. [2022-11-22 01:50:37,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 01:50:37,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:37,928 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:50:37,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-11-22 01:50:37,929 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:50:37,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:37,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1144564190, now seen corresponding path program 1 times [2022-11-22 01:50:37,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:37,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39142072] [2022-11-22 01:50:37,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:37,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:37,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:38,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:50:38,218 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:38,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39142072] [2022-11-22 01:50:38,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39142072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:38,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:50:38,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:50:38,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587778780] [2022-11-22 01:50:38,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:38,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:50:38,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:38,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:50:38,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:50:38,220 INFO L87 Difference]: Start difference. First operand 695 states and 893 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) [2022-11-22 01:50:41,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:41,383 INFO L93 Difference]: Finished difference Result 1359 states and 1752 transitions. [2022-11-22 01:50:41,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:50:41,384 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 [2022-11-22 01:50:41,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:41,385 INFO L225 Difference]: With dead ends: 1359 [2022-11-22 01:50:41,385 INFO L226 Difference]: Without dead ends: 1239 [2022-11-22 01:50:41,385 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:50:41,386 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 1944 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 1306 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1944 SdHoareTripleChecker+Valid, 1601 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:41,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1944 Valid, 1601 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1306 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:50:41,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2022-11-22 01:50:41,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 695. [2022-11-22 01:50:41,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 679 states have (on average 1.3122238586156112) internal successors, (891), 694 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:50:41,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 891 transitions. [2022-11-22 01:50:41,956 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 891 transitions. Word has length 115 [2022-11-22 01:50:41,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:41,956 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 891 transitions. [2022-11-22 01:50:41,956 INFO L496 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) [2022-11-22 01:50:41,956 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 891 transitions. [2022-11-22 01:50:41,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 01:50:41,957 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:41,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:50:41,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-11-22 01:50:41,957 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:50:41,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:41,957 INFO L85 PathProgramCache]: Analyzing trace with hash -389427615, now seen corresponding path program 1 times [2022-11-22 01:50:41,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:41,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808695465] [2022-11-22 01:50:41,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:41,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:42,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:50:42,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:42,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808695465] [2022-11-22 01:50:42,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808695465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:42,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:50:42,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:50:42,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057340804] [2022-11-22 01:50:42,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:42,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:50:42,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:42,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:50:42,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:50:42,170 INFO L87 Difference]: Start difference. First operand 695 states and 891 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) [2022-11-22 01:50:45,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:45,309 INFO L93 Difference]: Finished difference Result 1359 states and 1748 transitions. [2022-11-22 01:50:45,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:50:45,310 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 [2022-11-22 01:50:45,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:45,311 INFO L225 Difference]: With dead ends: 1359 [2022-11-22 01:50:45,311 INFO L226 Difference]: Without dead ends: 1239 [2022-11-22 01:50:45,312 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:50:45,312 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 1996 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1996 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:45,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1996 Valid, 1552 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:50:45,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2022-11-22 01:50:46,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 695. [2022-11-22 01:50:46,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 679 states have (on average 1.309278350515464) internal successors, (889), 694 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:50:46,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 889 transitions. [2022-11-22 01:50:46,245 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 889 transitions. Word has length 115 [2022-11-22 01:50:46,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:46,246 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 889 transitions. [2022-11-22 01:50:46,246 INFO L496 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) [2022-11-22 01:50:46,246 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 889 transitions. [2022-11-22 01:50:46,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 01:50:46,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:46,247 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:50:46,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-11-22 01:50:46,247 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:50:46,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:46,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1522769487, now seen corresponding path program 1 times [2022-11-22 01:50:46,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:46,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082617216] [2022-11-22 01:50:46,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:46,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:46,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:46,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:50:46,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:46,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082617216] [2022-11-22 01:50:46,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082617216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:46,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:50:46,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:50:46,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104892870] [2022-11-22 01:50:46,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:46,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:50:46,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:46,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:50:46,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:50:46,502 INFO L87 Difference]: Start difference. First operand 695 states and 889 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) [2022-11-22 01:50:49,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:49,865 INFO L93 Difference]: Finished difference Result 1407 states and 1821 transitions. [2022-11-22 01:50:49,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:50:49,865 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 [2022-11-22 01:50:49,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:49,866 INFO L225 Difference]: With dead ends: 1407 [2022-11-22 01:50:49,866 INFO L226 Difference]: Without dead ends: 1271 [2022-11-22 01:50:49,867 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:50:49,867 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 1287 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:49,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 1738 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:50:49,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2022-11-22 01:50:50,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 695. [2022-11-22 01:50:50,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 679 states have (on average 1.3063328424153167) internal successors, (887), 694 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:50:50,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 887 transitions. [2022-11-22 01:50:50,454 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 887 transitions. Word has length 115 [2022-11-22 01:50:50,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:50,454 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 887 transitions. [2022-11-22 01:50:50,454 INFO L496 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) [2022-11-22 01:50:50,454 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 887 transitions. [2022-11-22 01:50:50,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-22 01:50:50,455 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:50,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:50:50,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-11-22 01:50:50,455 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:50:50,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:50,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1694574296, now seen corresponding path program 1 times [2022-11-22 01:50:50,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:50,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752620147] [2022-11-22 01:50:50,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:50,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:50,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:51,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:50:51,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:51,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752620147] [2022-11-22 01:50:51,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752620147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:51,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:50:51,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-22 01:50:51,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716776212] [2022-11-22 01:50:51,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:51,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-22 01:50:51,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:51,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-22 01:50:51,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2022-11-22 01:50:51,735 INFO L87 Difference]: Start difference. First operand 695 states and 887 transitions. Second operand has 19 states, 19 states have (on average 6.052631578947368) internal successors, (115), 18 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) [2022-11-22 01:50:56,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:50:56,559 INFO L93 Difference]: Finished difference Result 1903 states and 2454 transitions. [2022-11-22 01:50:56,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-22 01:50:56,560 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.052631578947368) internal successors, (115), 18 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 [2022-11-22 01:50:56,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:50:56,561 INFO L225 Difference]: With dead ends: 1903 [2022-11-22 01:50:56,562 INFO L226 Difference]: Without dead ends: 1678 [2022-11-22 01:50:56,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=201, Invalid=921, Unknown=0, NotChecked=0, Total=1122 [2022-11-22 01:50:56,563 INFO L413 NwaCegarLoop]: 826 mSDtfsCounter, 2324 mSDsluCounter, 11102 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2324 SdHoareTripleChecker+Valid, 11928 SdHoareTripleChecker+Invalid, 1570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:50:56,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2324 Valid, 11928 Invalid, 1570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-22 01:50:56,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2022-11-22 01:50:57,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 701. [2022-11-22 01:50:57,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 685 states have (on average 1.3051094890510948) internal successors, (894), 700 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:50:57,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 894 transitions. [2022-11-22 01:50:57,491 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 894 transitions. Word has length 115 [2022-11-22 01:50:57,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:50:57,491 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 894 transitions. [2022-11-22 01:50:57,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.052631578947368) internal successors, (115), 18 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) [2022-11-22 01:50:57,492 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 894 transitions. [2022-11-22 01:50:57,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 01:50:57,492 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:50:57,493 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:50:57,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-11-22 01:50:57,493 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:50:57,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:50:57,493 INFO L85 PathProgramCache]: Analyzing trace with hash 993646664, now seen corresponding path program 1 times [2022-11-22 01:50:57,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:50:57,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652579027] [2022-11-22 01:50:57,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:50:57,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:50:57,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:50:58,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:50:58,108 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:50:58,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652579027] [2022-11-22 01:50:58,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652579027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:50:58,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:50:58,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-22 01:50:58,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039285936] [2022-11-22 01:50:58,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:50:58,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 01:50:58,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:50:58,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 01:50:58,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:50:58,112 INFO L87 Difference]: Start difference. First operand 701 states and 894 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) [2022-11-22 01:51:02,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:51:02,050 INFO L93 Difference]: Finished difference Result 1623 states and 2106 transitions. [2022-11-22 01:51:02,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:51:02,051 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 [2022-11-22 01:51:02,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:51:02,052 INFO L225 Difference]: With dead ends: 1623 [2022-11-22 01:51:02,052 INFO L226 Difference]: Without dead ends: 1509 [2022-11-22 01:51:02,053 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:51:02,053 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 2686 mSDsluCounter, 2841 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2686 SdHoareTripleChecker+Valid, 3481 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:51:02,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2686 Valid, 3481 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:51:02,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2022-11-22 01:51:02,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 699. [2022-11-22 01:51:02,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 683 states have (on average 1.3030746705710103) internal successors, (890), 698 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:51:02,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 890 transitions. [2022-11-22 01:51:02,729 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 890 transitions. Word has length 116 [2022-11-22 01:51:02,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:51:02,729 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 890 transitions. [2022-11-22 01:51:02,729 INFO L496 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) [2022-11-22 01:51:02,729 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 890 transitions. [2022-11-22 01:51:02,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 01:51:02,730 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:51:02,730 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:51:02,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-11-22 01:51:02,731 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:51:02,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:51:02,731 INFO L85 PathProgramCache]: Analyzing trace with hash 339464028, now seen corresponding path program 1 times [2022-11-22 01:51:02,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:51:02,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710174531] [2022-11-22 01:51:02,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:51:02,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:51:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:51:03,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:51:03,221 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:51:03,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710174531] [2022-11-22 01:51:03,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710174531] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:51:03,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:51:03,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 01:51:03,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8677666] [2022-11-22 01:51:03,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:51:03,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:51:03,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:51:03,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:51:03,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:51:03,223 INFO L87 Difference]: Start difference. First operand 699 states and 890 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 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) [2022-11-22 01:51:10,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:51:10,535 INFO L93 Difference]: Finished difference Result 1931 states and 2498 transitions. [2022-11-22 01:51:10,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-22 01:51:10,536 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 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 [2022-11-22 01:51:10,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:51:10,537 INFO L225 Difference]: With dead ends: 1931 [2022-11-22 01:51:10,537 INFO L226 Difference]: Without dead ends: 1815 [2022-11-22 01:51:10,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=242, Invalid=688, Unknown=0, NotChecked=0, Total=930 [2022-11-22 01:51:10,538 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 3989 mSDsluCounter, 1315 mSDsCounter, 0 mSdLazyCounter, 1473 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3989 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 1603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:51:10,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3989 Valid, 1732 Invalid, 1603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1473 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 01:51:10,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2022-11-22 01:51:11,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 707. [2022-11-22 01:51:11,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 691 states have (on average 1.2995658465991318) internal successors, (898), 706 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:51:11,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 898 transitions. [2022-11-22 01:51:11,311 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 898 transitions. Word has length 116 [2022-11-22 01:51:11,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:51:11,312 INFO L495 AbstractCegarLoop]: Abstraction has 707 states and 898 transitions. [2022-11-22 01:51:11,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 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) [2022-11-22 01:51:11,312 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 898 transitions. [2022-11-22 01:51:11,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 01:51:11,313 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:51:11,313 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:51:11,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-11-22 01:51:11,313 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:51:11,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:51:11,314 INFO L85 PathProgramCache]: Analyzing trace with hash -309230048, now seen corresponding path program 1 times [2022-11-22 01:51:11,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:51:11,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172170298] [2022-11-22 01:51:11,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:51:11,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:51:11,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:51:11,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:51:11,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:51:11,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172170298] [2022-11-22 01:51:11,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172170298] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:51:11,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:51:11,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:51:11,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863694495] [2022-11-22 01:51:11,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:51:11,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:51:11,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:51:11,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:51:11,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:51:11,586 INFO L87 Difference]: Start difference. First operand 707 states and 898 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-11-22 01:51:15,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:51:15,169 INFO L93 Difference]: Finished difference Result 1359 states and 1740 transitions. [2022-11-22 01:51:15,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:51:15,169 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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 [2022-11-22 01:51:15,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:51:15,171 INFO L225 Difference]: With dead ends: 1359 [2022-11-22 01:51:15,171 INFO L226 Difference]: Without dead ends: 1243 [2022-11-22 01:51:15,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:51:15,171 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 1722 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1722 SdHoareTripleChecker+Valid, 1706 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:51:15,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1722 Valid, 1706 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:51:15,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2022-11-22 01:51:15,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 707. [2022-11-22 01:51:15,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 691 states have (on average 1.296671490593343) internal successors, (896), 706 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:51:15,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 896 transitions. [2022-11-22 01:51:15,981 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 896 transitions. Word has length 116 [2022-11-22 01:51:15,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:51:15,982 INFO L495 AbstractCegarLoop]: Abstraction has 707 states and 896 transitions. [2022-11-22 01:51:15,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-11-22 01:51:15,982 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 896 transitions. [2022-11-22 01:51:15,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 01:51:15,983 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:51:15,983 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:51:15,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-11-22 01:51:15,983 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:51:15,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:51:15,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1574807135, now seen corresponding path program 1 times [2022-11-22 01:51:15,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:51:15,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361863536] [2022-11-22 01:51:15,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:51:15,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:51:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:51:16,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:51:16,492 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:51:16,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361863536] [2022-11-22 01:51:16,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361863536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:51:16,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:51:16,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 01:51:16,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709056947] [2022-11-22 01:51:16,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:51:16,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:51:16,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:51:16,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:51:16,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:51:16,494 INFO L87 Difference]: Start difference. First operand 707 states and 896 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 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) [2022-11-22 01:51:23,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:51:23,101 INFO L93 Difference]: Finished difference Result 1925 states and 2484 transitions. [2022-11-22 01:51:23,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 01:51:23,101 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 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 [2022-11-22 01:51:23,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:51:23,103 INFO L225 Difference]: With dead ends: 1925 [2022-11-22 01:51:23,103 INFO L226 Difference]: Without dead ends: 1805 [2022-11-22 01:51:23,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 01:51:23,104 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 4018 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4018 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 1585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:51:23,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4018 Valid, 1756 Invalid, 1585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 1453 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 01:51:23,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1805 states. [2022-11-22 01:51:23,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1805 to 715. [2022-11-22 01:51:23,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 699 states have (on average 1.2932761087267526) internal successors, (904), 714 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:51:23,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 904 transitions. [2022-11-22 01:51:23,844 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 904 transitions. Word has length 116 [2022-11-22 01:51:23,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:51:23,844 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 904 transitions. [2022-11-22 01:51:23,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 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) [2022-11-22 01:51:23,844 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 904 transitions. [2022-11-22 01:51:23,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 01:51:23,845 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:51:23,845 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:51:23,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-11-22 01:51:23,846 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:51:23,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:51:23,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1916421057, now seen corresponding path program 1 times [2022-11-22 01:51:23,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:51:23,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341930941] [2022-11-22 01:51:23,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:51:23,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:51:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:51:24,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:51:24,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:51:24,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341930941] [2022-11-22 01:51:24,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341930941] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:51:24,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:51:24,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:51:24,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888967329] [2022-11-22 01:51:24,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:51:24,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:51:24,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:51:24,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:51:24,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:51:24,095 INFO L87 Difference]: Start difference. First operand 715 states and 904 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-11-22 01:51:27,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:51:27,589 INFO L93 Difference]: Finished difference Result 1363 states and 1741 transitions. [2022-11-22 01:51:27,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:51:27,589 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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 [2022-11-22 01:51:27,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:51:27,590 INFO L225 Difference]: With dead ends: 1363 [2022-11-22 01:51:27,591 INFO L226 Difference]: Without dead ends: 1243 [2022-11-22 01:51:27,591 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:51:27,591 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 1953 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1953 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 1188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:51:27,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1953 Valid, 1584 Invalid, 1188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1184 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:51:27,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2022-11-22 01:51:28,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 715. [2022-11-22 01:51:28,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 699 states have (on average 1.290414878397711) internal successors, (902), 714 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:51:28,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 902 transitions. [2022-11-22 01:51:28,675 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 902 transitions. Word has length 116 [2022-11-22 01:51:28,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:51:28,675 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 902 transitions. [2022-11-22 01:51:28,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-11-22 01:51:28,676 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 902 transitions. [2022-11-22 01:51:28,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 01:51:28,676 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:51:28,677 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:51:28,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-11-22 01:51:28,677 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:51:28,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:51:28,677 INFO L85 PathProgramCache]: Analyzing trace with hash -466349137, now seen corresponding path program 1 times [2022-11-22 01:51:28,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:51:28,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496863057] [2022-11-22 01:51:28,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:51:28,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:51:28,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:51:29,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:51:29,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:51:29,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496863057] [2022-11-22 01:51:29,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496863057] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:51:29,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:51:29,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 01:51:29,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484430653] [2022-11-22 01:51:29,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:51:29,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:51:29,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:51:29,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:51:29,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:51:29,066 INFO L87 Difference]: Start difference. First operand 715 states and 902 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 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) [2022-11-22 01:51:36,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:51:36,357 INFO L93 Difference]: Finished difference Result 2065 states and 2666 transitions. [2022-11-22 01:51:36,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 01:51:36,358 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 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 [2022-11-22 01:51:36,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:51:36,359 INFO L225 Difference]: With dead ends: 2065 [2022-11-22 01:51:36,359 INFO L226 Difference]: Without dead ends: 1929 [2022-11-22 01:51:36,360 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:51:36,360 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 3653 mSDsluCounter, 1965 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3653 SdHoareTripleChecker+Valid, 2435 SdHoareTripleChecker+Invalid, 2158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:51:36,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3653 Valid, 2435 Invalid, 2158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 2036 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-22 01:51:36,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1929 states. [2022-11-22 01:51:37,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1929 to 723. [2022-11-22 01:51:37,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 707 states have (on average 1.2871287128712872) internal successors, (910), 722 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:51:37,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 910 transitions. [2022-11-22 01:51:37,126 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 910 transitions. Word has length 116 [2022-11-22 01:51:37,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:51:37,126 INFO L495 AbstractCegarLoop]: Abstraction has 723 states and 910 transitions. [2022-11-22 01:51:37,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 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) [2022-11-22 01:51:37,126 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 910 transitions. [2022-11-22 01:51:37,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 01:51:37,127 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:51:37,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:51:37,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-11-22 01:51:37,128 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:51:37,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:51:37,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1867988553, now seen corresponding path program 1 times [2022-11-22 01:51:37,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:51:37,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198253790] [2022-11-22 01:51:37,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:51:37,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:51:37,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:51:37,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:51:37,379 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:51:37,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198253790] [2022-11-22 01:51:37,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198253790] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:51:37,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:51:37,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:51:37,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62158918] [2022-11-22 01:51:37,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:51:37,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:51:37,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:51:37,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:51:37,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:51:37,380 INFO L87 Difference]: Start difference. First operand 723 states and 910 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-11-22 01:51:41,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:51:41,111 INFO L93 Difference]: Finished difference Result 1367 states and 1742 transitions. [2022-11-22 01:51:41,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:51:41,112 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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 [2022-11-22 01:51:41,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:51:41,113 INFO L225 Difference]: With dead ends: 1367 [2022-11-22 01:51:41,113 INFO L226 Difference]: Without dead ends: 1251 [2022-11-22 01:51:41,114 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:51:41,114 INFO L413 NwaCegarLoop]: 405 mSDtfsCounter, 1854 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1854 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:51:41,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1854 Valid, 1638 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:51:41,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2022-11-22 01:51:41,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 723. [2022-11-22 01:51:41,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 707 states have (on average 1.2842998585572842) internal successors, (908), 722 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:51:41,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 908 transitions. [2022-11-22 01:51:41,963 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 908 transitions. Word has length 116 [2022-11-22 01:51:41,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:51:41,964 INFO L495 AbstractCegarLoop]: Abstraction has 723 states and 908 transitions. [2022-11-22 01:51:41,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-11-22 01:51:41,964 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 908 transitions. [2022-11-22 01:51:41,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 01:51:41,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:51:41,965 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:51:41,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-11-22 01:51:41,965 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:51:41,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:51:41,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1161284482, now seen corresponding path program 1 times [2022-11-22 01:51:41,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:51:41,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915602601] [2022-11-22 01:51:41,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:51:41,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:51:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:51:42,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:51:42,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:51:42,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915602601] [2022-11-22 01:51:42,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915602601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:51:42,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:51:42,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 01:51:42,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187864918] [2022-11-22 01:51:42,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:51:42,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:51:42,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:51:42,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:51:42,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:51:42,419 INFO L87 Difference]: Start difference. First operand 723 states and 908 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 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) [2022-11-22 01:51:49,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:51:49,495 INFO L93 Difference]: Finished difference Result 1933 states and 2486 transitions. [2022-11-22 01:51:49,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-22 01:51:49,495 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 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 [2022-11-22 01:51:49,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:51:49,496 INFO L225 Difference]: With dead ends: 1933 [2022-11-22 01:51:49,497 INFO L226 Difference]: Without dead ends: 1813 [2022-11-22 01:51:49,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2022-11-22 01:51:49,497 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 4026 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4026 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 1570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:51:49,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4026 Valid, 1744 Invalid, 1570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 01:51:49,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2022-11-22 01:51:50,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 731. [2022-11-22 01:51:50,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 715 states have (on average 1.2811188811188812) internal successors, (916), 730 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:51:50,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 916 transitions. [2022-11-22 01:51:50,370 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 916 transitions. Word has length 116 [2022-11-22 01:51:50,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:51:50,370 INFO L495 AbstractCegarLoop]: Abstraction has 731 states and 916 transitions. [2022-11-22 01:51:50,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 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) [2022-11-22 01:51:50,370 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 916 transitions. [2022-11-22 01:51:50,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 01:51:50,371 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:51:50,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:51:50,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-11-22 01:51:50,371 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:51:50,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:51:50,372 INFO L85 PathProgramCache]: Analyzing trace with hash 681836784, now seen corresponding path program 1 times [2022-11-22 01:51:50,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:51:50,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851637584] [2022-11-22 01:51:50,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:51:50,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:51:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:51:50,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:51:50,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:51:50,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851637584] [2022-11-22 01:51:50,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851637584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:51:50,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:51:50,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:51:50,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860544410] [2022-11-22 01:51:50,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:51:50,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:51:50,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:51:50,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:51:50,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:51:50,603 INFO L87 Difference]: Start difference. First operand 731 states and 916 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-11-22 01:51:54,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:51:54,543 INFO L93 Difference]: Finished difference Result 1507 states and 1925 transitions. [2022-11-22 01:51:54,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:51:54,543 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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 [2022-11-22 01:51:54,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:51:54,544 INFO L225 Difference]: With dead ends: 1507 [2022-11-22 01:51:54,544 INFO L226 Difference]: Without dead ends: 1331 [2022-11-22 01:51:54,545 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:51:54,545 INFO L413 NwaCegarLoop]: 489 mSDtfsCounter, 1256 mSDsluCounter, 1368 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1256 SdHoareTripleChecker+Valid, 1857 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:51:54,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1256 Valid, 1857 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:51:54,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2022-11-22 01:51:55,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 723. [2022-11-22 01:51:55,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 707 states have (on average 1.2814710042432815) internal successors, (906), 722 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:51:55,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 906 transitions. [2022-11-22 01:51:55,417 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 906 transitions. Word has length 116 [2022-11-22 01:51:55,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:51:55,417 INFO L495 AbstractCegarLoop]: Abstraction has 723 states and 906 transitions. [2022-11-22 01:51:55,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 7 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) [2022-11-22 01:51:55,417 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 906 transitions. [2022-11-22 01:51:55,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-22 01:51:55,418 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:51:55,418 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:51:55,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-11-22 01:51:55,419 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:51:55,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:51:55,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1138966953, now seen corresponding path program 1 times [2022-11-22 01:51:55,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:51:55,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814841929] [2022-11-22 01:51:55,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:51:55,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:51:55,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:51:55,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:51:55,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:51:55,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814841929] [2022-11-22 01:51:55,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814841929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:51:55,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:51:55,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:51:55,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895034607] [2022-11-22 01:51:55,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:51:55,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:51:55,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:51:55,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:51:55,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:51:55,663 INFO L87 Difference]: Start difference. First operand 723 states and 906 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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) [2022-11-22 01:51:59,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:51:59,434 INFO L93 Difference]: Finished difference Result 1359 states and 1728 transitions. [2022-11-22 01:51:59,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:51:59,435 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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 [2022-11-22 01:51:59,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:51:59,436 INFO L225 Difference]: With dead ends: 1359 [2022-11-22 01:51:59,436 INFO L226 Difference]: Without dead ends: 1243 [2022-11-22 01:51:59,436 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:51:59,437 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 1312 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 1612 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:51:59,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 1612 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:51:59,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2022-11-22 01:52:00,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 715. [2022-11-22 01:52:00,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 699 states have (on average 1.2818311874105865) internal successors, (896), 714 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:52:00,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 896 transitions. [2022-11-22 01:52:00,212 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 896 transitions. Word has length 117 [2022-11-22 01:52:00,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:52:00,212 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 896 transitions. [2022-11-22 01:52:00,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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) [2022-11-22 01:52:00,212 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 896 transitions. [2022-11-22 01:52:00,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-22 01:52:00,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:52:00,213 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:52:00,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-11-22 01:52:00,213 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:52:00,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:52:00,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1840548268, now seen corresponding path program 1 times [2022-11-22 01:52:00,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:52:00,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138650128] [2022-11-22 01:52:00,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:52:00,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:52:00,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:52:00,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:52:00,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:52:00,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138650128] [2022-11-22 01:52:00,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138650128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:52:00,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:52:00,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:52:00,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873085075] [2022-11-22 01:52:00,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:52:00,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:52:00,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:52:00,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:52:00,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:52:00,497 INFO L87 Difference]: Start difference. First operand 715 states and 896 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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) [2022-11-22 01:52:04,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:52:04,339 INFO L93 Difference]: Finished difference Result 1363 states and 1731 transitions. [2022-11-22 01:52:04,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:52:04,340 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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 [2022-11-22 01:52:04,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:52:04,341 INFO L225 Difference]: With dead ends: 1363 [2022-11-22 01:52:04,341 INFO L226 Difference]: Without dead ends: 1243 [2022-11-22 01:52:04,342 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:52:04,342 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 1298 mSDsluCounter, 1221 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1298 SdHoareTripleChecker+Valid, 1637 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:52:04,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1298 Valid, 1637 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:52:04,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2022-11-22 01:52:05,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 707. [2022-11-22 01:52:05,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 691 states have (on average 1.2821997105643994) internal successors, (886), 706 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:52:05,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 886 transitions. [2022-11-22 01:52:05,076 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 886 transitions. Word has length 117 [2022-11-22 01:52:05,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:52:05,076 INFO L495 AbstractCegarLoop]: Abstraction has 707 states and 886 transitions. [2022-11-22 01:52:05,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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) [2022-11-22 01:52:05,076 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 886 transitions. [2022-11-22 01:52:05,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-22 01:52:05,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:52:05,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:52:05,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-11-22 01:52:05,077 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:52:05,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:52:05,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1373913117, now seen corresponding path program 1 times [2022-11-22 01:52:05,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:52:05,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075143096] [2022-11-22 01:52:05,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:52:05,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:52:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:52:05,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:52:05,277 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:52:05,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075143096] [2022-11-22 01:52:05,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075143096] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:52:05,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:52:05,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:52:05,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548075138] [2022-11-22 01:52:05,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:52:05,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:52:05,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:52:05,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:52:05,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:52:05,278 INFO L87 Difference]: Start difference. First operand 707 states and 886 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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) [2022-11-22 01:52:08,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:52:08,978 INFO L93 Difference]: Finished difference Result 1363 states and 1729 transitions. [2022-11-22 01:52:08,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:52:08,979 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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 [2022-11-22 01:52:08,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:52:08,980 INFO L225 Difference]: With dead ends: 1363 [2022-11-22 01:52:08,980 INFO L226 Difference]: Without dead ends: 1243 [2022-11-22 01:52:08,980 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:52:08,981 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 1291 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1291 SdHoareTripleChecker+Valid, 1653 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:52:08,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1291 Valid, 1653 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:52:08,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2022-11-22 01:52:09,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 699. [2022-11-22 01:52:09,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 683 states have (on average 1.2825768667642752) internal successors, (876), 698 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:52:09,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 876 transitions. [2022-11-22 01:52:09,854 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 876 transitions. Word has length 117 [2022-11-22 01:52:09,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:52:09,854 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 876 transitions. [2022-11-22 01:52:09,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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) [2022-11-22 01:52:09,854 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 876 transitions. [2022-11-22 01:52:09,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-22 01:52:09,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:52:09,855 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:52:09,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-11-22 01:52:09,856 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:52:09,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:52:09,856 INFO L85 PathProgramCache]: Analyzing trace with hash 474415084, now seen corresponding path program 1 times [2022-11-22 01:52:09,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:52:09,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584839639] [2022-11-22 01:52:09,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:52:09,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:52:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:52:10,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:52:10,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:52:10,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584839639] [2022-11-22 01:52:10,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584839639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:52:10,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:52:10,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:52:10,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779714595] [2022-11-22 01:52:10,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:52:10,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:52:10,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:52:10,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:52:10,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:52:10,095 INFO L87 Difference]: Start difference. First operand 699 states and 876 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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) [2022-11-22 01:52:14,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:52:14,006 INFO L93 Difference]: Finished difference Result 1403 states and 1790 transitions. [2022-11-22 01:52:14,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:52:14,007 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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 [2022-11-22 01:52:14,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:52:14,008 INFO L225 Difference]: With dead ends: 1403 [2022-11-22 01:52:14,008 INFO L226 Difference]: Without dead ends: 1267 [2022-11-22 01:52:14,008 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:52:14,008 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 1172 mSDsluCounter, 1437 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1172 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:52:14,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1172 Valid, 1928 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1486 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:52:14,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2022-11-22 01:52:14,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 691. [2022-11-22 01:52:14,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 675 states have (on average 1.2829629629629629) internal successors, (866), 690 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:52:14,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 866 transitions. [2022-11-22 01:52:14,763 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 866 transitions. Word has length 117 [2022-11-22 01:52:14,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:52:14,763 INFO L495 AbstractCegarLoop]: Abstraction has 691 states and 866 transitions. [2022-11-22 01:52:14,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 7 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) [2022-11-22 01:52:14,763 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 866 transitions. [2022-11-22 01:52:14,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-22 01:52:14,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:52:14,764 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:52:14,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-11-22 01:52:14,765 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:52:14,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:52:14,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1619500807, now seen corresponding path program 1 times [2022-11-22 01:52:14,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:52:14,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989384679] [2022-11-22 01:52:14,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:52:14,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:52:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:52:15,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:52:15,399 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:52:15,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989384679] [2022-11-22 01:52:15,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989384679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:52:15,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:52:15,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-22 01:52:15,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017797840] [2022-11-22 01:52:15,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:52:15,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 01:52:15,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:52:15,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 01:52:15,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:52:15,400 INFO L87 Difference]: Start difference. First operand 691 states and 866 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) [2022-11-22 01:52:18,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:52:18,275 INFO L93 Difference]: Finished difference Result 1123 states and 1411 transitions. [2022-11-22 01:52:18,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 01:52:18,275 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 [2022-11-22 01:52:18,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:52:18,276 INFO L225 Difference]: With dead ends: 1123 [2022-11-22 01:52:18,276 INFO L226 Difference]: Without dead ends: 1005 [2022-11-22 01:52:18,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2022-11-22 01:52:18,277 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 2559 mSDsluCounter, 2316 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2559 SdHoareTripleChecker+Valid, 2769 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:52:18,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2559 Valid, 2769 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1171 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:52:18,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2022-11-22 01:52:19,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 681. [2022-11-22 01:52:19,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 666 states have (on average 1.2777777777777777) internal successors, (851), 680 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:52:19,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 851 transitions. [2022-11-22 01:52:19,109 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 851 transitions. Word has length 117 [2022-11-22 01:52:19,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:52:19,110 INFO L495 AbstractCegarLoop]: Abstraction has 681 states and 851 transitions. [2022-11-22 01:52:19,110 INFO L496 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) [2022-11-22 01:52:19,110 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 851 transitions. [2022-11-22 01:52:19,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-22 01:52:19,111 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:52:19,111 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:52:19,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-11-22 01:52:19,111 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:52:19,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:52:19,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1077967282, now seen corresponding path program 1 times [2022-11-22 01:52:19,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:52:19,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320045103] [2022-11-22 01:52:19,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:52:19,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:52:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:52:19,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:52:19,673 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:52:19,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320045103] [2022-11-22 01:52:19,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320045103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:52:19,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:52:19,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-22 01:52:19,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257618388] [2022-11-22 01:52:19,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:52:19,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 01:52:19,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:52:19,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 01:52:19,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:52:19,675 INFO L87 Difference]: Start difference. First operand 681 states and 851 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) [2022-11-22 01:52:24,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:52:24,328 INFO L93 Difference]: Finished difference Result 1649 states and 2107 transitions. [2022-11-22 01:52:24,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:52:24,329 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 [2022-11-22 01:52:24,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:52:24,330 INFO L225 Difference]: With dead ends: 1649 [2022-11-22 01:52:24,330 INFO L226 Difference]: Without dead ends: 1483 [2022-11-22 01:52:24,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-22 01:52:24,331 INFO L413 NwaCegarLoop]: 862 mSDtfsCounter, 2203 mSDsluCounter, 4433 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2203 SdHoareTripleChecker+Valid, 5295 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:52:24,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2203 Valid, 5295 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:52:24,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2022-11-22 01:52:25,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 627. [2022-11-22 01:52:25,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 615 states have (on average 1.2682926829268293) internal successors, (780), 626 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:52:25,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 780 transitions. [2022-11-22 01:52:25,079 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 780 transitions. Word has length 117 [2022-11-22 01:52:25,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:52:25,079 INFO L495 AbstractCegarLoop]: Abstraction has 627 states and 780 transitions. [2022-11-22 01:52:25,079 INFO L496 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) [2022-11-22 01:52:25,079 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 780 transitions. [2022-11-22 01:52:25,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-22 01:52:25,080 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:52:25,080 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:52:25,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-11-22 01:52:25,080 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:52:25,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:52:25,081 INFO L85 PathProgramCache]: Analyzing trace with hash -368802669, now seen corresponding path program 1 times [2022-11-22 01:52:25,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:52:25,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322520621] [2022-11-22 01:52:25,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:52:25,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:52:25,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:52:25,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:52:25,712 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:52:25,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322520621] [2022-11-22 01:52:25,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322520621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:52:25,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:52:25,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-22 01:52:25,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302018025] [2022-11-22 01:52:25,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:52:25,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 01:52:25,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:52:25,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 01:52:25,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:52:25,714 INFO L87 Difference]: Start difference. First operand 627 states and 780 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) [2022-11-22 01:52:30,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:52:30,481 INFO L93 Difference]: Finished difference Result 1541 states and 1971 transitions. [2022-11-22 01:52:30,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:52:30,482 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 [2022-11-22 01:52:30,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:52:30,483 INFO L225 Difference]: With dead ends: 1541 [2022-11-22 01:52:30,483 INFO L226 Difference]: Without dead ends: 1383 [2022-11-22 01:52:30,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-22 01:52:30,484 INFO L413 NwaCegarLoop]: 715 mSDtfsCounter, 2519 mSDsluCounter, 3694 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2519 SdHoareTripleChecker+Valid, 4409 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:52:30,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2519 Valid, 4409 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:52:30,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2022-11-22 01:52:31,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 581. [2022-11-22 01:52:31,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 570 states have (on average 1.2614035087719297) internal successors, (719), 580 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:52:31,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 719 transitions. [2022-11-22 01:52:31,338 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 719 transitions. Word has length 117 [2022-11-22 01:52:31,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:52:31,338 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 719 transitions. [2022-11-22 01:52:31,338 INFO L496 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) [2022-11-22 01:52:31,338 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 719 transitions. [2022-11-22 01:52:31,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-22 01:52:31,339 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:52:31,339 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:52:31,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-11-22 01:52:31,339 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:52:31,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:52:31,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1858693470, now seen corresponding path program 1 times [2022-11-22 01:52:31,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:52:31,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349275938] [2022-11-22 01:52:31,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:52:31,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:52:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:52:31,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:52:31,878 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:52:31,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349275938] [2022-11-22 01:52:31,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349275938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:52:31,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:52:31,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-22 01:52:31,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014143142] [2022-11-22 01:52:31,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:52:31,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 01:52:31,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:52:31,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 01:52:31,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:52:31,879 INFO L87 Difference]: Start difference. First operand 581 states and 719 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) [2022-11-22 01:52:39,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:52:39,279 INFO L93 Difference]: Finished difference Result 2033 states and 2609 transitions. [2022-11-22 01:52:39,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-22 01:52:39,280 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 [2022-11-22 01:52:39,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:52:39,281 INFO L225 Difference]: With dead ends: 2033 [2022-11-22 01:52:39,281 INFO L226 Difference]: Without dead ends: 1855 [2022-11-22 01:52:39,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-11-22 01:52:39,282 INFO L413 NwaCegarLoop]: 941 mSDtfsCounter, 2248 mSDsluCounter, 5592 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2248 SdHoareTripleChecker+Valid, 6533 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:52:39,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2248 Valid, 6533 Invalid, 935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 934 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:52:39,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1855 states. [2022-11-22 01:52:40,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1855 to 515. [2022-11-22 01:52:40,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 507 states have (on average 1.2504930966469427) internal successors, (634), 514 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:52:40,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 634 transitions. [2022-11-22 01:52:40,016 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 634 transitions. Word has length 117 [2022-11-22 01:52:40,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:52:40,017 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 634 transitions. [2022-11-22 01:52:40,017 INFO L496 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) [2022-11-22 01:52:40,017 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 634 transitions. [2022-11-22 01:52:40,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-22 01:52:40,017 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:52:40,018 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:52:40,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-11-22 01:52:40,018 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:52:40,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:52:40,018 INFO L85 PathProgramCache]: Analyzing trace with hash -840505809, now seen corresponding path program 1 times [2022-11-22 01:52:40,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:52:40,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20826499] [2022-11-22 01:52:40,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:52:40,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:52:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:52:40,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:52:40,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:52:40,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20826499] [2022-11-22 01:52:40,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20826499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:52:40,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:52:40,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-22 01:52:40,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149965542] [2022-11-22 01:52:40,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:52:40,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 01:52:40,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:52:40,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 01:52:40,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:52:40,592 INFO L87 Difference]: Start difference. First operand 515 states and 634 transitions. Second operand has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 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) [2022-11-22 01:52:47,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:52:47,760 INFO L93 Difference]: Finished difference Result 1967 states and 2522 transitions. [2022-11-22 01:52:47,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-22 01:52:47,761 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 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 [2022-11-22 01:52:47,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:52:47,762 INFO L225 Difference]: With dead ends: 1967 [2022-11-22 01:52:47,762 INFO L226 Difference]: Without dead ends: 1771 [2022-11-22 01:52:47,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2022-11-22 01:52:47,764 INFO L413 NwaCegarLoop]: 779 mSDtfsCounter, 2121 mSDsluCounter, 4775 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2121 SdHoareTripleChecker+Valid, 5554 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:52:47,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2121 Valid, 5554 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:52:47,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2022-11-22 01:52:48,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 431. [2022-11-22 01:52:48,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 424 states have (on average 1.2382075471698113) internal successors, (525), 430 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:52:48,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 525 transitions. [2022-11-22 01:52:48,513 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 525 transitions. Word has length 118 [2022-11-22 01:52:48,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:52:48,513 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 525 transitions. [2022-11-22 01:52:48,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 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) [2022-11-22 01:52:48,513 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 525 transitions. [2022-11-22 01:52:48,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-22 01:52:48,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:52:48,515 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:52:48,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-11-22 01:52:48,515 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:52:48,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:52:48,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1576151006, now seen corresponding path program 1 times [2022-11-22 01:52:48,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:52:48,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627089795] [2022-11-22 01:52:48,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:52:48,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:52:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:52:49,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:52:49,143 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:52:49,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627089795] [2022-11-22 01:52:49,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627089795] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:52:49,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:52:49,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-22 01:52:49,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372499029] [2022-11-22 01:52:49,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:52:49,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 01:52:49,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:52:49,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 01:52:49,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:52:49,145 INFO L87 Difference]: Start difference. First operand 431 states and 525 transitions. Second operand has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 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) [2022-11-22 01:52:54,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:52:54,224 INFO L93 Difference]: Finished difference Result 1349 states and 1709 transitions. [2022-11-22 01:52:54,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-22 01:52:54,225 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 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 [2022-11-22 01:52:54,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:52:54,226 INFO L225 Difference]: With dead ends: 1349 [2022-11-22 01:52:54,226 INFO L226 Difference]: Without dead ends: 1113 [2022-11-22 01:52:54,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-11-22 01:52:54,227 INFO L413 NwaCegarLoop]: 649 mSDtfsCounter, 1344 mSDsluCounter, 4225 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1344 SdHoareTripleChecker+Valid, 4874 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:52:54,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1344 Valid, 4874 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:52:54,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2022-11-22 01:52:55,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 301. [2022-11-22 01:52:55,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 298 states have (on average 1.2013422818791946) internal successors, (358), 300 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:52:55,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 358 transitions. [2022-11-22 01:52:55,005 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 358 transitions. Word has length 118 [2022-11-22 01:52:55,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:52:55,005 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 358 transitions. [2022-11-22 01:52:55,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 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) [2022-11-22 01:52:55,006 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 358 transitions. [2022-11-22 01:52:55,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-22 01:52:55,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:52:55,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:52:55,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-11-22 01:52:55,007 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:52:55,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:52:55,008 INFO L85 PathProgramCache]: Analyzing trace with hash 912390114, now seen corresponding path program 1 times [2022-11-22 01:52:55,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:52:55,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204036272] [2022-11-22 01:52:55,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:52:55,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:52:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:52:55,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:52:55,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:52:55,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204036272] [2022-11-22 01:52:55,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204036272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:52:55,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:52:55,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:52:55,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170679332] [2022-11-22 01:52:55,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:52:55,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:52:55,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:52:55,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:52:55,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:52:55,211 INFO L87 Difference]: Start difference. First operand 301 states and 358 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) [2022-11-22 01:52:57,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:52:57,215 INFO L93 Difference]: Finished difference Result 615 states and 761 transitions. [2022-11-22 01:52:57,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-22 01:52:57,215 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 [2022-11-22 01:52:57,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:52:57,226 INFO L225 Difference]: With dead ends: 615 [2022-11-22 01:52:57,226 INFO L226 Difference]: Without dead ends: 473 [2022-11-22 01:52:57,226 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:52:57,227 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 811 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:52:57,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 641 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:52:57,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-11-22 01:52:57,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 301. [2022-11-22 01:52:57,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 298 states have (on average 1.1946308724832215) internal successors, (356), 300 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:52:57,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 356 transitions. [2022-11-22 01:52:57,956 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 356 transitions. Word has length 118 [2022-11-22 01:52:57,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:52:57,956 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 356 transitions. [2022-11-22 01:52:57,956 INFO L496 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) [2022-11-22 01:52:57,956 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 356 transitions. [2022-11-22 01:52:57,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-22 01:52:57,956 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:52:57,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:52:57,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-11-22 01:52:57,957 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:52:57,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:52:57,957 INFO L85 PathProgramCache]: Analyzing trace with hash 2050593512, now seen corresponding path program 1 times [2022-11-22 01:52:57,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:52:57,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126489931] [2022-11-22 01:52:57,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:52:57,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:52:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:52:58,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:52:58,212 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:52:58,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126489931] [2022-11-22 01:52:58,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126489931] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:52:58,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:52:58,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:52:58,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672504775] [2022-11-22 01:52:58,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:52:58,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:52:58,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:52:58,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:52:58,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:52:58,214 INFO L87 Difference]: Start difference. First operand 301 states and 356 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) [2022-11-22 01:53:00,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:53:00,237 INFO L93 Difference]: Finished difference Result 456 states and 551 transitions. [2022-11-22 01:53:00,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 01:53:00,238 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 [2022-11-22 01:53:00,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:53:00,238 INFO L225 Difference]: With dead ends: 456 [2022-11-22 01:53:00,239 INFO L226 Difference]: Without dead ends: 449 [2022-11-22 01:53:00,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:53:00,239 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 490 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:53:00,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 801 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:53:00,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2022-11-22 01:53:00,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 301. [2022-11-22 01:53:00,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 298 states have (on average 1.191275167785235) internal successors, (355), 300 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:00,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 355 transitions. [2022-11-22 01:53:00,927 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 355 transitions. Word has length 118 [2022-11-22 01:53:00,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:53:00,927 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 355 transitions. [2022-11-22 01:53:00,927 INFO L496 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) [2022-11-22 01:53:00,927 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 355 transitions. [2022-11-22 01:53:00,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-22 01:53:00,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:00,928 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:53:00,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-11-22 01:53:00,928 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:53:00,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:00,928 INFO L85 PathProgramCache]: Analyzing trace with hash 646441976, now seen corresponding path program 1 times [2022-11-22 01:53:00,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:53:00,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392675531] [2022-11-22 01:53:00,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:00,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:53:00,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:03,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:03,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:53:03,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392675531] [2022-11-22 01:53:03,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392675531] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:53:03,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:53:03,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2022-11-22 01:53:03,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128768495] [2022-11-22 01:53:03,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:53:03,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-22 01:53:03,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:53:03,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-22 01:53:03,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1160, Unknown=0, NotChecked=0, Total=1260 [2022-11-22 01:53:03,797 INFO L87 Difference]: Start difference. First operand 301 states and 355 transitions. Second operand has 36 states, 36 states have (on average 3.3333333333333335) internal successors, (120), 36 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:10,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:53:10,847 INFO L93 Difference]: Finished difference Result 360 states and 418 transitions. [2022-11-22 01:53:10,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-22 01:53:10,848 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 3.3333333333333335) internal successors, (120), 36 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2022-11-22 01:53:10,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:53:10,848 INFO L225 Difference]: With dead ends: 360 [2022-11-22 01:53:10,848 INFO L226 Difference]: Without dead ends: 352 [2022-11-22 01:53:10,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=616, Invalid=3940, Unknown=0, NotChecked=0, Total=4556 [2022-11-22 01:53:10,849 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 1000 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 2676 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 3690 SdHoareTripleChecker+Invalid, 2698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:53:10,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 3690 Invalid, 2698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2676 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-22 01:53:10,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-11-22 01:53:11,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 325. [2022-11-22 01:53:11,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 322 states have (on average 1.1925465838509317) internal successors, (384), 324 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:11,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 384 transitions. [2022-11-22 01:53:11,552 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 384 transitions. Word has length 120 [2022-11-22 01:53:11,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:53:11,552 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 384 transitions. [2022-11-22 01:53:11,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.3333333333333335) internal successors, (120), 36 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:11,552 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 384 transitions. [2022-11-22 01:53:11,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-22 01:53:11,553 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:11,553 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:53:11,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-11-22 01:53:11,553 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:53:11,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:11,553 INFO L85 PathProgramCache]: Analyzing trace with hash 303068725, now seen corresponding path program 1 times [2022-11-22 01:53:11,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:53:11,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887872412] [2022-11-22 01:53:11,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:11,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:53:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:14,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:14,716 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:53:14,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887872412] [2022-11-22 01:53:14,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887872412] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:53:14,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:53:14,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2022-11-22 01:53:14,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465119181] [2022-11-22 01:53:14,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:53:14,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-22 01:53:14,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:53:14,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-22 01:53:14,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1266, Unknown=0, NotChecked=0, Total=1406 [2022-11-22 01:53:14,718 INFO L87 Difference]: Start difference. First operand 325 states and 384 transitions. Second operand has 38 states, 38 states have (on average 3.1578947368421053) internal successors, (120), 37 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:22,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:53:22,752 INFO L93 Difference]: Finished difference Result 590 states and 723 transitions. [2022-11-22 01:53:22,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-22 01:53:22,752 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.1578947368421053) internal successors, (120), 37 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2022-11-22 01:53:22,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:53:22,753 INFO L225 Difference]: With dead ends: 590 [2022-11-22 01:53:22,753 INFO L226 Difference]: Without dead ends: 584 [2022-11-22 01:53:22,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 946 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=740, Invalid=4230, Unknown=0, NotChecked=0, Total=4970 [2022-11-22 01:53:22,754 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 1126 mSDsluCounter, 5030 mSDsCounter, 0 mSdLazyCounter, 3188 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1126 SdHoareTripleChecker+Valid, 5242 SdHoareTripleChecker+Invalid, 3201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 3188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:53:22,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1126 Valid, 5242 Invalid, 3201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 3188 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-22 01:53:22,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2022-11-22 01:53:23,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 331. [2022-11-22 01:53:23,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 328 states have (on average 1.1951219512195121) internal successors, (392), 330 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:23,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 392 transitions. [2022-11-22 01:53:23,504 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 392 transitions. Word has length 120 [2022-11-22 01:53:23,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:53:23,504 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 392 transitions. [2022-11-22 01:53:23,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.1578947368421053) internal successors, (120), 37 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:23,504 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 392 transitions. [2022-11-22 01:53:23,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-22 01:53:23,504 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:23,505 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:53:23,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-11-22 01:53:23,505 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:53:23,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:23,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1010081928, now seen corresponding path program 1 times [2022-11-22 01:53:23,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:53:23,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415554496] [2022-11-22 01:53:23,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:23,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:53:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:24,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:24,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:53:24,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415554496] [2022-11-22 01:53:24,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415554496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:53:24,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:53:24,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-22 01:53:24,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732165246] [2022-11-22 01:53:24,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:53:24,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 01:53:24,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:53:24,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 01:53:24,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:53:24,008 INFO L87 Difference]: Start difference. First operand 331 states and 392 transitions. Second operand has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:27,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:53:27,380 INFO L93 Difference]: Finished difference Result 775 states and 963 transitions. [2022-11-22 01:53:27,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:53:27,380 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-11-22 01:53:27,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:53:27,381 INFO L225 Difference]: With dead ends: 775 [2022-11-22 01:53:27,381 INFO L226 Difference]: Without dead ends: 760 [2022-11-22 01:53:27,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-22 01:53:27,382 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 1151 mSDsluCounter, 1488 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 1932 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:53:27,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1151 Valid, 1932 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:53:27,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2022-11-22 01:53:28,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 315. [2022-11-22 01:53:28,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 313 states have (on average 1.1916932907348243) internal successors, (373), 314 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:28,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 373 transitions. [2022-11-22 01:53:28,077 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 373 transitions. Word has length 121 [2022-11-22 01:53:28,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:53:28,077 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 373 transitions. [2022-11-22 01:53:28,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:28,078 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 373 transitions. [2022-11-22 01:53:28,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-22 01:53:28,078 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:28,078 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:53:28,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-11-22 01:53:28,078 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:53:28,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:28,079 INFO L85 PathProgramCache]: Analyzing trace with hash 666708677, now seen corresponding path program 1 times [2022-11-22 01:53:28,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:53:28,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212380772] [2022-11-22 01:53:28,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:28,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:53:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:28,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:28,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:53:28,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212380772] [2022-11-22 01:53:28,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212380772] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:53:28,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:53:28,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-22 01:53:28,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086888579] [2022-11-22 01:53:28,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:53:28,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 01:53:28,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:53:28,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 01:53:28,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:53:28,623 INFO L87 Difference]: Start difference. First operand 315 states and 373 transitions. Second operand has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:31,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:53:31,692 INFO L93 Difference]: Finished difference Result 705 states and 877 transitions. [2022-11-22 01:53:31,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:53:31,693 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-11-22 01:53:31,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:53:31,693 INFO L225 Difference]: With dead ends: 705 [2022-11-22 01:53:31,694 INFO L226 Difference]: Without dead ends: 699 [2022-11-22 01:53:31,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=110, Invalid=310, Unknown=0, NotChecked=0, Total=420 [2022-11-22 01:53:31,694 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 802 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 1654 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:53:31,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 1654 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:53:31,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-11-22 01:53:32,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 283. [2022-11-22 01:53:32,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 282 states have (on average 1.1843971631205674) internal successors, (334), 282 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:32,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 334 transitions. [2022-11-22 01:53:32,358 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 334 transitions. Word has length 121 [2022-11-22 01:53:32,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:53:32,358 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 334 transitions. [2022-11-22 01:53:32,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 11 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:32,359 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 334 transitions. [2022-11-22 01:53:32,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-22 01:53:32,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:32,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:53:32,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-11-22 01:53:32,364 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:53:32,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:32,364 INFO L85 PathProgramCache]: Analyzing trace with hash -503030345, now seen corresponding path program 1 times [2022-11-22 01:53:32,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:53:32,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251735085] [2022-11-22 01:53:32,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:32,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:53:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:32,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:32,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:53:32,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251735085] [2022-11-22 01:53:32,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251735085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:53:32,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:53:32,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:53:32,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026279253] [2022-11-22 01:53:32,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:53:32,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:53:32,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:53:32,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:53:32,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:53:32,515 INFO L87 Difference]: Start difference. First operand 283 states and 334 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:33,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:53:33,587 INFO L93 Difference]: Finished difference Result 404 states and 493 transitions. [2022-11-22 01:53:33,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:53:33,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2022-11-22 01:53:33,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:53:33,588 INFO L225 Difference]: With dead ends: 404 [2022-11-22 01:53:33,588 INFO L226 Difference]: Without dead ends: 347 [2022-11-22 01:53:33,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:53:33,589 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 86 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:53:33,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 405 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:53:33,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-11-22 01:53:34,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 337. [2022-11-22 01:53:34,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 336 states have (on average 1.2023809523809523) internal successors, (404), 336 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:34,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 404 transitions. [2022-11-22 01:53:34,557 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 404 transitions. Word has length 143 [2022-11-22 01:53:34,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:53:34,557 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 404 transitions. [2022-11-22 01:53:34,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:34,557 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 404 transitions. [2022-11-22 01:53:34,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-22 01:53:34,558 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:34,558 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:53:34,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-11-22 01:53:34,558 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:53:34,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:34,559 INFO L85 PathProgramCache]: Analyzing trace with hash -308310046, now seen corresponding path program 1 times [2022-11-22 01:53:34,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:53:34,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971176938] [2022-11-22 01:53:34,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:34,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:53:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:34,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:34,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:53:34,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971176938] [2022-11-22 01:53:34,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971176938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:53:34,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:53:34,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:53:34,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588760139] [2022-11-22 01:53:34,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:53:34,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:53:34,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:53:34,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:53:34,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:53:34,686 INFO L87 Difference]: Start difference. First operand 337 states and 404 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:36,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:53:36,544 INFO L93 Difference]: Finished difference Result 663 states and 834 transitions. [2022-11-22 01:53:36,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:53:36,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2022-11-22 01:53:36,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:53:36,546 INFO L225 Difference]: With dead ends: 663 [2022-11-22 01:53:36,546 INFO L226 Difference]: Without dead ends: 500 [2022-11-22 01:53:36,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:53:36,546 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 79 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:53:36,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 405 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:53:36,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-11-22 01:53:38,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 486. [2022-11-22 01:53:38,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 485 states have (on average 1.2371134020618557) internal successors, (600), 485 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:38,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 600 transitions. [2022-11-22 01:53:38,287 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 600 transitions. Word has length 146 [2022-11-22 01:53:38,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:53:38,287 INFO L495 AbstractCegarLoop]: Abstraction has 486 states and 600 transitions. [2022-11-22 01:53:38,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:38,287 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 600 transitions. [2022-11-22 01:53:38,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-22 01:53:38,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:38,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:53:38,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-11-22 01:53:38,288 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:53:38,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:38,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1573321042, now seen corresponding path program 1 times [2022-11-22 01:53:38,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:53:38,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341565649] [2022-11-22 01:53:38,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:38,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:53:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:38,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:38,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:53:38,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341565649] [2022-11-22 01:53:38,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341565649] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:53:38,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:53:38,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:53:38,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935978203] [2022-11-22 01:53:38,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:53:38,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:53:38,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:53:38,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:53:38,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:53:38,445 INFO L87 Difference]: Start difference. First operand 486 states and 600 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:42,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:53:42,190 INFO L93 Difference]: Finished difference Result 1110 states and 1422 transitions. [2022-11-22 01:53:42,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:53:42,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2022-11-22 01:53:42,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:53:42,191 INFO L225 Difference]: With dead ends: 1110 [2022-11-22 01:53:42,191 INFO L226 Difference]: Without dead ends: 798 [2022-11-22 01:53:42,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:53:42,192 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 72 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:53:42,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 405 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:53:42,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2022-11-22 01:53:45,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 772. [2022-11-22 01:53:45,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 772 states, 771 states have (on average 1.2632944228274967) internal successors, (974), 771 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:45,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 974 transitions. [2022-11-22 01:53:45,460 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 974 transitions. Word has length 149 [2022-11-22 01:53:45,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:53:45,460 INFO L495 AbstractCegarLoop]: Abstraction has 772 states and 974 transitions. [2022-11-22 01:53:45,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:45,460 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 974 transitions. [2022-11-22 01:53:45,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-22 01:53:45,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:45,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:53:45,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-11-22 01:53:45,461 INFO L420 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:53:45,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:45,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1670580459, now seen corresponding path program 1 times [2022-11-22 01:53:45,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:53:45,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669900441] [2022-11-22 01:53:45,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:45,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:53:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:45,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:45,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:53:45,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669900441] [2022-11-22 01:53:45,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669900441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:53:45,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:53:45,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:53:45,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310306956] [2022-11-22 01:53:45,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:53:45,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:53:45,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:53:45,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:53:45,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:53:45,612 INFO L87 Difference]: Start difference. First operand 772 states and 974 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:52,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:53:52,205 INFO L93 Difference]: Finished difference Result 1968 states and 2544 transitions. [2022-11-22 01:53:52,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:53:52,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2022-11-22 01:53:52,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:53:52,208 INFO L225 Difference]: With dead ends: 1968 [2022-11-22 01:53:52,208 INFO L226 Difference]: Without dead ends: 1370 [2022-11-22 01:53:52,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:53:52,209 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 65 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:53:52,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 405 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:53:52,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1370 states. [2022-11-22 01:53:58,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1370 to 1320. [2022-11-22 01:53:58,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1319 states have (on average 1.2782410917361637) internal successors, (1686), 1319 states have internal predecessors, (1686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:58,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1686 transitions. [2022-11-22 01:53:58,697 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1686 transitions. Word has length 152 [2022-11-22 01:53:58,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:53:58,698 INFO L495 AbstractCegarLoop]: Abstraction has 1320 states and 1686 transitions. [2022-11-22 01:53:58,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:58,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1686 transitions. [2022-11-22 01:53:58,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-22 01:53:58,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:58,698 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:53:58,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-11-22 01:53:58,699 INFO L420 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:53:58,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:58,699 INFO L85 PathProgramCache]: Analyzing trace with hash -139408378, now seen corresponding path program 1 times [2022-11-22 01:53:58,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:53:58,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412558914] [2022-11-22 01:53:58,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:58,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:53:58,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:58,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:58,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:53:58,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412558914] [2022-11-22 01:53:58,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412558914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:53:58,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:53:58,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:53:58,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78632508] [2022-11-22 01:53:58,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:53:58,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:53:58,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:53:58,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:53:58,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:53:58,849 INFO L87 Difference]: Start difference. First operand 1320 states and 1686 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:54:11,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:54:11,848 INFO L93 Difference]: Finished difference Result 3612 states and 4680 transitions. [2022-11-22 01:54:11,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:54:11,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2022-11-22 01:54:11,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:54:11,850 INFO L225 Difference]: With dead ends: 3612 [2022-11-22 01:54:11,851 INFO L226 Difference]: Without dead ends: 2466 [2022-11-22 01:54:11,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:54:11,852 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 58 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:54:11,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 405 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:54:11,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2466 states. [2022-11-22 01:54:24,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2466 to 2368. [2022-11-22 01:54:24,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2368 states, 2367 states have (on average 1.2834811998310096) internal successors, (3038), 2367 states have internal predecessors, (3038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:54:24,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2368 states to 2368 states and 3038 transitions. [2022-11-22 01:54:24,221 INFO L78 Accepts]: Start accepts. Automaton has 2368 states and 3038 transitions. Word has length 155 [2022-11-22 01:54:24,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:54:24,221 INFO L495 AbstractCegarLoop]: Abstraction has 2368 states and 3038 transitions. [2022-11-22 01:54:24,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:54:24,222 INFO L276 IsEmpty]: Start isEmpty. Operand 2368 states and 3038 transitions. [2022-11-22 01:54:24,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-22 01:54:24,222 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:54:24,222 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:54:24,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-11-22 01:54:24,222 INFO L420 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:54:24,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:54:24,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1247567845, now seen corresponding path program 1 times [2022-11-22 01:54:24,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:54:24,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956665531] [2022-11-22 01:54:24,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:54:24,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:54:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:54:24,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:54:24,386 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:54:24,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956665531] [2022-11-22 01:54:24,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956665531] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:54:24,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:54:24,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:54:24,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604772422] [2022-11-22 01:54:24,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:54:24,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:54:24,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:54:24,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:54:24,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:54:24,389 INFO L87 Difference]: Start difference. First operand 2368 states and 3038 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:54:49,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:54:49,160 INFO L93 Difference]: Finished difference Result 6756 states and 8736 transitions. [2022-11-22 01:54:49,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:54:49,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2022-11-22 01:54:49,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:54:49,166 INFO L225 Difference]: With dead ends: 6756 [2022-11-22 01:54:49,166 INFO L226 Difference]: Without dead ends: 4562 [2022-11-22 01:54:49,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:54:49,168 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 51 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:54:49,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 405 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:54:49,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4562 states. [2022-11-22 01:55:12,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4562 to 4368. [2022-11-22 01:55:12,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4368 states, 4367 states have (on average 1.2818868788642088) internal successors, (5598), 4367 states have internal predecessors, (5598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:12,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4368 states to 4368 states and 5598 transitions. [2022-11-22 01:55:12,592 INFO L78 Accepts]: Start accepts. Automaton has 4368 states and 5598 transitions. Word has length 158 [2022-11-22 01:55:12,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:12,593 INFO L495 AbstractCegarLoop]: Abstraction has 4368 states and 5598 transitions. [2022-11-22 01:55:12,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:12,593 INFO L276 IsEmpty]: Start isEmpty. Operand 4368 states and 5598 transitions. [2022-11-22 01:55:12,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-22 01:55:12,593 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:12,593 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:12,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-11-22 01:55:12,594 INFO L420 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:55:12,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:12,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1133374637, now seen corresponding path program 1 times [2022-11-22 01:55:12,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:12,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118298217] [2022-11-22 01:55:12,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:12,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:12,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:12,705 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:12,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118298217] [2022-11-22 01:55:12,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118298217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:12,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:12,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:55:12,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229092287] [2022-11-22 01:55:12,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:12,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:55:12,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:12,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:55:12,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:55:12,706 INFO L87 Difference]: Start difference. First operand 4368 states and 5598 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:59,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:59,444 INFO L93 Difference]: Finished difference Result 12756 states and 16416 transitions. [2022-11-22 01:55:59,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:55:59,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2022-11-22 01:55:59,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:59,453 INFO L225 Difference]: With dead ends: 12756 [2022-11-22 01:55:59,454 INFO L226 Difference]: Without dead ends: 8562 [2022-11-22 01:55:59,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:55:59,457 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 40 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:59,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 404 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:55:59,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8562 states. [2022-11-22 01:56:45,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8562 to 8176. [2022-11-22 01:56:45,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8176 states, 8175 states have (on average 1.2758409785932723) internal successors, (10430), 8175 states have internal predecessors, (10430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:56:45,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8176 states to 8176 states and 10430 transitions. [2022-11-22 01:56:45,091 INFO L78 Accepts]: Start accepts. Automaton has 8176 states and 10430 transitions. Word has length 161 [2022-11-22 01:56:45,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:56:45,091 INFO L495 AbstractCegarLoop]: Abstraction has 8176 states and 10430 transitions. [2022-11-22 01:56:45,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:56:45,091 INFO L276 IsEmpty]: Start isEmpty. Operand 8176 states and 10430 transitions. [2022-11-22 01:56:45,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-22 01:56:45,092 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:56:45,092 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:56:45,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-11-22 01:56:45,092 INFO L420 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2022-11-22 01:56:45,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:56:45,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1257884166, now seen corresponding path program 1 times [2022-11-22 01:56:45,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:56:45,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954201448] [2022-11-22 01:56:45,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:56:45,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:56:45,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:56:45,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:56:45,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:56:45,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954201448] [2022-11-22 01:56:45,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954201448] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:56:45,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:56:45,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-22 01:56:45,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476453015] [2022-11-22 01:56:45,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:56:45,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 01:56:45,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:56:45,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 01:56:45,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:56:45,279 INFO L87 Difference]: Start difference. First operand 8176 states and 10430 transitions. Second operand has 9 states, 9 states have (on average 18.22222222222222) internal successors, (164), 9 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)